CNPS

CNPS Rare Plant Inventory


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278 matches found. Click on scientific name for details

Search Criteria: CRPR is one of [1B:2B] Fed List is one of [FE:FT] or State List is one of [CE:CT:CR]

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 Photo of Ambrosia pumila
© 2010 Benjamin Smith
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 Photo of Amsinckia grandiflora
© 2015 Zoya Akulova
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 Photo of Fritillaria gentneri
© 2013 Scot Loring
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 Photo of Arctostaphylos confertiflora
© 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 Photo of Arctostaphylos densiflora
© 2006 Steve Matson
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 Photo of Arctostaphylos morroensis
© 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 Photo of Arctostaphylos myrtifolia
© 2006 Steve Matson
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
Calochortus persistens Siskiyou mariposa-lily Liliaceae perennial bulbiferous herb Jun-Jul None CR G2 S2 1B.2 SB_BerrySB; USFS_S Foot traffic/trampling, Improper burning regime, Logging, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Road/trail construction/maint. Lower montane coniferous forest, North Coast coniferous forest Acidic, Rocky 1000 1860 3280 6105 1974-01-01 Photo of Calochortus persistens
©2014 Scot Loring
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 Photo of Acanthomintha ilicifolia
© 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 Photo of Acanthomintha duttonii
© 2011 Aaron Schusteff
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 Photo of Allium munzii
© 2003 Guy Bruyea
Allium yosemitense Yosemite onion Alliaceae perennial bulbiferous herb Apr-Jul None CR G3 S3 1B.3 SB_UCSC; USFS_S Erosion/runoff, Mining, Other, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest Granitic (sometimes), Metamorphic (sometimes), Rocky 535 2200 1755 7220 Yes 1974-01-01 Photo of Allium yosemitense
© 2012 Lynn Robertson
Alopecurus aequalis var. sonomensis Sonoma alopecurus Poaceae perennial herb May-Jul FE None G5T1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, Other Marshes and swamps (freshwater), Riparian scrub 5 365 15 1200 Yes 1974-01-01 Photo of Alopecurus aequalis var. sonomensis
© 2013 Vernon Smith
Arctostaphylos hookeri ssp. hearstiorum Hearsts' manzanita Ericaceae perennial evergreen shrub Feb-Apr None CE G3T2 S2? 1B.2 Foot traffic/trampling, Grazing, Hybridization Chaparral (maritime), Coastal prairie, Coastal scrub, Valley and foothill grassland Sandy 55 200 180 655 Yes 1974-01-01 Photo of Arctostaphylos hookeri ssp. hearstiorum
© 2006 Steve Matson
Arctostaphylos montana ssp. ravenii Presidio manzanita Ericaceae perennial evergreen shrub Feb-Mar FE CE G3T1 S1 1B.1 Development, Disease, Foot traffic/trampling, Insufficient population/stand size, Non-native plant impacts Chaparral, Coastal prairie, Coastal scrub Serpentine 45 215 150 705 Yes 1980-01-01 Photo of Arctostaphylos montana ssp. ravenii
© 2019 Susan McDougall
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 Photo of Arctostaphylos imbricata
© 2013 Robert Sikora
Calochortus dunnii Dunn's mariposa-lily Liliaceae perennial bulbiferous herb (Feb)Apr-Jun None CR G3 S3 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S Development, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Closed-cone coniferous forest, Valley and foothill grassland Gabbroic (sometimes), Rocky 185 1830 605 6005 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
Deinandra conjugens Otay tarplant Asteraceae annual herb (Apr)May-Jun FT CE G1 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 G1? S1? 1B.2 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 imbricata Vine Hill clarkia Onagraceae annual herb Jun-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Agriculture, Development, Hybridization, Non-native plant impacts, Other, Over-collecting/poaching, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Valley and foothill grassland Acidic, Loam, Sandy 50 75 165 245 Yes 1974-01-01
