CNPS Rare Plant Inventory

572 matches found. Click on scientific name for details

Search Criteria: , CRPR is one of [1B:2B] , G Rank is one of [G1:G2], Bloom Month is one of [mar:apr:may]

Scientific Name	Common Name	Family	Lifeform	Blooming Period	Fed List	State List	Global Rank	State Rank	CA Rare Plant Rank	Other Status	Threats	General Habitats	Microhabitats	Lowest Elevation (m)	Highest Elevation (m)	Lowest Elevation (ft)	Highest Elevation (ft)	CA Endemic	Date Added	Photo
Ambrosia pumila	San Diego ambrosia	Asteraceae	perennial rhizomatous herb	Apr-Oct	FE	None	G1	S1	1B.1	SB_CRES	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Coastal scrub, Valley and foothill grassland, Vernal pools	Alkaline (sometimes), Clay (sometimes), Disturbed areas (often), Loam (sometimes), Sandy (sometimes)	20	415	65	1360		1974-01-01	© 2010 Benjamin Smith
Spermolepis gigantea	desert scaleseed	Apiaceae	annual herb	Mar-Apr	None	None	G1	SH	2B.1			Sonoran desert scrub		400	400	1310	1310		1988-01-01	No Photo Available
Amsinckia grandiflora	large-flowered fiddleneck	Boraginaceae	annual herb	(Mar)Apr-May	FE	CE	G1	S1	1B.1	SB_UCBG	Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Non-native plant impacts, Other	Cismontane woodland, Valley and foothill grassland		270	550	885	1805	Yes	1974-01-01	© 2015 Zoya Akulova
Prunus eremophila	Mojave Desert plum	Rosaceae	perennial deciduous shrub	Mar-Apr	None	None	G2	S2	1B.2	SB_CalBG/RSABG		Mojavean desert scrub	Granitic (sometimes), Washes (usually)	975	1175	3200	3855	Yes	2004-01-01	No Photo Available
Fritillaria gentneri	Gentner's fritillary	Liliaceae	perennial bulbiferous herb	Apr-May	FE	None	G2	S1	1B.1			Chaparral, Cismontane woodland, Lower montane coniferous forest	Serpentine (sometimes)	1005	2970	3295	9745		2004-01-01	© 2013 Scot Loring
Arctostaphylos catalinae	Santa Catalina Island manzanita	Ericaceae	perennial evergreen shrub	(Feb)Mar-Apr(May)	None	None	G2?	S2?	1B.2	IUCN_VU; SB_CalBG/RSABG	Grazing, Non-native animal impacts	Chaparral (volcanic)		75	600	245	1970	Yes	1974-01-01	© 2020 Zoya Akulova
Arctostaphylos confertiflora	Santa Rosa Island manzanita	Ericaceae	perennial evergreen shrub	Feb-Apr	FE	None	G2	S2	1B.2	SB_CalBG/RSABG; SB_SBBG; SB_USDA	Erosion/runoff	Broadleafed upland forest, Chaparral, Closed-cone coniferous forest	Rocky, Sandstone	40	500	130	1640	Yes	1974-01-01	© 2006 Steve Matson
Arctostaphylos cruzensis	Arroyo de la Cruz manzanita	Ericaceae	perennial evergreen shrub	Dec-Mar	None	None	G1G2	S1S2	1B.2	BLM_S; SB_SBBG; USFS_S	Foot traffic/trampling, Grazing, Other, Wood cutting or brush clearing	Broadleafed upland forest, Chaparral, Closed-cone coniferous forest, Coastal bluff scrub, Coastal scrub, Valley and foothill grassland	Sandy	60	310	195	1015	Yes	1974-01-01	© 2006 Steve Matson
Arctostaphylos densiflora	Vine Hill manzanita	Ericaceae	perennial evergreen shrub	Feb-Apr	None	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_UCBG	Agriculture, Disease, Road/trail construction/maint.	Chaparral (acid marine sand)		50	120	165	395	Yes	1974-01-01	© 2006 Steve Matson
Arctostaphylos edmundsii	Little Sur manzanita	Ericaceae	perennial evergreen shrub	(May)Nov-Apr	None	None	G2	S2	1B.2	SB_UCSC; USFS_S	Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Road/trail construction/maint.	Chaparral, Coastal bluff scrub	Sandy	10	105	35	345	Yes	1974-01-01	© 2006 Steve Matson
Arctostaphylos glutinosa	Schreiber's manzanita	Ericaceae	perennial evergreen shrub	Mar-Apr(Nov)	None	None	G1	S1	1B.2	SB_CalBG/RSABG; SB_UCSC; SB_USDA	Development, Logging, Road/trail construction/maint.	Chaparral, Closed-cone coniferous forest		170	685	560	2245	Yes	1974-01-01	© 2011 Neal Kramer
Arctostaphylos morroensis	Morro manzanita	Ericaceae	perennial evergreen shrub	Dec-Mar	FT	None	G1	S1	1B.1	SB_UCSC	Development, Non-native plant impacts, ORV activity, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (maritime), Cismontane woodland, Coastal dunes (pre-Flandrian), Coastal scrub		5	205	15	675	Yes	1974-01-01	© 2012 Jean Pawek
Arctostaphylos myrtifolia	Ione manzanita	Ericaceae	perennial evergreen shrub	Nov-Mar	FT	None	G1	S1	1B.2	SB_UCBG	Agriculture, Development, Disease, Grazing, Mining, ORV activity, Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland	Acidic, Clay (sometimes), Sandy (sometimes)	60	580	195	1905	Yes	1974-01-01	© 2006 Steve Matson
Arctostaphylos nissenana	Nissenan manzanita	Ericaceae	perennial evergreen shrub	Feb-Mar	None	None	G1	S1	1B.2	BLM_S; USFS_S	Agriculture, Biocides, Development, Disease, Improper burning regime, Logging, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Closed-cone coniferous forest	Rocky	450	1100	1475	3610	Yes	1974-01-01	No Photo Available
Arctostaphylos otayensis	Otay manzanita	Ericaceae	perennial evergreen shrub	Jan-Apr	None	None	G1	S1	1B.2	BLM_S; SB_CalBG/RSABG; SB_CRES	Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland		275	1700	900	5580	Yes	1974-01-01	No Photo Available
Arctostaphylos pajaroensis	Pajaro manzanita	Ericaceae	perennial evergreen shrub	Dec-Mar	None	None	G1	S1	1B.1	BLM_S; SB_UCSC	Agriculture, Development, Disease, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral (sandy)		30	760	100	2495	Yes	1974-01-01	No Photo Available
Arctostaphylos pallida	pallid manzanita	Ericaceae	perennial evergreen shrub	Dec-Mar	FT	CE	G1	S1	1B.1	SB_CalBG/RSABG	Biocides, Development, Disease, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Broadleafed upland forest, Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub	Gravelly (sometimes), Sandy (sometimes)	185	465	605	1525	Yes	1974-01-01	No Photo Available
Arctostaphylos pechoensis	Pecho manzanita	Ericaceae	perennial evergreen shrub	Nov-Mar	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG		Chaparral, Closed-cone coniferous forest, Coastal scrub		125	850	410	2790	Yes	1974-01-01	No Photo Available
Arctostaphylos pilosula	Santa Margarita manzanita	Ericaceae	perennial evergreen shrub	Dec-May	None	None	G2?	S2?	1B.2	BLM_S; SB_SBBG; USFS_S	Agriculture, Dam/Inundation, Development, Erosion/runoff, Grazing, Hybridization, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Broadleafed upland forest, Chaparral, Cismontane woodland, Closed-cone coniferous forest	Sandstone (sometimes)	75	1100	245	3610	Yes	1974-01-01	No Photo Available
Arctostaphylos pumila	sandmat manzanita	Ericaceae	perennial evergreen shrub	Feb-May	None	None	G1	S1	1B.2	BLM_S; SB_SBBG	Biocides, Development, Disease, Non-native plant impacts, ORV activity, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral (maritime), Cismontane woodland, Closed-cone coniferous forest, Coastal dunes, Coastal scrub	Openings, Sandy	3	205	10	675	Yes	1974-01-01	No Photo Available
Arctostaphylos purissima	La Purisima manzanita	Ericaceae	perennial evergreen shrub	Nov-May	None	None	G2	S2	1B.1	SB_CalBG/RSABG; SB_USDA	Development, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, Military operations, Non-native plant impacts, Other, Road/trail construction/maint.	Chaparral (sandy), Coastal scrub		60	390	195	1280	Yes	1988-01-01	No Photo Available
Arctostaphylos silvicola	Bonny Doon manzanita	Ericaceae	perennial evergreen shrub	Jan-Mar	None	None	G1	S1	1B.2	SB_CalBG/RSABG	Development, Erosion/runoff, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Closed-cone coniferous forest, Lower montane coniferous forest		120	600	395	1970	Yes	1974-01-01	No Photo Available
Calochortus obispoensis	San Luis mariposa-lily	Liliaceae	perennial bulbiferous herb	May-Jul	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_SBBG; USFS_S	Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland	Serpentine (often)	50	730	165	2395	Yes	1974-01-01	No Photo Available
Calochortus pulchellus	Mt. Diablo fairy-lantern	Liliaceae	perennial bulbiferous herb	Apr-Jun	None	None	G2	S2	1B.2	SB_CalBG/RSABG	Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Riparian woodland, Valley and foothill grassland		30	840	100	2755	Yes	1974-01-01	No Photo Available
Calochortus raichei	Cedars fairy-lantern	Liliaceae	perennial bulbiferous herb	May-Aug	None	None	G2	S2	1B.2	BLM_S; SB_UCSC	Road/trail construction/maint.	Chaparral, Closed-cone coniferous forest	Serpentine	200	490	655	1610	Yes	1988-01-01	No Photo Available
Calochortus simulans	La Panza mariposa-lily	Liliaceae	perennial bulbiferous herb	Apr-Jun	None	None	G2	S2	1B.3	BLM_S; SB_CRES; SB_SBBG; USFS_S	Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland	Granitic (often), Sandy, Serpentine (sometimes)	325	1150	1065	3775	Yes	1980-01-01	© 2011 Aaron E. Sims
Calochortus tiburonensis	Tiburon mariposa-lily	Liliaceae	perennial bulbiferous herb	Mar-Jun	FT	CT	G1	S1	1B.1	SB_UCBG	Foot traffic/trampling, Non-native plant impacts	Valley and foothill grassland (serpentinite)		50	150	165	490	Yes	1974-01-01	No Photo Available
Calyptridium pulchellum	Mariposa pussypaws	Montiaceae	annual herb	Apr-Aug	FT	None	G1	S1	1B.1		Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland	Granitic, Gravelly (sometimes), Sandy (sometimes)	400	1100	1310	3610	Yes	1980-01-01	No Photo Available
Acanthomintha ilicifolia	San Diego thorn-mint	Lamiaceae	annual herb	Apr-Jun	FT	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_CRES	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Coastal scrub, Valley and foothill grassland, Vernal pools	Clay, Openings	10	960	35	3150		1974-01-01	© 2013 Keir Morse
Acanthomintha duttonii	San Mateo thorn-mint	Lamiaceae	annual herb	Apr-Jun	FE	CE	G1	S1	1B.1	SB_UCBG	Altered flood/tidal/hydrologic regime, Development, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Valley and foothill grassland	Serpentine	50	300	165	985	Yes	1974-01-01	© 2011 Aaron Schusteff
Agave shawii var. shawii	Shaw's agave	Agavaceae	perennial leaf	Sep-May	None	None	G2G3T2T3	S1	2B.1	IUCN_EN; SB_CalBG/RSABG; SB_SBBG	Development, Erosion/runoff, Foot traffic/trampling, Military operations, Non-native plant impacts, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Coastal bluff scrub, Coastal scrub		3	120	10	395		1974-01-01	©2017 Keir Morse
Agrostis blasdalei	Blasdale's bent grass	Poaceae	perennial rhizomatous herb	May-Jul	None	None	G2G3	S2	1B.2	BLM_S; SB_UCSC	Agriculture, Altered flood/tidal/hydrologic regime, Development, Disease, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint.	Coastal bluff scrub, Coastal dunes, Coastal prairie		0	150	0	490	Yes	1974-01-01	© 2001 Doreen L. Smith
Agrostis hooveri	Hoover's bent grass	Poaceae	perennial herb	Apr-Jul	None	None	G2	S2	1B.2	BLM_S; SB_SBBG; USFS_S	Development, Grazing, Mining, Non-native plant impacts, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Cismontane woodland, Closed-cone coniferous forest, Valley and foothill grassland	Sandy (usually)	6	610	20	2000	Yes	1974-01-01	2017 Adonis (Don) Tate
Allium munzii	Munz's onion	Alliaceae	perennial bulbiferous herb	Mar-May	FE	CT	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Coastal scrub, Pinyon and juniper woodland, Valley and foothill grassland	Clay, Mesic	297	1070	975	3510	Yes	1980-01-01	© 2003 Guy Bruyea
Allium sharsmithiae	Sharsmith's onion	Alliaceae	perennial bulbiferous herb	Mar-May	None	None	G2	S2	1B.3	BLM_S	Feral pigs, Mining, Over-collecting/poaching, Road/trail construction/maint.	Chaparral, Cismontane woodland	Rocky, Serpentine	400	1200	1310	3935	Yes	1980-01-01	© 2017 John Doyen
Allium hickmanii	Hickman's onion	Alliaceae	perennial bulbiferous herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_SBBG; USFS_S	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Military operations, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral (maritime), Closed-cone coniferous forest, Coastal prairie, Coastal scrub, Valley and foothill grassland		5	200	15	655	Yes	1974-01-01	© 2017 Dylan Neubauer
Allium tuolumnense	Rawhide Hill onion	Alliaceae	perennial bulbiferous herb	Mar-May	None	None	G2	S2	1B.2	BLM_S	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Cismontane woodland (serpentinite)		300	600	985	1970	Yes	1980-01-01	© 2010 Steven Perry
Allium shevockii	Spanish Needle onion	Alliaceae	perennial bulbiferous herb	May-Jun	None	None	G2	S2	1B.3	BLM_S; SB_CalBG/RSABG	Development, Grazing, Other, Recreational use (non-ORV), Road/trail construction/maint.	Pinyon and juniper woodland, Upper montane coniferous forest	Rocky	850	2500	2790	8205	Yes	1988-01-01	© 2009 Aaron Schusteff
Allium tribracteatum	three-bracted onion	Alliaceae	perennial bulbiferous herb	Apr-Aug	None	None	G2	S2	1B.2	SB_SBBG; USFS_S	Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Lower montane coniferous forest, Upper montane coniferous forest	Volcanic	1100	3000	3610	9845	Yes	1988-01-01	© 2018 Sierra Pacific Industries
Ambrosia chenopodiifolia	San Diego bur-sage	Asteraceae	perennial shrub	Apr-Jun	None	None	G2G3	S1	2B.1	SB_CalBG/RSABG; SB_CRES	Agriculture, Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Coastal scrub		55	155	180	510		1974-01-01	© 2020 Keir Morse
Arctostaphylos imbricata	San Bruno Mountain manzanita	Ericaceae	perennial evergreen shrub	Feb-May	None	CE	G1	S1	1B.1		ORV activity, Other	Chaparral, Coastal scrub	Rocky	275	370	900	1215	Yes	1974-01-01	© 2013 Robert Sikora
Arctostaphylos klamathensis	Klamath manzanita	Ericaceae	perennial evergreen shrub	May-Aug	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Biocides, Improper burning regime, Logging, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (montane), Lower montane coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest	Gabbroic (sometimes), Rocky, Serpentine (sometimes)	1370	2250	4495	7380	Yes	1984-01-01	©2014 Dean Wm. Taylor
Arctostaphylos luciana	Santa Lucia manzanita	Ericaceae	perennial evergreen shrub	Dec-Mar	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_UCSC; USFS_S		Chaparral, Cismontane woodland	Shale	350	850	1150	2790	Yes	1974-01-01	© 2011 David Graber
Arctostaphylos montaraensis	Montara manzanita	Ericaceae	perennial evergreen shrub	Jan-Mar	None	None	G1	S1	1B.2	SB_CalBG/RSABG; SB_USDA	Erosion/runoff, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (maritime), Coastal scrub		80	500	260	1640	Yes	1974-01-01	© 2016 Neal Kramer