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 speciosa ssp. immaculata Pismo clarkia Onagraceae annual herb May-Jul FE CR G4T1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral (margins, openings), Cismontane woodland, Valley and foothill grassland Sandy 25 185 80 605 Yes 1980-01-01
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
Chloropyron maritimum ssp. maritimum salt marsh bird's-beak Orobanchaceae annual herb (hemiparasitic) May-Oct(Nov) FE CE G4?T1 S1 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES; SB_SBBG Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Insufficient population/stand size, 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, Marshes and swamps (coastal salt) 0 30 0 100 1974-01-01
No Photo Available
Chloropyron molle ssp. molle soft salty bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Nov FE CR G2T1 S1 1B.2 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Channelization, Development, Disking, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Military operations, Non-native plant impacts, ORV activity, Other, Pollution, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter Marshes and swamps (coastal salt) 0 3 0 10 Yes 1974-01-01 Photo of Chloropyron molle ssp. molle
© 2014 John Doyen
Cordylanthus nidularius Mt. Diablo bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Aug None CR G1 S1 1B.1 SB_UCBG Feral pigs, Foot traffic/trampling, Road/trail construction/maint. Chaparral (serpentinite) 600 800 1970 2625 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
Arabis mcdonaldiana McDonald's rockcress Brassicaceae perennial herb May-Jul FE CE G3 S3 1B.1 SB_BerrySB; SB_CalBG/RSABG Grazing, Mining, Other, Road/trail construction/maint. Lower montane coniferous forest, Upper montane coniferous forest Serpentine 135 1800 445 5905 1974-01-01 Photo of Arabis mcdonaldiana
© 2003 Norman Jensen
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 Photo of Arctostaphylos bakeri ssp. bakeri
© 2004 David Graber
Atriplex coronata var. notatior San Jacinto Valley crownscale Chenopodiaceae annual herb Apr-Aug FE None G4T1 S1 1B.1 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Playas, Valley and foothill grassland (mesic), Vernal pools Alkaline 139 500 455 1640 Yes 1988-01-01 Photo of Atriplex coronata var. notatior
© 2008 Larry Sward
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 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
Eriogonum ovalifolium var. vineum Cushenbury buckwheat Polygonaceae perennial herb May-Aug FE None G5T1 S1 1B.1 SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing, Mining, 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", Mojavean desert scrub, Pinyon and juniper woodland Carbonate 1400 2440 4595 8005 Yes 1974-01-01
No Photo Available
Hazardia orcuttii Orcutt's hazardia Asteraceae perennial evergreen shrub Aug-Oct None CT G1 S1 1B.1 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Insufficient population/stand size, Non-native plant impacts, ORV activity, Recreational use (non-ORV) Chaparral (maritime), Coastal scrub Clay (often) 80 85 260 280 1984-01-01 Photo of Hazardia orcuttii
© 2011 Keir Morse
Crocanthemum greenei island rush-rose Cistaceae perennial evergreen shrub (Jan)Mar-Jul(Aug) FT None G3 S3 1B.2 SB_SBBG Erosion/runoff, Foot traffic/trampling, Grazing, Non-native animal impacts, Non-native plant impacts, Other, Over-collecting/poaching, Road/trail construction/maint. Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub Openings, Rocky 15 490 50 1610 Yes 1974-01-01
No Photo Available
Limnanthes floccosa ssp. californica Butte County meadowfoam Limnanthaceae annual herb Mar-May FE CE G4T1 S1 1B.1 SB_CalBG/RSABG Agriculture, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Surface water diversion Valley and foothill grassland (mesic), Vernal pools 46 930 150 3050 Yes 1980-01-01 Photo of Limnanthes floccosa ssp. californica