Arctostaphylos montereyensis	Toro manzanita	Ericaceae	perennial evergreen shrub	Feb-Mar	None	None	G2?	S2?	1B.2	BLM_S; SB_SBBG	Development, Non-native plant impacts	Chaparral (maritime), Cismontane woodland, Coastal scrub	Sandy	30	730	100	2395	Yes	1974-01-01	© 2018 Susan McDougall
Arctostaphylos virgata	Marin manzanita	Ericaceae	perennial evergreen shrub	Jan-Mar	None	None	G2	S2	1B.2	SB_CalBG/RSABG; SB_USDA	Erosion/runoff, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing	Broadleafed upland forest, Chaparral, Closed-cone coniferous forest, North Coast coniferous forest	Granitic (sometimes), Sandstone (sometimes)	60	700	195	2295	Yes	1974-01-01	No Photo Available
Calochortus excavatus	Inyo County star-tulip	Liliaceae	perennial bulbiferous herb	Apr-Jul	None	None	G2	S2	1B.1	BLM_S; SB_SBBG; USFS_S	Grazing, Groundwater pumping, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chenopod scrub, Meadows and seeps	Alkaline, Mesic	1150	2000	3775	6560	Yes	1974-01-01	No Photo Available
Calystegia stebbinsii	Stebbins' morning-glory	Convolvulaceae	perennial rhizomatous herb	Apr-Jul	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Biocides, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Landfill, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral (openings), Cismontane woodland	Gabbroic (sometimes), Seeps (sometimes)	185	1090	605	3575	Yes	1980-01-01	No Photo Available
Camissonia benitensis	San Benito evening-primrose	Onagraceae	annual herb	Apr-Jun	FD	None	G2	S2	1B.1	BLM_S; SB_SBBG; SB_UCBG	Altered flood/tidal/hydrologic regime, Development, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland, Valley and foothill grassland	Carbonate (sometimes), Gravelly (sometimes), Serpentine	600	1280	1970	4200	Yes	1974-01-01	© 2005 David A Tharp
Deinandra conjugens	Otay tarplant	Asteraceae	annual herb	(Apr)May-Jun	FT	CE	G1G2	S1	1B.1	SB_CalBG/RSABG; SB_CRES	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Coastal scrub, Valley and foothill grassland	Clay	25	300	80	985		1974-01-01	No Photo Available
Carpenteria californica	tree-anemone	Hydrangeaceae	perennial evergreen shrub	(Apr)May-Jul	None	CT	G1G2	S1S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_UCBG; USFS_S	Dam/Inundation, Development, Grazing, Improper burning regime, Logging, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland	Granitic (usually)	340	1340	1115	4395	Yes	1974-01-01	No Photo Available
Clarkia franciscana	Presidio clarkia	Onagraceae	annual herb	May-Jul	FE	CE	G1	S1	1B.1	SB_UCBG	Development, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Coastal scrub, Valley and foothill grassland (serpentinite)		25	335	80	1100	Yes	1974-01-01	No Photo Available
Clarkia jolonensis	Jolon clarkia	Onagraceae	annual herb	Apr-Jun	None	None	G2	S2	1B.2	SB_SBBG; USFS_S	Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Road/trail construction/maint.	Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland		20	660	65	2165	Yes	1980-01-01	No Photo Available
Clarkia lingulata	Merced clarkia	Onagraceae	annual herb	May-Jun	None	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_UCBG; USFS_S	Biocides, Erosion/runoff, Grazing, Non-native plant impacts, Road/trail construction/maint.	Chaparral, Cismontane woodland		400	455	1310	1495	Yes	1974-01-01	No Photo Available
Clarkia mosquinii	Mosquin's clarkia	Onagraceae	annual herb	May-Jul(Sep)	None	None	G2	S2	1B.1	BLM_S; SB_CalBG/RSABG; USFS_S	Biocides, Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Cismontane woodland, Lower montane coniferous forest	Roadsides, Rocky	185	1490	605	4890	Yes	1980-01-01	© 2002 Dean Wm Taylor
Clarkia rostrata	beaked clarkia	Onagraceae	annual herb	Apr-May	None	None	G2G3	S2S3	1B.3	BLM_S; SB_CalBG/RSABG; SB_UCBG	Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint.	Cismontane woodland, Valley and foothill grassland		60	500	195	1640	Yes	1974-01-01	No Photo Available
Clarkia springvillensis	Springville clarkia	Onagraceae	annual herb	(Mar)Apr-Jul	FT	CE	G2	S2	1B.2	SB_UCSC	Biocides, Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Valley and foothill grassland	Granitic	245	1220	805	4005	Yes	1980-01-01	No Photo Available
Dudleya blochmaniae ssp. insularis	Santa Rosa Island dudleya	Crassulaceae	perennial herb	Mar-Apr	None	None	G2T1	S1	1B.1			Coastal bluff scrub		3	10	10	35	Yes	1974-01-01	No Photo Available
Boechera peirsonii	San Bernardino rockcress	Brassicaceae	perennial herb	Mar-Aug	None	None	G1	S1	1B.2	SB_CalBG/RSABG; USFS_S	Erosion/runoff, Foot traffic/trampling, Over-collecting/poaching, Recreational use (non-ORV)	Subalpine coniferous forest (rocky)		2700	3200	8860	10500	Yes	1980-01-01	No Photo Available
Boechera constancei	Constance's rockcress	Brassicaceae	perennial herb	May-Jul	None	None	G2	S2	1B.1	USFS_S	Biocides, Disease, Erosion/runoff, Improper burning regime, Logging, Mining, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Lower montane coniferous forest, Upper montane coniferous forest	Rocky, Serpentine	975	2025	3200	6645	Yes	1974-01-01	No Photo Available
Boechera hoffmannii	Hoffmann's rockcress	Brassicaceae	perennial herb	Feb-Apr	FE	None	G1G2	S1S2	1B.1	SB_CalBG/RSABG; SB_SBBG	Erosion/runoff, Grazing, Non-native plant impacts	Chaparral, Coastal bluff scrub, Coastal scrub	Rocky, Sandy, Volcanic	60	395	195	1295	Yes	1974-01-01	No Photo Available
Boechera johnstonii	Johnston's rockcress	Brassicaceae	perennial herb	Feb-Jun	None	None	G1	S1	1B.2	SB_CalBG/RSABG; USFS_S	Development, Foot traffic/trampling, Grazing, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Lower montane coniferous forest	Clay	1350	2150	4430	7055	Yes	1974-01-01	No Photo Available
Boechera parishii	Parish's rockcress	Brassicaceae	perennial herb	Apr-May	None	None	G2	S2	1B.2	SB_CalBG/RSABG; USFS_S	Development, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Pebble (Pavement) plain, Pinyon and juniper woodland, Upper montane coniferous forest	Carbonate (sometimes), Rocky	1770	2990	5805	9810	Yes	1974-01-01	No Photo Available
Arctostaphylos auriculata	Mt. Diablo manzanita	Ericaceae	perennial evergreen shrub	Jan-Mar	None	None	G2	S2	1B.3	SB_UCSC	Biocides, Development, Grazing, Improper burning regime, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral (sandstone), Cismontane woodland		135	650	445	2135	Yes	1974-01-01	© 2006 Steve Matson
Arctostaphylos bakeri ssp. bakeri	Baker's manzanita	Ericaceae	perennial evergreen shrub	Feb-Apr	None	CR	G2T1	S1	1B.1	SB_UCSC	Development, Grazing, Non-native plant impacts, Road/trail construction/maint., Vandalism/dumping/litter	Broadleafed upland forest, Chaparral	Serpentine (often)	75	300	245	985	Yes	1974-01-01	© 2004 David Graber
Extriplex joaquinana	San Joaquin spearscale	Chenopodiaceae	annual herb	Apr-Oct	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Agriculture, Biocides, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Waterway bank protection/maintenance	Chenopod scrub, Meadows and seeps, Playas, Valley and foothill grassland	Alkaline	1	835	5	2740	Yes	1988-01-01	No Photo Available
Ceanothus maritimus	maritime ceanothus	Rhamnaceae	perennial evergreen shrub	Jan-Apr	None	CR	G2	S2	1B.2	SB_CalBG/RSABG	Development, Foot traffic/trampling, Grazing	Chaparral (maritime), Coastal bluff scrub, Valley and foothill grassland	Clay	10	150	35	490	Yes	1974-01-01	No Photo Available
Ceanothus masonii	Mason's ceanothus	Rhamnaceae	perennial evergreen shrub	Mar-Apr	None	CR	G1	S1	1B.2	SB_CalBG/RSABG; SB_USDA	Grazing, Improper burning regime, Other, Road/trail construction/maint.	Chaparral (openings, rocky, serpentinite)		230	500	755	1640	Yes	1974-01-01	No Photo Available
Ceanothus purpureus	holly-leaved ceanothus	Rhamnaceae	perennial evergreen shrub	Feb-Jun	None	None	G2	S2	1B.2	SB_SBBG	Agriculture, Development, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Cismontane woodland	Rocky, Volcanic	120	640	395	2100	Yes	1974-01-01	© 2012 Jake Ruygt
Ceanothus roderickii	Pine Hill ceanothus	Rhamnaceae	perennial evergreen shrub	Apr-Jun	FE	CR	G1	S1	1B.1	SB_CalBG/RSABG; SB_SBBG	Development, Erosion/runoff, Improper burning regime, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland	Gabbroic (sometimes), Serpentine (sometimes)	245	1090	805	3575	Yes	1974-01-01	No Photo Available
Ceanothus sonomensis	Sonoma ceanothus	Rhamnaceae	perennial evergreen shrub	Feb-Apr	None	None	G2	S2	1B.2	SB_SBBG	Development, Improper burning regime, Other, Road/trail construction/maint.	Chaparral (sandy, serpentinite, volcanic)		215	800	705	2625	Yes	1974-01-01	No Photo Available
Ceanothus verrucosus	wart-stemmed ceanothus	Rhamnaceae	perennial evergreen shrub	Dec-May	None	None	G2G3	S2?	2B.2	SB_CalBG/RSABG; SB_CRES; SB_UCBG	Agriculture, Dam/Inundation, Development, Foot traffic/trampling, Improper burning regime, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Coastal scrub		1	380	5	1245		1974-01-01	© Rick York and CNPS
Delphinium recurvatum	recurved larkspur	Ranunculaceae	perennial herb	Mar-Jun	None	None	G2?	S2	1B.2	BLM_S; SB_SBBG	Agriculture, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Chenopod scrub, Cismontane woodland, Valley and foothill grassland	Alkaline	3	790	10	2590	Yes	1988-01-01	No Photo Available
Helianthella castanea	Diablo helianthella	Asteraceae	perennial herb	Mar-Jun	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Broadleafed upland forest, Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland, Valley and foothill grassland	Rocky (usually)	60	1300	195	4265	Yes	1974-01-01	© 2013 Christopher Bronny
Limnanthes vinculans	Sebastopol meadowfoam	Limnanthaceae	annual herb	Apr-May	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_UCBG	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Erosion/runoff, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing	Meadows and seeps, Valley and foothill grassland, Vernal pools	Vernally Mesic	15	305	50	1000	Yes	1974-01-01	© 2015 Vernon Smith
Linanthus bellus	desert beauty	Polemoniaceae	annual herb	Apr-May	None	None	G2G3	S2	2B.1	SB_CRES	Development, Grazing, Landfill, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Chaparral (sandy)		1000	1400	3280	4595		1974-01-01	No Photo Available
Linanthus concinnus	San Gabriel linanthus	Polemoniaceae	annual herb	Apr-Jul	None	None	G2	S2	1B.2	SB_CalBG/RSABG; USFS_S	Development, Foot traffic/trampling, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Lower montane coniferous forest, Upper montane coniferous forest	Openings, Rocky	1520	2800	4985	9185	Yes	1974-01-01	© 2019 RT Hawke
Diplacus pictus	calico monkeyflower	Phrymaceae	annual herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Road/trail construction/maint.	Broadleafed upland forest, Cismontane woodland	Disturbed areas, Granitic	100	1430	330	4690	Yes	1974-01-01	© 2020 Matt C. Berger
Diplacus pulchellus	yellow-lip pansy monkeyflower	Phrymaceae	annual herb	Apr-Jul	None	None	G2	S2	1B.2	BLM_S; SB_SBBG; USFS_S	Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Lower montane coniferous forest, Meadows and seeps	Clay, Disturbed areas (often), Vernally Mesic	600	2000	1970	6560	Yes	1974-01-01	© 2018 Sierra Pacific Industries
Erythranthe purpurea	little purple monkeyflower	Phrymaceae	annual herb	May-Jun	None	None	G2	S2	1B.2	SB_CalBG/RSABG; USFS_S	Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Meadows and seeps, Pebble (Pavement) plain, Upper montane coniferous forest		1900	2300	6235	7545		1974-01-01	No Photo Available
Erythranthe shevockii	Kelso Creek monkeyflower	Phrymaceae	annual herb	Mar-May	None	None	G1	S1	1B.1	BLM_S; SB_CalBG/RSABG; USFS_S	Agriculture, Development, Erosion/runoff, Grazing, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Joshua tree "woodland", Pinyon and juniper woodland	Granitic (sometimes), Gravelly (sometimes), Metamorphic (sometimes), Sandy (sometimes)	800	1340	2625	4395	Yes	1984-01-01	© 2021 Ryan O'Dell
Arenaria paludicola	marsh sandwort	Caryophyllaceae	perennial stoloniferous herb	May-Aug	FE	CE	G1	S1	1B.1	SB_SBBG	Altered flood/tidal/hydrologic regime, Degraded water quality, Development, Feral pigs, Non-native plant impacts, ORV activity, Other, Pollution, Surface water diversion, Vandalism/dumping/litter	Marshes and swamps (brackish, freshwater)	Openings, Sandy	3	170	10	560		1984-01-01	No Photo Available
Eremogone ursina	Big Bear Valley sandwort	Caryophyllaceae	perennial herb	May-Aug	FT	None	G1	S1	1B.2	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Meadows and seeps, Pebble (Pavement) plain, Pinyon and juniper woodland	Mesic, Rocky	1800	2900	5905	9515	Yes	1974-01-01	No Photo Available
Ravenella exigua	chaparral harebell	Campanulaceae	annual herb	May-Jun	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Development, Erosion/runoff, Grazing, Mining, Non-native plant impacts, Road/trail construction/maint.	Chaparral (rocky, usually serpentinite)		275	1250	900	4100	Yes	1974-01-01	No Photo Available
Ravenella sharsmithiae	Sharsmith's harebell	Campanulaceae	annual herb	Apr-Jun	None	None	G1G2	S1S2	1B.2	BLM_S		Chaparral (rocky, serpentinite)		490	855	1610	2805	Yes	1984-01-01	No Photo Available
Cusickiella quadricostata	Bodie Hills cusickiella	Brassicaceae	perennial herb	May-Jul	None	None	G2	S2	1B.2	BLM_S; SB_SBBG	Erosion/runoff, Foot traffic/trampling, Grazing, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Great Basin scrub, Pinyon and juniper woodland	Clay (sometimes), Rocky (sometimes)	2000	2800	6560	9185		1974-01-01	No Photo Available
Symphyotrichum lentum	Suisun Marsh aster	Asteraceae	perennial rhizomatous herb	(Apr)May-Nov	None	None	G2	S2	1B.2	SB_CalBG/RSABG; SB_USDA	Biocides, Development, Erosion/runoff, Foot traffic/trampling, Military operations, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Waterway bank protection/maintenance	Marshes and swamps (brackish, freshwater)		0	3	0	10	Yes	1974-01-01	No Photo Available
Astragalus agnicidus	Humboldt County milk-vetch	Fabaceae	perennial herb	(Mar)Apr-Sep	None	CE	G2	S2	1B.1	BLM_S; SB_BerrySB; SB_CalBG/RSABG	Biocides, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Broadleafed upland forest, North Coast coniferous forest	Disturbed areas, Openings, Roadsides (sometimes)	120	800	395	2625	Yes	1974-01-01	©2004 Dean Wm. Taylor
Astragalus albens	Cushenbury milk-vetch	Fabaceae	perennial herb	Mar-Jun	FE	None	G1	S1	1B.1	SB_CalBG/RSABG	Development, Foot traffic/trampling, Grazing, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland	Carbonate (usually), Granitic (rarely)	1095	2000	3595	6560	Yes	1974-01-01	No Photo Available
Astragalus brauntonii	Braunton's milk-vetch	Fabaceae	perennial herb	Jan-Aug	FE	None	G2	S2	1B.1	SB_CalBG/RSABG; SB_SBBG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Coastal scrub, Valley and foothill grassland	Burned areas (sometimes), Carbonate, Disturbed areas (sometimes), Sandstone (usually)	4	640	15	2100	Yes	1974-01-01	© 2009 Thomas Stoughton
Astragalus claranus	Clara Hunt's milk-vetch	Fabaceae	annual herb	Mar-May	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Development, Feral pigs, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter	Chaparral (openings), Cismontane woodland, Valley and foothill grassland	Clay, Rocky, Serpentine (sometimes), Volcanic (sometimes)	75	275	245	900	Yes	1974-01-01	No Photo Available
Astragalus deanei	Dean's milk-vetch	Fabaceae	perennial herb	Feb-May	None	None	G1	S1	1B.1	BLM_S; USFS_S	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland, Coastal scrub, Riparian forest		75	695	245	2280	Yes	1974-01-01	No Photo Available
Astragalus ertterae	Walker Pass milk-vetch	Fabaceae	perennial herb	Apr-May	None	None	G2	S2	1B.3	BLM_S; SB_CalBG/RSABG; USFS_S	Foot traffic/trampling, Grazing, Recreational use (non-ORV), Road/trail construction/maint.	Pinyon and juniper woodland (granitic, sandy)		1705	1900	5595	6235	Yes	1988-01-01	No Photo Available
Astragalus funereus	black milk-vetch	Fabaceae	perennial herb	Mar-May	None	None	G2	S2	1B.2	BLM_S		Mojavean desert scrub (sometimes carbonate, clay, gravelly, rocky)		1280	2100	4200	6890		1980-01-01	No Photo Available
Astragalus gilmanii	Gilman's milk-vetch	Fabaceae	perennial herb	May-Aug	None	None	G2	S2	1B.2	SB_CalBG/RSABG	Foot traffic/trampling, Road/trail construction/maint.	Great Basin scrub, Pinyon and juniper woodland	Gravelly (sometimes), Rocky (sometimes)	2000	3050	6560	10005		1974-01-01	No Photo Available
Astragalus jaegerianus	Lane Mountain milk-vetch	Fabaceae	perennial herb	Apr-Jun	FE	None	G2	S2	1B.1	SB_CalBG/RSABG	Development, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter	Joshua tree "woodland", Mojavean desert scrub	Granitic, Gravelly (sometimes), Sandy (sometimes)	900	1200	2955	3935	Yes	1974-01-01	No Photo Available
Astragalus lentiformis	lens-pod milk-vetch	Fabaceae	perennial herb	May-Jul	None	None	G2	S2	1B.2	BLM_S; USFS_S	Dam/Inundation, Development, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Great Basin scrub, Lower montane coniferous forest	Sandy, Volcanic	1460	1910	4790	6265	Yes	1974-01-01	No Photo Available
Astragalus leucolobus	Big Bear Valley woollypod	Fabaceae	perennial herb	May-Jul	None	None	G2	S2	1B.2	BLM_S; IUCN_VU; SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Lower montane coniferous forest, Pebble (Pavement) plain, Pinyon and juniper woodland, Upper montane coniferous forest	Rocky	1100	2885	3610	9465	Yes	1974-01-01	No Photo Available
Astragalus oocarpus	San Diego milk-vetch	Fabaceae	perennial herb	May-Aug	None	None	G2?	S2?	1B.2	BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S	Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral (openings), Cismontane woodland		305	1524	1000	5000	Yes	1974-01-01	No Photo Available
Astragalus pseudiodanthus	Tonopah milk-vetch	Fabaceae	perennial herb	May-Jun	None	None	G2Q	S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_SBBG	Grazing, Road/trail construction/maint.	Great Basin scrub (stabilized dunes)		2025	2075	6645	6810		1980-01-01	No Photo Available
Astragalus anxius	Ash Valley milk-vetch	Fabaceae	perennial herb	May-Jul	None	None	G1	S2	1B.3	BLM_S; SB_UCSC; USFS_S	Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Great Basin scrub, Pinyon and juniper woodland, Upper montane coniferous forest	Volcanic	1550	1645	5085	5395	Yes	1984-01-01	No Photo Available
Astragalus tener var. titi	coastal dunes milk-vetch	Fabaceae	annual herb	Mar-May	FE	CE	G2T1	S1	1B.1	SB_CalBG/RSABG	Development, Foot traffic/trampling, Military operations, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint.	Coastal bluff scrub (sandy), Coastal dunes, Coastal prairie (mesic)	Mesic (often), Vernally Mesic (often)	1	50	5	165	Yes	1974-01-01	No Photo Available
Astragalus tricarinatus	triple-ribbed milk-vetch	Fabaceae	perennial herb	Feb-May	FE	None	G2	S2	1B.2	SB_CalBG/RSABG	Foot traffic/trampling, Grazing, ORV activity, Road/trail construction/maint.	Joshua tree "woodland", Sonoran desert scrub	Gravelly (sometimes), Sandy (sometimes)	450	1190	1475	3905	Yes	1974-01-01	No Photo Available
Astragalus webberi	Webber's milk-vetch	Fabaceae	perennial herb	May-Jul	None	None	G1	S1	1B.2	BLM_S; SB_UCSC; USFS_S	Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Broadleafed upland forest, Lower montane coniferous forest, Meadows and seeps		731	1250	2400	4100	Yes	1974-01-01	No Photo Available
Balsamorhiza macrolepis	big-scale balsamroot	Asteraceae	perennial herb	Mar-Jun	None	None	G2	S2	1B.2	BLM_S; USFS_S	Development, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Valley and foothill grassland	Serpentine (sometimes)	45	1555	150	5100	Yes	1974-01-01	©1998 Dean Wm. Taylor
Bergerocactus emoryi	golden-spined cereus	Cactaceae	perennial stem	May-Jun	None	None	G2G3	S2	2B.2	IUCN_LC; SB_CalBG/RSABG	Development, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Chaparral, Closed-cone coniferous forest, Coastal scrub	Sandy	3	395	10	1295		1974-01-01	No Photo Available
Blennosperma bakeri	Sonoma sunshine	Asteraceae	annual herb	Mar-May	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Erosion/runoff, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Valley and foothill grassland (mesic), Vernal pools		10	110	35	360	Yes	1974-01-01	No Photo Available
Brodiaea filifolia	thread-leaved brodiaea	Themidaceae	perennial bulbiferous herb	Mar-Jun	FT	CE	G2	S2	1B.1	SB_CalBG/RSABG; SB_CRES	Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Hybridization, Improper burning regime, Landfill, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Waterway bank protection/maintenance, Wood cutting or brush clearing	Chaparral (openings), Cismontane woodland, Coastal scrub, Playas, Valley and foothill grassland, Vernal pools	Clay (often)	25	1120	80	3675	Yes	1974-01-01	© 2016 Keir Morse
Brodiaea insignis	Kaweah brodiaea	Themidaceae	perennial bulbiferous herb	Apr-Jun	None	CE	G1	S1	1B.2	BLM_S; SB_SBBG; USFS_S	Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Other, Road/trail construction/maint.	Cismontane woodland, Meadows and seeps, Valley and foothill grassland	Clay (sometimes), Granitic (sometimes)	150	1400	490	4595	Yes	1974-01-01	© 2007 Robert E. Preston, Ph.D.
Brodiaea kinkiensis	San Clemente Island brodiaea	Themidaceae	perennial bulbiferous herb	May-Jun	None	None	G2	S2	1B.2	SB_CalBG/RSABG; SB_CRES		Valley and foothill grassland (clay)		305	600	1000	1970	Yes	1974-01-01	© 2011 Neal Kramer
Brodiaea orcuttii	Orcutt's brodiaea	Themidaceae	perennial bulbiferous herb	May-Jul	None	None	G2	S2	1B.1	BLM_S; SB_CRES; USFS_S	Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Closed-cone coniferous forest, Meadows and seeps, Valley and foothill grassland, Vernal pools	Clay, Mesic	30	1692	100	5550	Yes	1974-01-01	© 2001 Ellen Friedman & Ted Dunning
Brodiaea pallida	Chinese Camp brodiaea	Themidaceae	perennial bulbiferous herb	May-Jun	FT	CE	G1	S1	1B.1	IUCN_EN	Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Grazing, Road/trail construction/maint.	Cismontane woodland, Valley and foothill grassland	Serpentine (often)	165	385	540	1265	Yes	1974-01-01	© 2014 Robert E. Preston, Ph.D.
Clinopodium chandleri	San Miguel savory	Lamiaceae	perennial shrub	Mar-Jul	None	None	G2G3	S2	1B.2	BLM_S; SB_CRES; USFS_S	Biocides, Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland, Valley and foothill grassland	Gabbroic (sometimes), Rocky (sometimes)	120	1075	395	3525		1974-01-01	No Photo Available
Camissoniopsis hardhamiae	Hardham's evening-primrose	Onagraceae	annual herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; USFS_S	Biocides, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Chaparral, Cismontane woodland	Burned areas (sometimes), Carbonate, Disturbed areas (sometimes), Sandy	140	945	460	3100	Yes	1980-01-01	No Photo Available
Camissonia integrifolia	Kern River evening-primrose	Onagraceae	annual herb	(Apr)May	None	None	G2	S2	1B.3	BLM_S	Foot traffic/trampling, Road/trail construction/maint.	Chaparral, Mojavean desert scrub	Openings, Sandy	700	1200	2295	3935	Yes	1980-01-01	© 2015 John Game
Dudleya brevifolia	short-leaved dudleya	Crassulaceae	perennial herb	Apr-May	None	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_CRES	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral (maritime, openings), Coastal scrub	Sandstone	30	250	100	820	Yes	1980-01-01	No Photo Available
Dudleya densiflora	San Gabriel Mountains dudleya	Crassulaceae	perennial herb	Mar-Jul	None	None	G2	S2	1B.1	SB_CalBG/RSABG; USFS_S	Improper burning regime, Mining, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland, Coastal scrub, Lower montane coniferous forest, Riparian woodland	Granitic	244	610	800	2000	Yes	1974-01-01	No Photo Available
Dudleya multicaulis	many-stemmed dudleya	Crassulaceae	perennial herb	Apr-Jul	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; USFS_S	Agriculture, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Coastal scrub, Valley and foothill grassland	Clay (often)	15	790	50	2590	Yes	1974-01-01	No Photo Available
Dudleya nesiotica	Santa Cruz Island dudleya	Crassulaceae	perennial herb	Apr-Jun	FD	CR	G1	S1	1B.1	SB_CalBG/RSABG; SB_SBBG	Erosion/runoff, Non-native plant impacts, Road/trail construction/maint.	Coastal bluff scrub, Coastal scrub	Clay, Gravelly (sometimes), Rocky (sometimes)	10	50	35	165	Yes	1974-01-01	No Photo Available
Dudleya parva	Conejo dudleya	Crassulaceae	perennial herb	May-Jun	FT	None	G1	S1	1B.2	SB_CalBG/RSABG	Agriculture, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Recreational use (non-ORV)	Coastal scrub, Valley and foothill grassland	Clay (sometimes), Gravelly (sometimes), Rocky (sometimes), Volcanic (sometimes)	60	450	195	1475	Yes	1974-01-01	No Photo Available
Hesperolinon adenophyllum	glandular western flax	Linaceae	annual herb	May-Aug	None	None	G2G3	S2S3	1B.2	BLM_S	Biocides, Development, Erosion/runoff, Grazing, Logging, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland, Valley and foothill grassland	Serpentine (usually)	150	1315	490	4315	Yes	1974-01-01	© 2002 John Game
Hesperolinon bicarpellatum	two-carpellate western flax	Linaceae	annual herb	(Apr)May-Jul	None	None	G2	S2	1B.2	BLM_S; SB_UCSC	Development, Erosion/runoff, Grazing, Other, Road/trail construction/maint.	Chaparral (serpentinite)		60	1005	195	3295	Yes	1974-01-01	© 2016 John Doyen
Hesperolinon breweri	Brewer's western flax	Linaceae	annual herb	May-Jul	None	None	G2	S2	1B.2	BLM_S	Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland, Valley and foothill grassland	Serpentine (usually)	30	945	100	3100	Yes	1974-01-01	© 2014 Neal Kramer
Hesperolinon congestum	Marin western flax	Linaceae	annual herb	Apr-Jul	FT	CT	G1	S1	1B.1	SB_CalBG/RSABG; SB_UCBG	Biocides, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Valley and foothill grassland	Serpentine	5	370	15	1215	Yes	1974-01-01	© 2009 Neal Kramer
Hesperolinon didymocarpum	Lake County western flax	Linaceae	annual herb	May-Jul	None	CE	G1	S1	1B.2	BLM_S; SB_UCSC	Dam/Inundation, Erosion/runoff, Grazing, Other, Recreational use (non-ORV)	Chaparral, Cismontane woodland, Valley and foothill grassland	Serpentine	330	365	1085	1200	Yes	1974-01-01	© 2018 Aaron Arthur
Hesperolinon drymarioides	drymaria-like western flax	Linaceae	annual herb	May-Aug	None	None	G2	S2	1B.2	BLM_S; USFS_S	Development, Mining, ORV activity, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Cismontane woodland, Closed-cone coniferous forest, Valley and foothill grassland	Serpentine	100	1130	330	3710	Yes	1974-01-01	© Niall McCarten and CNPS
Lomatium congdonii	Congdon's lomatium	Apiaceae	perennial herb	Mar-Jun	None	None	G2	S2	1B.2	BLM_S; SB_SBBG	Biocides, Erosion/runoff, Grazing, Mining, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland	Serpentine	300	2100	985	6890	Yes	1974-01-01	No Photo Available
Castilleja gleasoni	Mt. Gleason paintbrush	Orobanchaceae	perennial herb (hemiparasitic)	May-Jun(Sep)	None	CR	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; USFS_S	Development, Foot traffic/trampling, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Lower montane coniferous forest, Pinyon and juniper woodland	Granitic	1160	2170	3805	7120	Yes	1974-01-01	No Photo Available
Castilleja mendocinensis	Mendocino Coast paintbrush	Orobanchaceae	perennial herb (hemiparasitic)	Apr-Aug	None	None	G2	S2	1B.2	BLM_S; SB_UCSC	Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Closed-cone coniferous forest, Coastal bluff scrub, Coastal dunes, Coastal prairie, Coastal scrub		0	160	0	525		1974-01-01	©2015 John Doyen
Castilleja mollis	soft-leaved paintbrush	Orobanchaceae	perennial herb (hemiparasitic)	Apr-Aug	FE	None	G2	S2	1B.1	SB_SBBG		Coastal bluff scrub, Coastal dunes		5	20	15	65	Yes	1974-01-01	No Photo Available
Caulanthus californicus	California jewelflower	Brassicaceae	annual herb	Feb-May	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_SBBG; SB_UCBG	Agriculture, Development, Grazing, Insufficient population/stand size, Mining, Non-native plant impacts, Other	Chenopod scrub, Pinyon and juniper woodland, Valley and foothill grassland	Sandy	61	1000	200	3280	Yes	1984-01-01	No Photo Available
Hesperidanthus jaegeri	Jaeger's hesperidanthus	Brassicaceae	perennial herb	May-Jul	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; USFS_S	Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Recreational use (non-ORV)	Great Basin scrub, Pinyon and juniper woodland, Subalpine coniferous forest	Carbonate, Rocky	2135	2800	7005	9185	Yes	1974-01-01	© 2011 Steve Matson
Ceanothus confusus	Rincon Ridge ceanothus	Rhamnaceae	perennial evergreen shrub	Feb-Jun	None	None	G1	S1	1B.1	BLM_S; SB_SBBG	Agriculture, Development, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Cismontane woodland, Closed-cone coniferous forest	Serpentine (sometimes), Volcanic (sometimes)	75	1065	245	3495	Yes	1980-01-01	© 2012 Jake Ruygt
Ceanothus cyaneus	Lakeside ceanothus	Rhamnaceae	perennial evergreen shrub	Apr-Jun	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S	Development, Erosion/runoff, Non-native plant impacts, Road/trail construction/maint.	Chaparral, Closed-cone coniferous forest		235	755	770	2475		1974-01-01	No Photo Available
Ceanothus divergens	Calistoga ceanothus	Rhamnaceae	perennial evergreen shrub	Feb-Apr	None	None	G2	S2	1B.2	BLM_S; SB_UCSC	Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (rocky, serpentinite, volcanic)		170	950	560	3115	Yes	1974-01-01	No Photo Available
Ceanothus ferrisiae	Coyote ceanothus	Rhamnaceae	perennial evergreen shrub	Jan-May	FE	None	G1	S1	1B.1	SB_CalBG/RSABG; SB_SBBG	Development, Grazing, Improper burning regime	Chaparral, Coastal scrub, Valley and foothill grassland	Serpentine	120	460	395	1510	Yes	1974-01-01	No Photo Available
Ceanothus hearstiorum	Hearsts' ceanothus	Rhamnaceae	perennial evergreen shrub	Mar-Apr	None	CR	G1G2	S1S2	1B.2		Development, Foot traffic/trampling, Grazing, Improper burning regime, Other	Chaparral (maritime), Coastal prairie, Coastal scrub		75	245	245	805	Yes	1974-01-01	No Photo Available
Aristocapsa insignis	Indian Valley spineflower	Polygonaceae	annual herb	May-Sep	None	None	G1	S1	1B.2	BLM_S	Dam/Inundation	Cismontane woodland (sandy)		300	600	985	1970	Yes	1980-01-01	No Photo Available
Dodecahema leptoceras	slender-horned spineflower	Polygonaceae	annual herb	Apr-Jun	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland, Coastal scrub (alluvial fans)	Sandy	200	760	655	2495	Yes	1980-01-01	No Photo Available
Cercocarpus traskiae	Catalina Island mountain-mahogany	Rosaceae	perennial evergreen shrub	Mar-May	FE	CE	G1	S1	1B.1	IUCN_CR; SB_CalBG/RSABG; SB_CRES	Erosion/runoff, Grazing, Hybridization, Insufficient population/stand size, Other	Chaparral, Coastal scrub	Gabbroic, Rocky	100	250	330	820	Yes	1974-01-01	© 2021 Zoya Akulova
Chaenactis suffrutescens	Shasta chaenactis	Asteraceae	perennial herb	May-Sep	None	None	G2G3	S2S3	1B.3	BLM_S; SB_BerrySB; USFS_S	Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Lower montane coniferous forest, Upper montane coniferous forest	Sandy, Serpentine	750	2800	2460	9185		1974-01-01	© 2015 Steve Matson
Euphorbia hooveri	Hoover's spurge	Euphorbiaceae	annual herb	(May-Jun)Jul-Sep(Oct)	FT	None	G1	S1	1B.2		Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Surface water diversion	Vernal pools		25	250	80	820	Yes	1974-01-01	© 2020 Neal Kramer
Hooveria purpurea var. purpurea	Santa Lucia purple amole	Agavaceae	perennial bulbiferous herb	Apr-Jun	FT	None	G2T2	S2	1B.1	SB_SBBG	Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Chaparral, Cismontane woodland, Valley and foothill grassland	Clay, Gravelly	205	385	675	1265	Yes	1974-01-01	© 2006 Aaron Schusteff
Hooveria purpurea var. reducta	Camatta Canyon amole	Agavaceae	perennial bulbiferous herb	Apr-May	FT	CR	G2T1	S1	1B.1	SB_SBBG	Agriculture, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Cismontane woodland, Valley and foothill grassland		305	630	1000	2065	Yes	1974-01-01	© 2017 John B Moule
Chorizanthe blakleyi	Blakley's spineflower	Polygonaceae	annual herb	Apr-Jun	None	None	G2	S2	1B.3	BLM_S; USFS_S	Foot traffic/trampling, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Pinyon and juniper woodland		600	1600	1970	5250	Yes	1974-01-01	No Photo Available
Chorizanthe howellii	Howell's spineflower	Polygonaceae	annual herb	May-Jul	FE	CT	G1	S1	1B.2		Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Coastal dunes, Coastal prairie, Coastal scrub	Disturbed areas (often), Sandy	0	45	0	150	Yes	1980-01-01	No Photo Available
Chorizanthe orcuttiana	Orcutt's spineflower	Polygonaceae	annual herb	Mar-May	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral (maritime), Closed-cone coniferous forest, Coastal scrub	Openings, Sandy	3	125	10	410	Yes	1980-01-01	No Photo Available
Chorizanthe pungens var. pungens	Monterey spineflower	Polygonaceae	annual herb	Apr-Jun(Jul-Aug)	FT	None	G2T2	S2	1B.2	SB_SBBG; SB_UCBG	Agriculture, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (maritime), Cismontane woodland, Coastal dunes, Coastal scrub, Valley and foothill grassland	Sandy	3	450	10	1475	Yes	1980-01-01	No Photo Available
Chorizanthe rectispina	straight-awned spineflower	Polygonaceae	annual herb	Apr-Jul	None	None	G2	S2	1B.2	BLM_S; SB_SBBG; USFS_S	Agriculture, Biocides, Development, Disking, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Cismontane woodland, Coastal scrub		85	1035	280	3395	Yes	1974-01-01	© 1982 California Native Plant Society
Chorizanthe robusta var. robusta	robust spineflower	Polygonaceae	annual herb	Apr-Sep	FE	None	G2T1	S1	1B.1		Development, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (maritime), Cismontane woodland (openings), Coastal dunes, Coastal scrub	Gravelly (sometimes), Sandy (sometimes)	3	300	10	985	Yes	1980-01-01	No Photo Available
Cirsium fontinale var. campylon	Mt. Hamilton thistle	Asteraceae	perennial herb	(Feb)Apr-Oct	None	None	G2T2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Waterway bank protection/maintenance, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Valley and foothill grassland	Seeps, Serpentine	100	890	330	2920	Yes	1974-01-01	No Photo Available
Cirsium crassicaule	slough thistle	Asteraceae	annual/perennial herb	May-Aug	None	None	G1	S1	1B.1	BLM_S	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Grazing, Improper burning regime, Non-native plant impacts, Road/trail construction/maint., Surface water diversion, Waterway bank protection/maintenance	Chenopod scrub, Marshes and swamps (sloughs), Riparian scrub		3	100	10	330	Yes	1974-01-01	No Photo Available
Cirsium fontinale var. fontinale	fountain thistle	Asteraceae	perennial herb	(Apr)May-Oct	FE	CE	G2T1	S1	1B.1	SB_CalBG/RSABG	Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Hybridization, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral (openings), Cismontane woodland, Meadows and seeps, Valley and foothill grassland	Seeps, Serpentine	45	175	150	575	Yes	1974-01-01	No Photo Available
Cirsium fontinale var. obispoense	Chorro Creek bog thistle	Asteraceae	perennial herb	Feb-Jul(Aug-Sep)	FE	CE	G2T2	S2	1B.2	SB_CalBG/RSABG; SB_SBBG	Agriculture, Biocides, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, Other, Road/trail construction/maint., Surface water diversion	Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland	Seeps, Serpentine	35	385	115	1265	Yes	1974-01-01	No Photo Available
Cirsium hydrophilum var. vaseyi	Mt. Tamalpais thistle	Asteraceae	perennial herb	May-Aug	None	None	G2T1	S1	1B.2	SB_CalBG/RSABG	Development, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint.	Broadleafed upland forest, Chaparral, Meadows and seeps	Seeps, Serpentine	240	620	785	2035	Yes	1974-01-01	No Photo Available
Cirsium rhothophilum	surf thistle	Asteraceae	perennial herb	Apr-Jun	None	CT	G1	S1	1B.2	BLM_S; SB_SBBG	Development, Feral pigs, Foot traffic/trampling, Grazing, Insufficient population/stand size, Military operations, Mining, Non-native plant impacts, ORV activity, Other	Coastal bluff scrub, Coastal dunes		3	60	10	195	Yes	1974-01-01	No Photo Available
Clarkia australis	Small's southern clarkia	Onagraceae	annual herb	May-Aug	None	None	G2	S2	1B.2	BLM_S; USFS_S	Biocides, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Other, Road/trail construction/maint., Wood cutting or brush clearing	Cismontane woodland, Lower montane coniferous forest		800	2075	2625	6810	Yes	1980-01-01	No Photo Available
Claytonia peirsonii ssp. peirsonii	Peirson's spring beauty	Montiaceae	perennial herb	(Mar)May-Jun	None	None	G2G3T2	S2	1B.2	SB_CalBG/RSABG; USFS_S	Development, Foot traffic/trampling, Grazing, Other, Recreational use (non-ORV), Road/trail construction/maint.	Subalpine coniferous forest, Upper montane coniferous forest	Granitic, Metamorphic, Scree, Talus	1510	2745	4955	9005	Yes	1974-01-01	No Photo Available
Collinsia multicolor	San Francisco collinsia	Plantaginaceae	annual herb	(Feb)Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_UCSC	Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint.	Closed-cone coniferous forest, Coastal scrub	Serpentine (sometimes)	30	275	100	900	Yes	1974-01-01	No Photo Available
Chloropyron palmatum	palmate-bracted bird's-beak	Orobanchaceae	annual herb (hemiparasitic)	May-Oct	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Chenopod scrub, Valley and foothill grassland	Alkaline	5	155	15	510	Yes	1974-01-01	No Photo Available
Leptosyne hamiltonii	Mt. Hamilton coreopsis	Asteraceae	annual herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_UCBG	Erosion/runoff, Feral pigs, Grazing, Non-native plant impacts, Vandalism/dumping/litter	Cismontane woodland (rocky)		550	1300	1805	4265	Yes	1974-01-01	©2012 Aaron Schusteff
Leptosyne maritima	sea dahlia	Asteraceae	perennial herb	Mar-May	None	None	G2	S1S2	2B.2	SB_CalBG/RSABG; SB_CRES	Development, Erosion/runoff, Foot traffic/trampling, Military operations, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Coastal bluff scrub, Coastal scrub		5	150	15	490		1974-01-01	No Photo Available
Croton wigginsii	Wiggins' croton	Euphorbiaceae	perennial shrub	Mar-May	None	CR	G2G3	S2	2B.2	BLM_S; SB_CalBG/RSABG	Development, Non-native plant impacts, ORV activity, Other	Desert dunes, Sonoran desert scrub (sandy)		50	100	165	330		1974-01-01	No Photo Available
Cryptantha crinita	silky cryptantha	Boraginaceae	annual herb	Apr-May	None	None	G2	S2	1B.2	BLM_S; USFS_S	Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Waterway bank protection/maintenance	Cismontane woodland, Lower montane coniferous forest, Riparian forest, Riparian woodland, Valley and foothill grassland	Gravelly	61	1215	200	3985	Yes	1980-01-01	©2009 Sierra Pacific Industries
Cryptantha excavata	deep-scarred cryptantha	Boraginaceae	annual herb	Apr-May	None	None	G1	S1	1B.1	BLM_S		Cismontane woodland (gravelly, sandy)		100	500	330	1640	Yes	1974-01-01	No Photo Available
Cryptantha ganderi	Gander's cryptantha	Boraginaceae	annual herb	Feb-May	None	None	G2G3	S1	1B.1	BLM_S; SB_CalBG/RSABG; SB_UCSC	Agriculture, Development, Non-native plant impacts, ORV activity	Desert dunes, Sonoran desert scrub (sandy)		160	400	525	1310		1974-01-01	No Photo Available
Cryptantha mariposae	Mariposa cryptantha	Boraginaceae	annual herb	Apr-Jun	None	None	G2G3	S2S3	1B.3	BLM_S	Mining	Chaparral (rocky, serpentinite)		200	650	655	2135	Yes	1974-01-01	No Photo Available
Cryptantha traskiae	Trask's cryptantha	Boraginaceae	annual herb	Mar-Jun	None	None	G2	S2	1B.1	SB_CalBG/RSABG	Non-native plant impacts	Coastal bluff scrub, Coastal dunes, Coastal scrub		15	400	50	1310	Yes	1974-01-01	No Photo Available
Cymopterus deserticola	desert cymopterus	Apiaceae	perennial herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Development, Foot traffic/trampling, Grazing, Military operations, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Joshua tree "woodland", Mojavean desert scrub	Sandy	630	1500	2065	4920	Yes	1974-01-01	No Photo Available
Delphinium bakeri	Baker's larkspur	Ranunculaceae	perennial herb	Mar-May	FE	CE	G1	S1	1B.1	SB_UCBG	Agriculture, Biocides, Grazing, Non-native plant impacts, Other, Over-collecting/poaching, Road/trail construction/maint., Wood cutting or brush clearing	Broadleafed upland forest, Coastal scrub, Valley and foothill grassland	Mesic (often), Shale	80	305	260	1000	Yes	1974-01-01	No Photo Available
Delphinium hutchinsoniae	Hutchinson's larkspur	Ranunculaceae	perennial herb	Mar-Jun	None	None	G2	S2	1B.2	SB_UCSC; USFS_S	Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, Other, Over-collecting/poaching, Road/trail construction/maint.	Broadleafed upland forest, Chaparral, Coastal prairie, Coastal scrub		0	427	0	1400	Yes	1974-01-01	No Photo Available
Delphinium luteum	golden larkspur	Ranunculaceae	perennial herb	Mar-May	FE	CR	G1	S1	1B.1	SB_UCBG	Agriculture, Development, Erosion/runoff, Grazing, Improper burning regime, Non-native plant impacts, Other, Road/trail construction/maint.	Chaparral, Coastal prairie, Coastal scrub	Rocky	0	100	0	330	Yes	1974-01-01	No Photo Available
Dirca occidentalis	western leatherwood	Thymelaeaceae	perennial deciduous shrub	Jan-Mar(Apr)	None	None	G2	S2	1B.2	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Insufficient population/stand size, Logging, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Waterway bank protection/maintenance, Wood cutting or brush clearing	Broadleafed upland forest, Chaparral, Cismontane woodland, Closed-cone coniferous forest, North Coast coniferous forest, Riparian forest, Riparian woodland	Mesic	25	425	80	1395	Yes	1974-01-01	© 2017 Steve Matson
Dissanthelium californicum	California dissanthelium	Poaceae	annual herb	Mar-May	None	None	G2	S1	1B.2	SB_CalBG/RSABG	Non-native animal impacts, Non-native plant impacts	Coastal scrub		5	500	15	1640	Yes	1974-01-01	No Photo Available
Dithyrea maritima	beach spectaclepod	Brassicaceae	perennial rhizomatous herb	Mar-May	None	CT	G1	S1	1B.1	BLM_S; SB_SBBG	Erosion/runoff, Feral pigs, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV)	Coastal dunes, Coastal scrub (sandy)		3	50	10	165		1980-01-01	No Photo Available
Dudleya stolonifera	Laguna Beach dudleya	Crassulaceae	perennial stoloniferous herb	May-Jul	FT	CT	G1	S1	1B.1	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Hybridization, Improper burning regime, Non-native plant impacts, Other, Over-collecting/poaching, Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland	Rocky	10	260	35	855	Yes	1974-01-01	No Photo Available
Dudleya traskiae	Santa Barbara Island dudleya	Crassulaceae	perennial herb	Feb-Jul	FE	CE	G1	S1	1B.2	SB_SBBG	Erosion/runoff	Coastal bluff scrub, Coastal scrub	Rocky	30	110	100	360	Yes	1974-01-01	No Photo Available
Dudleya variegata	variegated dudleya	Crassulaceae	perennial herb	Apr-Jun	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_CRES	Agriculture, Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland, Vernal pools	Clay	3	580	10	1905		1974-01-01	No Photo Available
Dudleya verityi	Verity's dudleya	Crassulaceae	perennial herb	May-Jun	FT	None	G1	S1	1B.1	SB_CalBG/RSABG	Improper burning regime, Insufficient population/stand size, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland, Coastal scrub	Rocky, Volcanic	60	120	195	395	Yes	1984-01-01	© 2015 Adam Searcy
Dudleya viscida	sticky dudleya	Crassulaceae	perennial herb	May-Jun	None	None	G2	S2	1B.2	BLM_S; SB_CRES; USFS_S	Biocides, Dam/Inundation, Development, Military operations, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland, Coastal bluff scrub, Coastal scrub	Rocky	10	550	35	1805	Yes	1974-01-01	No Photo Available
Enceliopsis covillei	Panamint daisy	Asteraceae	perennial herb	Mar-Jun	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Erosion/runoff, Mining, Non-native animal impacts, ORV activity, Other, Over-collecting/poaching	Mojavean desert scrub (subalkaline)		400	1830	1310	6005	Yes	1974-01-01	© 2013 Sheryl Creer
Eriastrum brandegeeae	Brandegee's eriastrum	Polemoniaceae	annual herb	Apr-Aug	None	None	G1Q	S1	1B.1	BLM_S	Development, Non-native plant impacts, ORV activity, Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland	Sandy, Volcanic	425	840	1395	2755	Yes	1974-01-01	No Photo Available
Eriastrum luteum	yellow-flowered eriastrum	Polemoniaceae	annual herb	May-Jun	None	None	G2	S2	1B.2	BLM_S; USFS_S	Dam/Inundation, Development, Erosion/runoff, Grazing, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Broadleafed upland forest, Chaparral, Cismontane woodland	Gravelly (sometimes), Sandy (sometimes)	290	1000	950	3280	Yes	1974-01-01	No Photo Available
Harmonia guggolziorum	Guggolz's harmonia	Asteraceae	annual herb	Apr-May	None	None	G1	S1	1B.1	SB_UCSC	Agriculture, Development, Grazing, Non-native plant impacts, Road/trail construction/maint.	Chaparral (openings, serpentinite)		160	195	525	640	Yes	2004-01-01	© 2019 Steve Matson
Collinsia antonina	San Antonio collinsia	Plantaginaceae	annual herb	Mar-May	None	None	G2	S2	1B.2	BLM_S	Foot traffic/trampling, Grazing, Other	Chaparral, Cismontane woodland		280	365	920	1200	Yes	1974-01-01	No Photo Available
Erigeron parishii	Parish's daisy	Asteraceae	perennial herb	May-Aug	FT	None	G2	S2	1B.1	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Mojavean desert scrub, Pinyon and juniper woodland	Carbonate (usually), Granitic (sometimes)	800	2000	2625	6560	Yes	1974-01-01	No Photo Available
Erigeron supplex	supple daisy	Asteraceae	perennial herb	May-Jul	None	None	G2	S2	1B.2	BLM_S; SB_UCBG	Development, Grazing, Logging, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Coastal bluff scrub, Coastal prairie		10	50	35	165	Yes	1974-01-01	No Photo Available
Eriodictyon altissimum	Indian Knob mountainbalm	Namaceae	perennial evergreen shrub	Mar-Jun	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_USDA	Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (maritime), Cismontane woodland, Coastal scrub	Sandstone	80	270	260	885	Yes	1974-01-01	No Photo Available
Eriodictyon capitatum	Lompoc yerba santa	Namaceae	perennial evergreen shrub	May-Sep	FE	CR	G2	S2	1B.2	SB_CalBG/RSABG; SB_SBBG; SB_USDA	Development, Erosion/runoff, Feral pigs, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Chaparral (maritime), Closed-cone coniferous forest, Coastal bluff scrub	Sandy	40	900	130	2955	Yes	1974-01-01	No Photo Available
Iris munzii	Munz's iris	Iridaceae	perennial rhizomatous herb	Mar-Apr(May)	None	None	G2	S2	1B.3	BLM_S; SB_CalBG/RSABG; USFS_S	Development, Other, Road/trail construction/maint.	Cismontane woodland		305	800	1000	2625	Yes	1974-01-01	© 2009 Irene Lindsey
Harmonia doris-nilesiae	Niles' harmonia	Asteraceae	annual herb	May-Jul	None	None	G2G3	S2S3	1B.1	BLM_S; SB_UCSC; USFS_S	Logging, Mining, Non-native plant impacts, Other, Road/trail construction/maint.	Chaparral, Cismontane woodland, Lower montane coniferous forest	Openings, Rocky, Serpentine (usually)	650	1660	2135	5445	Yes	1988-01-01	©2013 Julie Kierstead Nelson
Bloomeria clevelandii	San Diego goldenstar	Themidaceae	perennial bulbiferous herb	Apr-May	None	None	G2G3	S3	1B.1	BLM_S; SB_CalBG/RSABG; SB_CRES; SB_UCBG	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Improper burning regime, Landfill, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Coastal scrub, Valley and foothill grassland, Vernal pools	Clay	50	465	165	1525		1974-01-01	No Photo Available
Thelypodium howellii ssp. howellii	Howell's thelypodium	Brassicaceae	perennial herb	May-Jul	None	None	G1T1	S1	1B.2	BLM_S; SB_UCSC; USFS_S	Grazing, Other	Great Basin scrub, Meadows and seeps (alkaline)		1200	1830	3935	6005		2001-01-01	©1990 Dean Wm. Taylor
Pogogyne abramsii	San Diego mesa mint	Lamiaceae	annual herb	Mar-Jul	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_CRES	Altered flood/tidal/hydrologic regime, Development, Disking, Erosion/runoff, Foot traffic/trampling, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Vernal pools		90	200	295	655	Yes	1974-01-01	No Photo Available
Pogogyne clareana	Santa Lucia mint	Lamiaceae	annual herb	Apr-Jul	None	CE	G2	S2	1B.2	SB_SBBG	Grazing, Military operations, ORV activity, Road/trail construction/maint.	Chaparral, Cismontane woodland, Riparian woodland	Streambanks	300	630	985	2065	Yes	1974-01-01	No Photo Available
Pogogyne nudiuscula	Otay Mesa mint	Lamiaceae	annual herb	May-Jul	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Vernal pools		90	250	295	820		1974-01-01	No Photo Available
Thelypodium stenopetalum	slender-petaled thelypodium	Brassicaceae	perennial herb	May-Sep	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Meadows and seeps (mesic, alkaline)		1600	2500	5250	8205	Yes	1974-01-01	No Photo Available
Thermopsis macrophylla	Santa Ynez false lupine	Fabaceae	perennial rhizomatous herb	Apr-Jun	None	CR	G1	S1	1B.3	SB_CalBG/RSABG; SB_SBBG; USFS_S	Dam/Inundation, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (disturbed areas, granitic, sandy)		425	1400	1395	4595	Yes	1974-01-01	No Photo Available
Rhinotropis heterorhyncha	notch-beaked milkwort	Polygalaceae	perennial herb	Apr-May	None	None	G2	S2	2B.3			Mojavean desert scrub (alkaline)		900	1600	2955	5250		1994-01-01	No Photo Available
Lewisia congdonii	Congdon's lewisia	Montiaceae	perennial herb	Apr-Jun	None	CR	G2	S2	1B.3	SB_UCSC; USFS_S	Biocides, Erosion/runoff, Mining, Over-collecting/poaching, Road/trail construction/maint.	Chaparral, Cismontane woodland, Lower montane coniferous forest, Upper montane coniferous forest, Valley and foothill grassland	Granitic (sometimes), Mesic, Metamorphic (sometimes), Rocky	500	2800	1640	9185	Yes	1974-01-01	© 2010 Aaron Schusteff
Lewisia disepala	Yosemite lewisia	Montiaceae	perennial herb	Mar-Jun	None	None	G2	S2	1B.2	BLM_S; USFS_S	Development, Foot traffic/trampling, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Lower montane coniferous forest, Pinyon and juniper woodland, Upper montane coniferous forest	Granitic, Sandy	1035	3500	3395	11485	Yes	1974-01-01	© 2009 Steven Perry
Lewisia serrata	saw-toothed lewisia	Montiaceae	perennial herb	May-Jun	None	None	G1G2	S1S2	1B.1	USFS_S	Logging, Over-collecting/poaching, Road/trail construction/maint.	Broadleafed upland forest, Lower montane coniferous forest, Riparian forest	Mesic, Rocky, Slopes	770	1435	2525	4710	Yes	1980-01-01	© 2002 Steve Tyron
Erythranthe exigua	San Bernardino Mountains monkeyflower	Phrymaceae	annual herb	May-Jul	None	None	G2	S1S2	1B.2	SB_CalBG/RSABG; USFS_S	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Meadows and seeps, Pebble (Pavement) plain, Upper montane coniferous forest	Clay, Mesic	1800	2315	5905	7595		1974-01-01	No Photo Available
Erythranthe filicaulis	slender-stemmed monkeyflower	Phrymaceae	annual herb	Apr-Aug	None	None	G2	S2	1B.2	BLM_S; USFS_S	Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Cismontane woodland, Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest	Vernally Mesic	900	1750	2955	5740	Yes	1974-01-01	John Doyen, 2020
Phacelia anelsonii	Aven Nelson's phacelia	Hydrophyllaceae	annual herb	Apr-May	None	None	G2G3	S2	2B.3	SB_CalBG/RSABG		Joshua tree "woodland", Pinyon and juniper woodland	Carbonate, Gravelly (sometimes), Sandy (sometimes)	1200	1980	3935	6495		1980-01-01	No Photo Available
Salvia greatae	Orocopia sage	Lamiaceae	perennial evergreen shrub	Mar-Apr	None	None	G2G3	S2S3	1B.3	BLM_S; SB_CalBG/RSABG	Foot traffic/trampling, Military operations, ORV activity, Other, Recreational use (non-ORV)	Mojavean desert scrub, Sonoran desert scrub		-40	825	-130	2705	Yes	1974-01-01	No Photo Available
Salvia munzii	Munz's sage	Lamiaceae	perennial evergreen shrub	Feb-Apr	None	None	G2	S2	2B.2	SB_CalBG/RSABG; SB_CRES	Development, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Coastal scrub		115	1065	375	3495		1974-01-01	No Photo Available
Sanicula maritima	adobe sanicle	Apiaceae	perennial herb	Feb-May	None	CR	G2	S2	1B.1	SB_SBBG; USFS_S	Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Coastal prairie, Meadows and seeps, Valley and foothill grassland	Clay, Serpentine	30	240	100	785	Yes	1974-01-01	No Photo Available
Phacelia stellaris	Brand's star phacelia	Hydrophyllaceae	annual herb	Mar-Jun	None	None	G1	S1	1B.1	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV)	Coastal dunes, Coastal scrub		1	400	5	1310		1994-01-01	No Photo Available
Piperia yadonii	Yadon's rein orchid	Orchidaceae	perennial herb	(Feb)May-Aug	FE	None	G1	S1	1B.1		Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (maritime), Closed-cone coniferous forest, Coastal bluff scrub	Sandy	10	510	35	1675	Yes	1994-01-01	No Photo Available
Plagiobothrys salsus	desert popcornflower	Boraginaceae	annual herb	May-Aug	None	None	G2G3	S1	2B.2	SB_CalBG/RSABG	Grazing	Playas (alkaline)		700	700	2295	2295		1994-01-01	No Photo Available
Eriogonum crocatum	Conejo buckwheat	Polygonaceae	perennial herb	Apr-Jul	None	CR	G1	S1	1B.2	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Coastal scrub, Valley and foothill grassland	Rocky, Volcanic	50	580	165	1905	Yes	1974-01-01	No Photo Available
Eriogonum eastwoodianum	Eastwood's buckwheat	Polygonaceae	annual herb	May-Sep	None	None	G2	S2	1B.3	SB_SBBG		Cismontane woodland, Valley and foothill grassland	Clay, Sandy, Shale, Talus	200	1000	655	3280	Yes	1974-01-01	No Photo Available
Eriogonum kelloggii	Kellogg's buckwheat	Polygonaceae	perennial herb	(May)Jun-Aug	None	CE	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Mining, Road/trail construction/maint.	Lower montane coniferous forest (rocky, serpentinite)		579	1250	1900	4100	Yes	1974-01-01	No Photo Available
Eriogonum nortonii	Pinnacles buckwheat	Polygonaceae	annual herb	(Apr)Aug(Sep)May-Jun	None	None	G2	S2	1B.3	BLM_S	Development, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Valley and foothill grassland	Burned areas (often), Sandy	300	975	985	3200	Yes	1974-01-01	No Photo Available
Eriogonum temblorense	Temblor buckwheat	Polygonaceae	annual herb	(Apr)May-Sep	None	None	G2	S2	1B.2	BLM_S	Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts	Valley and foothill grassland (clay, sandstone)		300	1000	985	3280	Yes	1974-01-01	No Photo Available
Eriogonum truncatum	Mt. Diablo buckwheat	Polygonaceae	annual herb	Apr-Sep(Nov-Dec)	None	None	G1	S1	1B.1	SB_UCBG	Development, Non-native plant impacts	Chaparral, Coastal scrub, Valley and foothill grassland	Sandy	3	350	10	1150	Yes	1974-01-01	No Photo Available
Eriophyllum congdonii	Congdon's woolly sunflower	Asteraceae	annual herb	Apr-Jun	None	CR	G2	S2	1B.2	SB_UCSC; USFS_S	Agriculture, Biocides, Logging, Mining, Non-native plant impacts, Road/trail construction/maint.	Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland	Metamorphic, Rocky	500	1900	1640	6235	Yes	1974-01-01	No Photo Available
Eriophyllum latilobum	San Mateo woolly sunflower	Asteraceae	perennial herb	May-Jun	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing	Cismontane woodland (often roadsides), Coastal scrub, Lower montane coniferous forest		45	330	150	1085	Yes	1974-01-01	Neal Kramer
Eriophyllum mohavense	Barstow woolly sunflower	Asteraceae	annual herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_USDA	Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chenopod scrub, Mojavean desert scrub, Playas		500	960	1640	3150	Yes	1974-01-01	No Photo Available
Eriophyllum nubigenum	Yosemite woolly sunflower	Asteraceae	annual herb	May-Aug	None	None	G2	S2	1B.3	USFS_S	Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV)	Chaparral, Lower montane coniferous forest, Upper montane coniferous forest	Granitic, Gravelly	1525	2750	5005	9025	Yes	1974-01-01	No Photo Available
Eryngium constancei	Loch Lomond button-celery	Apiaceae	annual/perennial herb	Apr-Jun	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Development, Erosion/runoff, Logging, ORV activity, Road/trail construction/maint., Surface water diversion	Vernal pools		460	855	1510	2805	Yes	1980-01-01	No Photo Available
Eryngium pinnatisectum	Tuolumne button-celery	Apiaceae	annual/perennial herb	May-Aug	None	None	G2	S2	1B.2	SB_UCSC	Altered flood/tidal/hydrologic regime, Development, Grazing, Non-native plant impacts, Road/trail construction/maint.	Cismontane woodland, Lower montane coniferous forest, Vernal pools	Mesic	70	915	230	3000	Yes	1974-01-01	© 2007 Robert E. Preston, Ph.D.
Eryngium racemosum	Delta button-celery	Apiaceae	annual/perennial herb	(May)Jun-Oct	None	CE	G1	S1	1B.1		Agriculture, Altered flood/tidal/hydrologic regime, Disking, Erosion/runoff, Grazing, Groundwater pumping, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion	Riparian scrub (vernally mesic clay depressions)		3	30	10	100	Yes	1974-01-01	No Photo Available
Eryngium spinosepalum	spiny-sepaled button-celery	Apiaceae	annual/perennial herb	Apr-Jun	None	None	G2	S2	1B.2	BLM_S; SB_SBBG	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Waterway bank protection/maintenance	Valley and foothill grassland, Vernal pools		80	975	260	3200	Yes	1980-01-01	No Photo Available
Erysimum ammophilum	sand-loving wallflower	Brassicaceae	perennial herb	Feb-Jun(Jul-Aug)	None	None	G2	S2	1B.2	BLM_S; SB_CRES; SB_SBBG	Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral (maritime), Coastal dunes, Coastal scrub	Openings, Sandy	0	60	0	195	Yes	1974-01-01	No Photo Available
Erysimum teretifolium	Santa Cruz wallflower	Brassicaceae	perennial herb	Mar-Jul	FE	CE	G1	S1	1B.1	SB_UCSC	Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Lower montane coniferous forest		120	610	395	2000	Yes	1974-01-01	No Photo Available
Erythronium tuolumnense	Tuolumne fawn lily	Liliaceae	perennial bulbiferous herb	Mar-Jun	None	None	G2G3	S2S3	1B.2	BLM_S; SB_CalBG/RSABG; USFS_S	Agriculture, Biocides, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest		510	1365	1675	4480	Yes	1974-01-01	No Photo Available
Eschscholzia rhombipetala	diamond-petaled California poppy	Papaveraceae	annual herb	Mar-Apr	None	None	G1	S1	1B.1	BLM_S; SB_CalBG/RSABG; SB_UCBG	Agriculture, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Recreational use (non-ORV)	Valley and foothill grassland (alkaline, clay)		0	975	0	3200	Yes	1980-01-01	No Photo Available
Glossopetalon pungens	pungent glossopetalon	Crossosomataceae	perennial deciduous shrub	May-Jun	None	None	G2G3	S1	1B.2	BLM_S		Chaparral, Pinyon and juniper woodland	Carbonate	1675	2000	5495	6560		1974-01-01	© 2010 James M. Andre
Fremontodendron decumbens	Pine Hill flannelbush	Malvaceae	perennial evergreen shrub	Apr-Jul	FE	CR	G1	S1	1B.2	SB_CalBG/RSABG; SB_UCBG	Biocides, Development, Improper burning regime, Landfill, Logging, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Cismontane woodland	Gabbroic (sometimes), Rocky, Serpentine (sometimes)	425	760	1395	2495	Yes	1974-01-01	No Photo Available
Fremontodendron mexicanum	Mexican flannelbush	Malvaceae	perennial evergreen shrub	Mar-Jun	FE	CR	G2	S1	1B.1	SB_CalBG/RSABG; SB_CRES	Erosion/runoff, Foot traffic/trampling, Insufficient population/stand size, Non-native plant impacts, Other, Vandalism/dumping/litter	Chaparral, Cismontane woodland, Closed-cone coniferous forest	Gabbroic, Serpentine	10	716	35	2350		1974-01-01	No Photo Available
Fritillaria brandegeei	Greenhorn fritillary	Liliaceae	perennial bulbiferous herb	Apr-Jun	None	None	G2G3	S2S3	1B.3	BLM_S; SB_CalBG/RSABG; USFS_S	Foot traffic/trampling, Grazing, Logging, Other, Over-collecting/poaching, Recreational use (non-ORV), Wood cutting or brush clearing	Lower montane coniferous forest (granitic)		1330	2100	4365	6890	Yes	1974-01-01	© 2017 Aaron Schusteff
Fritillaria falcata	talus fritillary	Liliaceae	perennial bulbiferous herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; IUCN_EN; SB_CalBG/RSABG; SB_SBBG; USFS_S	Feral pigs, ORV activity, Other, Over-collecting/poaching, Road/trail construction/maint.	Chaparral, Cismontane woodland, Lower montane coniferous forest	Serpentine, Talus (often)	300	1525	985	5005	Yes	1974-01-01	© 2013 Aaron Schusteff
Fritillaria liliacea	fragrant fritillary	Liliaceae	perennial bulbiferous herb	Feb-Apr	None	None	G2	S2	1B.2	SB_CalBG/RSABG; USFS_S	Dam/Inundation, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint.	Cismontane woodland, Coastal prairie, Coastal scrub, Valley and foothill grassland	Serpentine (often)	3	410	10	1345	Yes	1974-01-01	© 2004 Carol W. Witham
Fritillaria pluriflora	adobe-lily	Liliaceae	perennial bulbiferous herb	Feb-Apr	None	None	G2G3	S2S3	1B.2	BLM_S; SB_CalBG/RSABG; SB_UCBG	Biocides, Dam/Inundation, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland, Valley and foothill grassland	Adobe (often)	60	705	195	2315	Yes	1974-01-01	© 2015 Steve Matson
Fritillaria roderickii	Roderick's fritillary	Liliaceae	perennial bulbiferous herb	Mar-May	None	CE	G1Q	S1	1B.1	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Road/trail construction/maint., Wood cutting or brush clearing	Coastal bluff scrub, Coastal prairie, Valley and foothill grassland		15	400	50	1310	Yes	1974-01-01	No Photo Available
Fritillaria striata	striped adobe-lily	Liliaceae	perennial bulbiferous herb	Feb-Apr	None	CT	G1	S1	1B.1	BLM_S; SB_CalBG/RSABG; SB_SBBG; SB_USDA; USFS_S	Agriculture, Development, Foot traffic/trampling, Grazing, Other, Road/trail construction/maint.	Cismontane woodland, Valley and foothill grassland	Clay (usually)	135	1455	445	4775	Yes	1974-01-01	© 2013 Aaron Schusteff
Fritillaria viridea	San Benito fritillary	Liliaceae	perennial bulbiferous herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_UCSC; USFS_S	Erosion/runoff, Feral pigs, Foot traffic/trampling, Military operations, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland	Roadsides (sometimes), Rocky (sometimes), Serpentine, Slopes, Streambanks (sometimes)	200	1525	655	5005	Yes	1974-01-01	© 2010 Aaron Schusteff
Galium buxifolium	box bedstraw	Rubiaceae	perennial deciduous shrub	Mar-Jul	FD	CR	G2G3	S2S3	1B.2	SB_SBBG	Erosion/runoff	Closed-cone coniferous forest, Coastal bluff scrub, Coastal scrub	Rocky	5	400	15	1310	Yes	1974-01-01	No Photo Available
Galium clementis	Santa Lucia bedstraw	Rubiaceae	perennial herb	(Apr)May-Jul	None	None	G2	S2	1B.3	USFS_S	Foot traffic/trampling, Non-native plant impacts	Lower montane coniferous forest, Upper montane coniferous forest	Granitic (sometimes), Rocky, Serpentine (sometimes)	1130	1780	3710	5840	Yes	1974-01-01	© 2005 Dean Wm. Taylor, Ph.D.
Galium grande	San Gabriel bedstraw	Rubiaceae	perennial deciduous shrub	Jan-Jul	None	None	G1	S1	1B.2	BLM_S; SB_CalBG/RSABG; USFS_S	ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest		425	1500	1395	4920	Yes	1984-01-01	© Lauramay Dempster and CNPS
Gentiana setigera	Mendocino gentian	Gentianaceae	perennial herb	(Apr-Jul)Aug-Sep	None	None	G2	S2	1B.2	BLM_S; USFS_S	Altered flood/tidal/hydrologic regime, Mining, ORV activity, Other, Road/trail construction/maint., Surface water diversion	Lower montane coniferous forest, Meadows and seeps	Mesic	335	1065	1100	3495		1980-01-01	©2008 Keir Morse
Linanthus maculatus ssp. maculatus	Little San Bernardino Mtns. linanthus	Polemoniaceae	annual herb	Mar-May	None	None	G2T2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Development, Foot traffic/trampling, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Desert dunes, Joshua tree "woodland", Mojavean desert scrub, Sonoran desert scrub	Sandy	140	1220	460	4005	Yes	1974-01-01	No Photo Available
Gilmania luteola	golden-carpet gilmania	Polygonaceae	annual herb	(Feb)Mar-Apr	None	None	G2G3	S2S3	1B.3	SB_CalBG/RSABG	Foot traffic/trampling, Road/trail construction/maint.	Chenopod scrub (alkaline barrens)		-15	610	-50	2000	Yes	1980-01-01	No Photo Available
Gratiola heterosepala	Boggs Lake hedge-hyssop	Plantaginaceae	annual herb	Apr-Aug	None	CE	G2	S2	1B.2	BLM_S	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Landfill, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Marshes and swamps (lake margins), Vernal pools	Clay	10	2375	35	7790		1974-01-01	©2004 Carol W. Witham
Grindelia hallii	San Diego gumplant	Asteraceae	perennial herb	May-Oct	None	None	G2	S2	1B.2	BLM_S; SB_CRES	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Lower montane coniferous forest, Meadows and seeps, Valley and foothill grassland		185	1745	605	5725	Yes	1974-01-01	© 2014 Keir Morse
Deinandra arida	Red Rock tarplant	Asteraceae	annual herb	Apr-Nov	None	CR	G1	S1	1B.2	BLM_S; SB_CalBG/RSABG	Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint.	Mojavean desert scrub (clay, volcanic tuff)		300	950	985	3115	Yes	1974-01-01	© 2012 Neal Kramer
Heuchera brevistaminea	Laguna Mountains alumroot	Saxifragaceae	perennial rhizomatous herb	Apr-Jul(Sep)	None	None	G2	S2	1B.3	BLM_S; SB_CRES	Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Non-native plant impacts, Vandalism/dumping/litter	Broadleafed upland forest, Chaparral, Cismontane woodland, Riparian forest	Rocky	1370	2000	4495	6560	Yes	1974-01-01	© 2019 Susan McDougall
Horkelia bolanderi	Bolander's horkelia	Rosaceae	perennial herb	(May)Jun-Aug	None	None	G1	S1	1B.2	BLM_S	Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, ORV activity, Road/trail construction/maint., Surface water diversion	Chaparral, Lower montane coniferous forest, Meadows and seeps, Valley and foothill grassland	Edges, Vernally Mesic	450	1100	1475	3610	Yes	1988-01-01	© 2012 Barry Rice
Horkelia marinensis	Point Reyes horkelia	Rosaceae	perennial herb	May-Sep	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; SB_UCSC	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Coastal dunes, Coastal prairie, Coastal scrub	Sandy	5	755	15	2475	Yes	1974-01-01	© 2017 John Doyen
Horkelia parryi	Parry's horkelia	Rosaceae	perennial herb	Apr-Sep	None	None	G2	S2	1B.2	BLM_S; USFS_S	Biocides, Erosion/runoff, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland		80	1070	260	3510	Yes	1974-01-01	© 2009 Barry Breckling
Horkelia tenuiloba	thin-lobed horkelia	Rosaceae	perennial herb	May-Jul(Aug)	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Agriculture, Biocides, Development, Disking, Foot traffic/trampling, Grazing, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint.	Broadleafed upland forest, Chaparral, Valley and foothill grassland	Mesic, Openings, Sandy	50	500	165	1640	Yes	1988-01-01	© 1994 Doreen L. Smith
Horkelia tularensis	Kern Plateau horkelia	Rosaceae	perennial herb	(May)Jun-Aug	None	None	G2	S2	1B.3	SB_CalBG/RSABG; USFS_S	Foot traffic/trampling, Grazing, Logging, ORV activity	Upper montane coniferous forest (rocky)		2255	2875	7400	9435	Yes	1974-01-01	© 2003 Christopher L. Christie
Horkelia wilderae	Barton Flats horkelia	Rosaceae	perennial herb	May-Sep	None	None	G1	S1	1B.1	SB_CalBG/RSABG; USFS_S	Development, Foot traffic/trampling, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral (edges), Lower montane coniferous forest, Upper montane coniferous forest		1675	2925	5495	9595	Yes	1974-01-01	© 2009 Thomas Stoughton
Ivesia paniculata	Ash Creek ivesia	Rosaceae	perennial herb	May-Aug	None	None	G2	S2	1B.2	BLM_S; SB_UCSC; USFS_S	Foot traffic/trampling, Grazing, Logging, Mining, ORV activity, Road/trail construction/maint., Wood cutting or brush clearing	Great Basin scrub, Pinyon and juniper woodland, Upper montane coniferous forest	Gravelly (sometimes), Rocky (sometimes), Volcanic	1500	1950	4920	6400	Yes	1980-01-01	© 2007 F. Gauna
Ivesia sericoleuca	Plumas ivesia	Rosaceae	perennial herb	May-Oct	None	None	G2	S2	1B.2	BLM_S; SB_UCSC; USFS_S	Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter	Great Basin scrub, Lower montane coniferous forest, Meadows and seeps, Vernal pools	Vernally Mesic, Volcanic (usually)	1310	2200	4300	7220	Yes	1974-01-01	© 2003 Steve Matson
Ivesia webberi	Webber's ivesia	Rosaceae	perennial herb	May-Jul	FT	None	G2	S1	1B.1	SB_CalBG/RSABG; USFS_S	Agriculture, Dam/Inundation, Development, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Great Basin scrub (volcanic ash), Lower montane coniferous forest, Pinyon and juniper woodland	Gravelly (sometimes), Sandy (sometimes)	1000	2075	3280	6810		1974-01-01	© 2007 Steve Matson
Juncus leiospermus var. ahartii	Ahart's dwarf rush	Juncaceae	annual herb	Mar-May	None	None	G2T1	S1	1B.2		Agriculture, Development, Grazing, Mining, ORV activity, Other, Road/trail construction/maint.	Valley and foothill grassland (mesic)		30	229	100	750	Yes	1984-01-01	© 2004 Carol W. Witham
Juncus leiospermus var. leiospermus	Red Bluff dwarf rush	Juncaceae	annual herb	Mar-Jun	None	None	G2T2	S2	1B.1	BLM_S; USFS_S	Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Foot traffic/trampling, Grazing, Logging, Mining, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Cismontane woodland, Meadows and seeps, Valley and foothill grassland, Vernal pools	Vernally Mesic	35	1250	115	4100	Yes	1974-01-01	©2016 Dylan Neubauer
Lasthenia burkei	Burke's goldfields	Asteraceae	annual herb	Apr-Jun	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_UCBG	Agriculture, Altered flood/tidal/hydrologic regime, Degraded water quality, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Pollution, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter	Meadows and seeps (mesic), Vernal pools		15	600	50	1970	Yes	1974-01-01	© 2015 Neal Kramer
Lasthenia conjugens	Contra Costa goldfields	Asteraceae	annual herb	Mar-Jun	FE	None	G1	S1	1B.1	SB_UCBG	Agriculture, Altered flood/tidal/hydrologic regime, Development, Disking, Erosion/runoff, Feral pigs, Grazing, Landfill, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Wood cutting or brush clearing	Cismontane woodland, Playas (alkaline), Valley and foothill grassland, Vernal pools	Mesic	0	470	0	1540	Yes	1974-01-01	© 2013 Neal Kramer
Lavatera assurgentiflora ssp. assurgentiflora	island mallow	Malvaceae	perennial evergreen shrub	Mar-Nov	None	None	G1T1	S1	1B.1	SB_SBBG		Coastal bluff scrub, Coastal scrub	Rocky (sometimes), Sandy (sometimes)	15	245	50	805	Yes	1974-01-01	No Photo Available
Lavatera assurgentiflora ssp. glabra	southern island mallow	Malvaceae	perennial evergreen shrub	May-Sep	None	None	G1T1	S1	1B.1	SB_CalBG/RSABG; SB_SBBG	Development, Foot traffic/trampling, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint.	Coastal bluff scrub		5	250	15	820	Yes	1984-01-01	© 1993 Dean Wm. Taylor
Layia carnosa	beach layia	Asteraceae	annual herb	Mar-Jul	FT	CE	G2	S2	1B.1	SB_CalBG/RSABG; SB_SBBG	Biocides, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Coastal dunes, Coastal scrub (sandy)		0	60	0	195		1988-01-01	© 2007 Aaron Schusteff
Layia discoidea	rayless layia	Asteraceae	annual herb	May	None	None	G2	S2	1B.1	BLM_S; SB_CalBG/RSABG	ORV activity, Recreational use (non-ORV)	Chaparral, Cismontane woodland, Lower montane coniferous forest	Alluvial Terraces, Serpentine, Talus	795	1585	2610	5200	Yes	1974-01-01	© 2010 Aaron Schusteff
Layia jonesii	Jones' layia	Asteraceae	annual herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_SBBG; USFS_S	Feral pigs, Grazing, Improper burning regime, Military operations, Non-native plant impacts	Chaparral, Valley and foothill grassland	Clay (sometimes), Serpentine (sometimes)	5	400	15	1310	Yes	1974-01-01	© 2011 Chris Winchell
Layia leucopappa	Comanche Point layia	Asteraceae	annual herb	Mar-Apr	None	None	G1	S1	1B.1	BLM_S; SB_SBBG	Agriculture, Development, Grazing	Chenopod scrub, Valley and foothill grassland		100	350	330	1150	Yes	1974-01-01	© 2013 Neal Kramer
Layia munzii	Munz's tidy-tips	Asteraceae	annual herb	Mar-Apr	None	None	G2	S2	1B.2	BLM_S; SB_SBBG	Agriculture, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Chenopod scrub, Valley and foothill grassland (alkaline clay)		150	700	490	2295	Yes	1988-01-01	© 2017 Neal Kramer
Legenere limosa	legenere	Campanulaceae	annual herb	Apr-Jun	None	None	G2	S2	1B.1	BLM_S; SB_UCBG	Agriculture, Development, Disease, Disking, Feral pigs, Foot traffic/trampling, Grazing, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Vernal pools		1	880	5	2885	Yes	1974-01-01	©2000 John Game
Monolopia congdonii	San Joaquin woollythreads	Asteraceae	annual herb	Feb-May	FE	None	G2	S2	1B.2	SB_UCBG	Agriculture, Altered flood/tidal/hydrologic regime, Development, Disking, Erosion/runoff, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Chenopod scrub, Valley and foothill grassland (sandy)		60	800	195	2625	Yes	1988-01-01	No Photo Available
Lepidium jaredii ssp. jaredii	Jared's pepper-grass	Brassicaceae	annual herb	Mar-May	None	None	G2G3T1T2	S1S2	1B.2	BLM_S; SB_SBBG	Development, Foot traffic/trampling, Grazing	Valley and foothill grassland (alkaline, adobe)		335	1005	1100	3295	Yes	1974-01-01	No Photo Available
Lewisia stebbinsii	Stebbins' lewisia	Montiaceae	perennial herb	May-Jul	None	None	G2	S2	1B.2	SB_UCSC; USFS_S	Grazing, Logging, ORV activity, Road/trail construction/maint.	Lower montane coniferous forest, Upper montane coniferous forest	Gravelly, Serpentine (sometimes)	1600	2050	5250	6725	Yes	1974-01-01	© 2015 John Doyen
Lilaeopsis masonii	Mason's lilaeopsis	Apiaceae	perennial rhizomatous herb	Apr-Nov	None	CR	G2	S2	1B.1		Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Pollution, Recreational use (non-ORV), Surface water diversion, Vandalism/dumping/litter, Waterway bank protection/maintenance	Marshes and swamps (brackish, freshwater), Riparian scrub		0	10	0	35	Yes	1974-01-01	No Photo Available
Lilium maritimum	coast lily	Liliaceae	perennial bulbiferous herb	May-Aug	None	None	G2	S2	1B.1	BLM_S; SB_BerrySB; SB_UCBG	Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Broadleafed upland forest, Closed-cone coniferous forest, Coastal prairie, Coastal scrub, Marshes and swamps (freshwater), North Coast coniferous forest	Roadsides (sometimes)	5	475	15	1560	Yes	1974-01-01	© 2020 Aaron Schusteff
Limnanthes bakeri	Baker's meadowfoam	Limnanthaceae	annual herb	Apr-May	None	CR	G1	S1	1B.1		Agriculture, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Marshes and swamps (freshwater), Meadows and seeps, Valley and foothill grassland (vernally mesic), Vernal pools		175	910	575	2985	Yes	1974-01-01	© 2019 Zoya Akulova
Linanthus killipii	Baldwin Lake linanthus	Polemoniaceae	annual herb	May-Jul	None	None	G1	S1	1B.2	SB_CalBG/RSABG; USFS_S	Development, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Joshua tree "woodland", Meadows and seeps (alkaline), Pebble (Pavement) plain, Pinyon and juniper woodland		1700	2400	5580	7875	Yes	1974-01-01	No Photo Available
Lithophragma maximum	San Clemente Island woodland star	Saxifragaceae	perennial rhizomatous herb	Apr-Jun	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Erosion/runoff	Coastal bluff scrub, Coastal scrub	Rocky	120	400	395	1310	Yes	1974-01-01	No Photo Available
Lomatium shevockii	Owens Peak lomatium	Apiaceae	perennial herb	Apr-May	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG		Lower montane coniferous forest, Upper montane coniferous forest	Rocky	1770	2535	5805	8315	Yes	1988-01-01	No Photo Available
Lomatium stebbinsii	Stebbins' lomatium	Apiaceae	perennial herb	Mar-May	None	None	G2	S2	1B.1	SB_SBBG; USFS_S	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Lower montane coniferous forest	Clay, Serpentine, Volcanic	1245	2375	4085	7790	Yes	1980-01-01	No Photo Available
Acmispon prostratus	Nuttall's acmispon	Fabaceae	annual herb	Mar-Jun(Jul)	None	None	G1G2	S1	1B.1	IUCN_EN; SB_CalBG/RSABG; SB_CRES; SB_USDA	Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Coastal dunes, Coastal scrub (sandy)		0	10	0	35		1974-01-01	© 2014 Andrew Borcher
Acmispon rubriflorus	red-flowered bird's-foot trefoil	Fabaceae	annual herb	Apr-Jun	None	None	G2	S2	1B.1	BLM_S	Development, Grazing, ORV activity, Other	Cismontane woodland, Valley and foothill grassland		200	425	655	1395	Yes	1974-01-01	© 2011 Dean Wm. Taylor, Ph.D.
Lupinus antoninus	Anthony Peak lupine	Fabaceae	perennial herb	May-Jul	None	None	G2	S2	1B.2	USFS_S		Lower montane coniferous forest, Upper montane coniferous forest	Rocky	1220	2285	4005	7495	Yes	1980-01-01	©2018 John Doyen
Lupinus citrinus var. citrinus	orange lupine	Fabaceae	annual herb	Apr-Jul	None	None	G2T2	S2	1B.2	BLM_S; SB_SBBG; USFS_S	Agriculture, Biocides, Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland, Lower montane coniferous forest	Granitic	380	1700	1245	5580	Yes	1974-01-01	No Photo Available
Lupinus citrinus var. deflexus	Mariposa lupine	Fabaceae	annual herb	Apr-May	None	CT	G2T1T2	S1	1B.2	BLM_S	Development, Grazing, ORV activity	Chaparral, Cismontane woodland	Granitic, Sandy	400	610	1310	2000	Yes	1974-01-01	No Photo Available
Lupinus duranii	Mono Lake lupine	Fabaceae	perennial herb	May-Aug	None	None	G2	S2	1B.2	BLM_S; SB_SBBG; USFS_S	Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Great Basin scrub, Subalpine coniferous forest, Upper montane coniferous forest	Gravelly	2000	3000	6560	9845	Yes	1974-01-01	No Photo Available
Lupinus ludovicianus	San Luis Obispo County lupine	Fabaceae	perennial herb	Apr-Jul	None	None	G1	S1	1B.2	BLM_S; SB_SBBG; USFS_S	Agriculture, Development, Foot traffic/trampling, Grazing, ORV activity, Road/trail construction/maint.	Chaparral, Cismontane woodland	Sandstone, Sandy	50	525	165	1725	Yes	1974-01-01	No Photo Available
Lupinus nipomensis	Nipomo Mesa lupine	Fabaceae	annual herb	Dec-May	FE	CE	G1	S1	1B.1	SB_SBBG	Agriculture, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Road/trail construction/maint.	Coastal dunes		10	50	35	165	Yes	1974-01-01	No Photo Available
Lupinus sericatus	Cobb Mountain lupine	Fabaceae	perennial herb	Mar-Jun	None	None	G2?	S2?	1B.2	BLM_S; SB_UCSC	Agriculture, Biocides, Development, Logging, Non-native plant impacts, ORV activity, Road/trail construction/maint.	Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest		275	1525	900	5005	Yes	1974-01-01	No Photo Available
Lupinus spectabilis	shaggyhair lupine	Fabaceae	annual herb	Apr-May	None	None	G2	S2	1B.2	BLM_S; SB_SBBG	Biocides, Development, Grazing, Mining, Road/trail construction/maint.	Chaparral, Cismontane woodland	Serpentine	260	825	855	2705	Yes	1974-01-01	No Photo Available
Lupinus tidestromii	Tidestrom's lupine	Fabaceae	perennial rhizomatous herb	Apr-Jun	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Development, Erosion/runoff, Foot traffic/trampling, Grazing, Hybridization, Non-native plant impacts, Other, Recreational use (non-ORV)	Coastal dunes		0	100	0	330	Yes	1974-01-01	No Photo Available
Harmonia hallii	Hall's harmonia	Asteraceae	annual herb	(Mar)Apr-Jun	None	None	G2?	S2?	1B.2	BLM_S; SB_CalBG/RSABG	Development, Grazing, ORV activity, Road/trail construction/maint.	Chaparral (serpentinite)		305	975	1000	3200	Yes	1984-01-01	© 2015 John Doyen
Harmonia stebbinsii	Stebbins' harmonia	Asteraceae	annual herb	May-Jun	None	None	G2	S2	1B.2	BLM_S; SB_UCSC; USFS_S	Improper burning regime, Logging, Mining, Non-native plant impacts, Road/trail construction/maint.	Chaparral, Lower montane coniferous forest	Serpentine	400	1580	1310	5185	Yes	1980-01-01	©2019 Steve Matson
Berberis nevinii	Nevin's barberry	Berberidaceae	perennial evergreen shrub	(Feb)Mar-Jun	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_SBBG	Agriculture, Altered flood/tidal/hydrologic regime, Channelization, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral, Cismontane woodland, Coastal scrub, Riparian scrub	Gravelly (sometimes), Sandy (sometimes)	70	825	230	2705	Yes	1980-01-01	No Photo Available
Malacothamnus abbottii	Abbott's bushmallow	Malvaceae	perennial deciduous shrub	May-Oct	None	None	G1	S1	1B.1	SB_UCSC	Agriculture, Development, Erosion/runoff, Grazing, Mining, Other, Road/trail construction/maint.	Riparian scrub		135	490	445	1610	Yes	1974-01-01	© 2018 Keir Morse
Malacothamnus arcuatus var. arcuatus	arcuate bushmallow	Malvaceae	perennial deciduous shrub	Apr-Sep	None	None	G2Q	S2	1B.2	SB_CalBG/RSABG	Development, Erosion/runoff, Improper burning regime, Insufficient population/stand size, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Cismontane woodland		15	355	50	1165	Yes	1974-01-01	© 2017 Keir Morse
Malacothamnus clementinus	San Clemente Island bushmallow	Malvaceae	perennial deciduous shrub	Mar-Aug	FD	CE	G2G3	S2S3	1B.1	SB_CalBG/RSABG; SB_SBBG	Erosion/runoff, Military operations, Vandalism/dumping/litter	Valley and foothill grassland (rocky)		10	275	35	900	Yes	1974-01-01	© 2011 Dylan Neubauer
Malacothamnus jonesii var. gracilis	slender bushmallow	Malvaceae	perennial deciduous shrub	May-Oct	None	None	G1Q	S1	1B.1	SB_CalBG/RSABG		Chaparral	Rocky (usually)	190	575	625	1885	Yes	1974-01-01	© 2017 Keir Morse
Malacothamnus hallii	Hall's bushmallow	Malvaceae	perennial deciduous shrub	(Apr)May-Sep(Oct)	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Dam/Inundation, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Coastal scrub		10	760	35	2495	Yes	1974-01-01	© 2017 Keir Morse
Malacothrix indecora	Santa Cruz Island malacothrix	Asteraceae	annual herb	Apr-Sep	FE	None	G2	S2	1B.1	SB_SBBG	Erosion/runoff, Foot traffic/trampling, Non-native plant impacts	Chaparral, Coastal bluff scrub, Coastal dunes, Coastal scrub	Rocky	5	30	15	100	Yes	1974-01-01	No Photo Available
Malacothrix squalida	island malacothrix	Asteraceae	annual herb	Apr-Jul	FE	None	G1	S1	1B.1	SB_SBBG	Erosion/runoff, Non-native plant impacts	Chaparral, Cismontane woodland, Coastal bluff scrub		15	200	50	655	Yes	1974-01-01	No Photo Available
Marina orcuttii var. orcuttii	California marina	Fabaceae	perennial herb	May-Oct	None	None	G2G3T1T2	S2?	1B.3	SB_CalBG/RSABG; USFS_S		Chaparral, Pinyon and juniper woodland, Sonoran desert scrub	Rocky	1050	1160	3445	3805		1984-01-01	No Photo Available
Holmgrenanthe petrophila	rock lady	Plantaginaceae	perennial herb	Apr-Jun	None	CR	G1	S1	1B.2	SB_CalBG/RSABG	Foot traffic/trampling, Road/trail construction/maint.	Mojavean desert scrub (carbonate, rocky)		515	1675	1690	5495	Yes	1974-01-01	No Photo Available
Stebbinsoseris decipiens	Santa Cruz microseris	Asteraceae	annual herb	Apr-May	None	None	G2	S2	1B.2	SB_CalBG/RSABG; SB_UCSC	Feral pigs, Grazing, Improper burning regime, Military operations, Non-native plant impacts, Other, Road/trail construction/maint.	Broadleafed upland forest, Chaparral, Closed-cone coniferous forest, Coastal prairie, Coastal scrub, Valley and foothill grassland	Openings, Serpentine (sometimes)	10	500	35	1640	Yes	1974-01-01	No Photo Available
Erythranthe gracilipes	slender-stalked monkeyflower	Phrymaceae	annual herb	Apr-Jun	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG; USFS_S	Development, Non-native plant impacts	Chaparral, Cismontane woodland, Lower montane coniferous forest	Burned areas (often), Decomposed granitic, Disturbed areas (often)	500	1300	1640	4265	Yes	1974-01-01	No Photo Available
Diplacus mohavensis	Mojave monkeyflower	Phrymaceae	annual herb	Apr-Jun	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Joshua tree "woodland", Mojavean desert scrub	Gravelly (sometimes), Sandy (sometimes), Washes (often)	600	1200	1970	3935	Yes	1988-01-01	© 2019 Joey Malone
Erythranthe norrisii	Kaweah monkeyflower	Phrymaceae	annual herb	Mar-May	None	None	G2	S2	1B.3	BLM_S; SB_CalBG/RSABG; USFS_S	Non-native plant impacts, Over-collecting/poaching	Chaparral, Cismontane woodland	Carbonate, Rocky	365	1300	1200	4265	Yes	1984-01-01	No Photo Available
Erythranthe marmorata	Stanislaus monkeyflower	Phrymaceae	annual herb	Mar-May	None	None	G2?	S2?	1B.1	BLM_S	Grazing	Cismontane woodland, Lower montane coniferous forest		100	900	330	2955	Yes	1974-01-01	No Photo Available
Phacelia inyoensis	Inyo phacelia	Hydrophyllaceae	annual herb	Apr-Aug	None	None	G2	S2	1B.2	BLM_S; SB_SBBG; USFS_S	Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Recreational use (non-ORV)	Meadows and seeps (alkaline)		915	3200	3000	10500	Yes	1974-01-01	No Photo Available
Phacelia parishii	Parish's phacelia	Hydrophyllaceae	annual herb	Apr-May(Jun-Jul)	None	None	G2G3	S1	1B.1	BLM_S; SB_CalBG/RSABG	Development, Military operations, ORV activity, Road/trail construction/maint.	Mojavean desert scrub, Playas	Alkaline (sometimes), Clay (sometimes)	540	1200	1770	3935		1980-01-01	No Photo Available
Phacelia phacelioides	Mt. Diablo phacelia	Hydrophyllaceae	annual herb	Apr-May	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Road/trail construction/maint.	Chaparral, Cismontane woodland	Rocky	500	1370	1640	4495	Yes	1974-01-01	©2019 Steve Matson
Phacelia keckii	Santiago Peak phacelia	Hydrophyllaceae	annual herb	May-Jul	None	None	G1	S1	1B.3	SB_CalBG/RSABG; USFS_S	Foot traffic/trampling, Road/trail construction/maint., Wood cutting or brush clearing	Chaparral, Closed-cone coniferous forest		545	1600	1790	5250	Yes	1980-01-01	No Photo Available
Sidalcea hickmanii ssp. viridis	Marin checkerbloom	Malvaceae	perennial herb	May-Jun	None	None	G2TH	SH	1B.1		Foot traffic/trampling, Improper burning regime	Chaparral (serpentinite)		50	430	165	1410	Yes	1974-01-01	No Photo Available
Sidalcea keckii	Keck's checkerbloom	Malvaceae	annual herb	Apr-May(Jun)	FE	None	G2	S2	1B.1	SB_CalBG/RSABG	Agriculture, Development, Grazing, Non-native plant impacts, Other, Road/trail construction/maint.	Cismontane woodland, Valley and foothill grassland	Clay, Serpentine	75	650	245	2135	Yes	1974-01-01	No Photo Available
Sidalcea pedata	bird-foot checkerbloom	Malvaceae	perennial herb	May-Aug	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Meadows and seeps (mesic), Pebble (Pavement) plain		1600	2500	5250	8205	Yes	1974-01-01	No Photo Available
Sidalcea robusta	Butte County checkerbloom	Malvaceae	perennial rhizomatous herb	Apr-Jun	None	None	G2	S2	1B.2	BLM_S; SB_UCSC	Agriculture, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland		90	1600	295	5250	Yes	1974-01-01	© 2010 George W Hartwell
Astragalus tener var. ferrisiae	Ferris' milk-vetch	Fabaceae	annual herb	Apr-May	None	None	G2T1	S1	1B.1	BLM_S	Agriculture, Grazing, Non-native plant impacts, Other, Surface water diversion	Meadows and seeps (vernally mesic), Valley and foothill grassland (subalkaline flats)		2	75	5	245	Yes	1994-01-01	No Photo Available
Astragalus tener var. tener	alkali milk-vetch	Fabaceae	annual herb	Mar-Jun	None	None	G2T1	S1	1B.2	SB_UCSC	Agriculture, Biocides, Development, Disking, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, Non-native plant impacts, ORV activity, Other, Surface water diversion	Playas, Valley and foothill grassland (adobe clay), Vernal pools	Alkaline	1	60	5	195	Yes	1994-01-01	No Photo Available
Atriplex depressa	brittlescale	Chenopodiaceae	annual herb	Apr-Oct	None	None	G2	S2	1B.2		Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Disking, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV)	Chenopod scrub, Meadows and seeps, Playas, Valley and foothill grassland, Vernal pools	Alkaline, Clay	1	320	5	1050	Yes	1994-01-01	© 2009 Zoya Akulova
Atriplex minuscula	lesser saltscale	Chenopodiaceae	annual herb	May-Oct	None	None	G2	S2	1B.1	SB_CalBG/RSABG	Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Erosion/runoff, Grazing, Improper burning regime, Landfill, Non-native plant impacts, Road/trail construction/maint.	Chenopod scrub, Playas, Valley and foothill grassland	Alkaline, Sandy	15	200	50	655	Yes	1994-01-01	© 2000 Robert E. Preston, Ph.D.
Trifolium jokerstii	Butte County golden clover	Fabaceae	annual herb	Mar-May	None	None	G2	S2	1B.2	BLM_S; SB_UCSC; SB_USDA	Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV)	Valley and foothill grassland (mesic), Vernal pools		50	480	165	1575	Yes	2001-01-01	© 2008 George W Hartwell
Tropidocarpum californicum	Kings gold	Brassicaceae	annual herb	Feb-Mar	None	None	G1	S1	1B.1	BLM_S	Agriculture, Development, Disking, Grazing	Chenopod scrub		65	180	215	590	Yes	2001-01-01	© 2017 Robert E. Preston, Ph.D.
Monardella venosa	veiny monardella	Lamiaceae	annual herb	May-Jul	None	None	G1	S1	1B.1	BLM_S; SB_CalBG/RSABG; SB_UCBG	Agriculture, Dam/Inundation, Development, Grazing, Mining	Cismontane woodland, Valley and foothill grassland	Clay	60	410	195	1345	Yes	1984-01-01	© 2007 George W. Hartwell
Monardella undulata ssp. undulata	San Luis Obispo monardella	Lamiaceae	perennial rhizomatous herb	May-Sep	None	None	G2	S2	1B.2	BLM_S; SB_SBBG	Development, Feral pigs, Non-native plant impacts, ORV activity, Road/trail construction/maint.	Coastal dunes, Coastal scrub (sandy)		10	200	35	655	Yes	1974-01-01	No Photo Available
Navarretia fossalis	spreading navarretia	Polemoniaceae	annual herb	Apr-Jun	FT	None	G2	S2	1B.1	SB_CalBG/RSABG; SB_CRES	Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Channelization, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Waterway bank protection/maintenance	Chenopod scrub, Marshes and swamps (shallow freshwater), Playas, Vernal pools		30	655	100	2150		1980-01-01	No Photo Available
Navarretia rosulata	Marin County navarretia	Polemoniaceae	annual herb	May-Jul	None	None	G2	S2	1B.2	BLM_S; SB_CalBG/RSABG	Foot traffic/trampling, Wood cutting or brush clearing	Chaparral, Closed-cone coniferous forest	Rocky, Serpentine	200	635	655	2085	Yes	1980-01-01	No Photo Available
Navarretia setiloba	Piute Mountains navarretia	Polemoniaceae	annual herb	Apr-Jul	None	None	G2	S2	1B.1	BLM_S; SB_CalBG/RSABG; USFS_S	Development, Foot traffic/trampling, Grazing, ORV activity, Road/trail construction/maint., Vandalism/dumping/litter	Cismontane woodland, Pinyon and juniper woodland, Valley and foothill grassland	Clay (sometimes), Gravelly (sometimes), Loam (sometimes)	285	2100	935	6890	Yes	1974-01-01	No Photo Available
Neostapfia colusana	Colusa grass	Poaceae	annual herb	May-Aug	FT	CE	G1	S1	1B.1		Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Pollution, Road/trail construction/maint., Surface water diversion	Vernal pools (adobe clay)		5	200	15	655	Yes	1974-01-01	No Photo Available
Nitrophila mohavensis	Amargosa nitrophila	Amaranthaceae	perennial herb	May-Oct	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Groundwater pumping, Mining, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Playas (mesic clay)		425	750	1395	2460		1974-01-01	No Photo Available
Oenothera wolfii	Wolf's evening-primrose	Onagraceae	perennial herb	May-Oct	None	None	G2	S1	1B.1	BLM_S; SB_BerrySB	Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Hybridization, Landfill, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Coastal bluff scrub, Coastal dunes, Coastal prairie, Lower montane coniferous forest	Mesic (usually), Sandy	3	800	10	2625		1980-01-01	©2017 Dana York
Orcuttia californica	California Orcutt grass	Poaceae	annual herb	Apr-Aug	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG; SB_CRES	Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Vernal pools		15	660	50	2165		1974-01-01	No Photo Available
Orcuttia inaequalis	San Joaquin Valley Orcutt grass	Poaceae	annual herb	Apr-Sep	FT	CE	G1	S1	1B.1		Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Vernal pools		10	755	35	2475	Yes	1974-01-01	No Photo Available
Orcuttia pilosa	hairy Orcutt grass	Poaceae	annual herb	May-Sep	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Altered flood/tidal/hydrologic regime, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint.	Vernal pools		46	200	150	655	Yes	1980-01-01	© 2003 George W. Hartwell
Orcuttia tenuis	slender Orcutt grass	Poaceae	annual herb	May-Sep(Oct)	FT	CE	G2	S2	1B.1	SB_UCBG	Altered flood/tidal/hydrologic regime, Biocides, Development, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion	Vernal pools	Gravelly (often)	35	1760	115	5775	Yes	1974-01-01	© 2013 Justy Leppert
Orcuttia viscida	Sacramento Orcutt grass	Poaceae	annual herb	Apr-Jul(Sep)	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Insufficient population/stand size, Landfill, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint.	Vernal pools		30	100	100	330	Yes	1974-01-01	© Rick York and CNPS
Triphysaria floribunda	San Francisco owl's-clover	Orobanchaceae	annual herb	Apr-Jun	None	None	G2?	S2?	1B.2		Development, Erosion/runoff, Foot traffic/trampling, Grazing, Insufficient population/stand size, Mining, Non-native plant impacts, Other, Road/trail construction/maint.	Coastal prairie, Coastal scrub, Valley and foothill grassland	Serpentine (usually)	10	160	35	525	Yes	1974-01-01	No Photo Available
Castilleja lasiorhyncha	San Bernardino Mountains owl's-clover	Orobanchaceae	annual herb (hemiparasitic)	May-Aug	None	None	G2?	S2?	1B.2	SB_CalBG/RSABG; USFS_S	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Chaparral, Meadows and seeps, Pebble (Pavement) plain, Riparian woodland, Upper montane coniferous forest	Mesic	1300	2390	4265	7840	Yes	1980-01-01	No Photo Available
Orthocarpus pachystachyus	Shasta orthocarpus	Orobanchaceae	annual herb	May	None	None	G1	S1	1B.1	BLM_S	Development	Great Basin scrub, Meadows and seeps, Valley and foothill grassland		840	850	2755	2790	Yes	1974-01-01	©2022 Julie Kierstead
Sedella leiocarpa	Lake County stonecrop	Crassulaceae	annual herb	Apr-May	FE	CE	G1	S1	1B.1		Agriculture, Disking, Grazing, Non-native plant impacts, Other, Road/trail construction/maint.	Cismontane woodland, Valley and foothill grassland, Vernal pools	Vernally Mesic, Volcanic	365	790	1200	2590	Yes	1974-01-01	No Photo Available
Pedicularis dudleyi	Dudley's lousewort	Orobanchaceae	perennial herb	Apr-Jun	None	CR	G2	S2	1B.2	SB_CalBG/RSABG; SB_UCSC; USFS_S	Development, Disease, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Insufficient population/stand size, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing	Chaparral (maritime), Cismontane woodland, North Coast coniferous forest, Valley and foothill grassland		60	900	195	2955	Yes	1974-01-01	No Photo Available
Penstemon albomarginatus	white-margined beardtongue	Plantaginaceae	perennial herb	Mar-May(Jun)	None	None	G1	S1	1B.1	BLM_S; SB_CalBG/RSABG	Development, Erosion/runoff, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter	Desert dunes (stabilized), Mojavean desert scrub (sandy)		620	1065	2035	3495		1988-01-01	Michelle Cloud-Hughes 2010
Pentachaeta bellidiflora	white-rayed pentachaeta	Asteraceae	annual herb	Mar-May	FE	CE	G1	S1	1B.1	SB_UCBG	Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter	Cismontane woodland, Valley and foothill grassland (often serpentinite)		35	620	115	2035	Yes	1974-01-01	No Photo Available
Pentachaeta lyonii	Lyon's pentachaeta	Asteraceae	annual herb	(Feb)Mar-Aug	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Improper burning regime, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing	Chaparral (openings), Coastal scrub, Valley and foothill grassland	Clay, Rocky	30	690	100	2265	Yes	1974-01-01	No Photo Available
Potentilla hickmanii	Hickman's cinquefoil	Rosaceae	perennial herb	Apr-Aug	FE	CE	G1	S1	1B.1	SB_UCBG	Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV)	Closed-cone coniferous forest, Coastal bluff scrub, Marshes and swamps (freshwater), Meadows and seeps (vernally mesic)		10	149	35	490	Yes	1974-01-01	No Photo Available
Pseudobahia bahiifolia	Hartweg's golden sunburst	Asteraceae	annual herb	Mar-Apr	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Cismontane woodland, Valley and foothill grassland	Acidic (often), Clay	15	150	50	490	Yes	1974-01-01	No Photo Available
Triteleia clementina	San Clemente Island triteleia	Themidaceae	perennial bulbiferous herb	Mar-Apr	None	None	G2	S2	1B.2	SB_CalBG/RSABG; SB_CRES		Valley and foothill grassland (rocky)		100	445	330	1460	Yes	1974-01-01	No Photo Available
Tropidocarpum capparideum	caper-fruited tropidocarpum	Brassicaceae	annual herb	Mar-Apr	None	None	G1	S1	1B.1	SB_CalBG/RSABG; USFS_S	Agriculture, Altered flood/tidal/hydrologic regime, Development, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity	Valley and foothill grassland (alkaline hills)		1	455	5	1495	Yes	1974-01-01	No Photo Available
Tuctoria greenei	Greene's tuctoria	Poaceae	annual herb	May-Jul(Sep)	FE	CR	G1	S1	1B.1		Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Surface water diversion	Vernal pools		30	1070	100	3510	Yes	1974-01-01	©2008 F. Gauna
Tuctoria mucronata	Crampton's tuctoria or Solano grass	Poaceae	annual herb	Apr-Aug	FE	CE	G1	S1	1B.1	SB_CalBG/RSABG	Altered flood/tidal/hydrologic regime, Grazing, Insufficient population/stand size, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV)	Valley and foothill grassland (mesic), Vernal pools		5	10	15	35	Yes	1974-01-01	No Photo Available
Plagiobothrys strictus	Calistoga popcornflower	Boraginaceae	annual herb	Mar-Jun	FE	CT	G1	S1	1B.1	SB_UCBG	Development, Other, Road/trail construction/maint.	Meadows and seeps, Valley and foothill grassland, Vernal pools	Alkaline	90	160	295	525	Yes	1974-01-01	No Photo Available
Plagiobothrys uncinatus	hooked popcornflower	Boraginaceae	annual herb	Apr-May	None	None	G2	S2	1B.2	BLM_S; USFS_S	Feral pigs, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral (sandy), Cismontane woodland, Valley and foothill grassland		300	760	985	2495	Yes	1974-01-01	No Photo Available
Streptanthus brachiatus ssp. hoffmanii	Freed's jewelflower	Brassicaceae	perennial herb	May-Jul	None	None	G2T2	S2	1B.2	BLM_S	Erosion/runoff, Mining, Other, Recreational use (non-ORV), Road/trail construction/maint.	Chaparral, Cismontane woodland	Serpentine	490	1220	1610	4005	Yes	1994-01-01	No Photo Available
Streptanthus morrisonii ssp. kruckebergii	Kruckeberg's jewelflower	Brassicaceae	perennial herb	Apr-Jul	None	None	G2T1	S1	1B.2	BLM_S	Mining, Other	Cismontane woodland (serpentinite)		215	1035	705	3395	Yes	1994-01-01	No Photo Available
Streptanthus morrisonii ssp. morrisonii	Morrison's jewelflower	Brassicaceae	perennial herb	May-Sep	None	None	G2T1?	S1?	1B.2	BLM_S		Chaparral (rocky, serpentinite, talus)		120	585	395	1920	Yes	1974-01-01	No Photo Available
Trifolium hydrophilum	saline clover	Fabaceae	annual herb	Apr-Jun	None	None	G2	S2	1B.2		Agriculture, Biocides, Development, Disking, Grazing, Improper burning regime, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter	Marshes and swamps, Valley and foothill grassland (mesic, alkaline), Vernal pools		0	300	0	985	Yes	2001-01-01	© 2005 Dean Wm Taylor
Sabulina stolonifera	Scott Mountain sandwort	Caryophyllaceae	perennial stoloniferous herb	May-Aug	None	None	G2	S2	1B.3	BLM_S; SB_CalBG/RSABG; USFS_S	Road/trail construction/maint.	Lower montane coniferous forest (serpentinite)		1250	1400	4100	4595	Yes	1994-01-01	©2013 Julie Kierstead Nelson
Boechera hirshbergiae	Hirshberg's rockcress	Brassicaceae	perennial herb	Mar-May	None	None	G1Q	S1	1B.2	SB_CRES	Grazing	Pebble (Pavement) plain		1400	1415	4595	4645	Yes	2001-01-01	No Photo Available