© 2007 George W. Hartwell
Limnanthes alba ssp. parishii Parish's meadowfoam Limnanthaceae annual herb Apr-Jun None CE G4T2 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_USDA; USFS_S Altered flood/tidal/hydrologic regime, Biocides, Channelization, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Lower montane coniferous forest, Meadows and seeps, Vernal pools Vernally Mesic 600 2000 1970 6560 Yes 1974-01-01 Photo of Limnanthes alba ssp. parishii
© 2005 Christopher L. Christie
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 Photo of Limnanthes vinculans
© 2015 Vernon Smith
Arctostaphylos franciscana Franciscan manzanita Ericaceae perennial evergreen shrub Feb-Apr FE None GHC S1 1B.1 SB_UCBG Development, Other, Road/trail construction/maint. Coastal scrub (serpentinite) 60 300 195 985 Yes 1974-01-01 Photo of Arctostaphylos franciscana
© 2015 Neal Kramer
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
Astragalus agnicidus Humboldt County milk-vetch Fabaceae perennial herb (Mar)Apr-Sep None CE G2 S2 1B.1 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 Photo of Astragalus agnicidus
©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 Photo of Astragalus brauntonii
© 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 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 johannis-howellii Long Valley milk-vetch Fabaceae perennial herb Jun-Aug None CR G2 S1 1B.2 BLM_S; SB_SBBG; USFS_S Dam/Inundation, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Great Basin scrub (sandy loam) 2040 2530 6695 8300 1974-01-01
No Photo Available
Astragalus lentiginosus var. coachellae Coachella Valley milk-vetch Fabaceae annual/perennial herb Feb-May FE None G5T1 S1 1B.2 SB_CalBG/RSABG; SB_USDA Altered flood/tidal/hydrologic regime, Biocides, Development, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter Desert dunes, Sonoran desert scrub (sandy) 40 655 130 2150 Yes 1984-01-01
No Photo Available
Astragalus lentiginosus var. piscinensis Fish Slough milk-vetch Fabaceae perennial herb Jun-Jul FT None G5T1 S1 1B.1 SB_CalBG/RSABG Grazing, ORV activity, Other, Vandalism/dumping/litter Playas (alkaline) 1130 1300 3710 4265 Yes 1980-01-01
No Photo Available
Astragalus lentiginosus var. sesquimetralis Sodaville milk-vetch Fabaceae perennial herb Apr-Jul None CE G5T1 S1 1B.1 Foot traffic/trampling, Grazing, Non-native animal impacts Meadows and seeps (alkaline) 955 975 3135 3200 1974-01-01
No Photo Available
Astragalus magdalenae var. peirsonii Peirson's milk-vetch Fabaceae perennial herb Dec-Apr FT CE G3G4T1 S1 1B.2 SB_CalBG/RSABG ORV activity, Other Desert dunes 60 225 195 740 1974-01-01
No Photo Available
Astragalus monoensis Mono milk-vetch Fabaceae perennial herb Jun-Aug None CR G2 S2 1B.2 BLM_S; SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Great Basin scrub, Upper montane coniferous forest Gravelly (sometimes), Sandy (sometimes) 2110 3355 6925 11010 Yes 1974-01-01
No Photo Available
Astragalus pycnostachyus var. lanosissimus Ventura Marsh milk-vetch Fabaceae perennial herb (Jun)Aug-Oct FE CE G2T1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Development, Foot traffic/trampling, Non-native plant impacts, Other, Over-collecting/poaching, Pollution Coastal dunes, Coastal scrub, Marshes and swamps (edges, coastal salt, brackish) 1 35 5 115 Yes 1974-01-01
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 traskiae Trask's milk-vetch Fabaceae perennial herb Feb-Jul None CR G3 S3 1B.2 Erosion/runoff, Non-native plant impacts Coastal bluff scrub, Coastal dunes, Coastal scrub 5 245 15 805 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
Baccharis vanessae Encinitas baccharis Asteraceae perennial deciduous shrub Aug-Nov FT CE G1 S1 1B.1 SB_CRES Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Feral pigs, 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 Chaparral (maritime), Cismontane woodland Sandstone 60 720 195 2360 Yes 1980-01-01
No Photo Available
Bensoniella oregona bensoniella Saxifragaceae perennial herb May-Jul None CR G3 S2 1B.1 SB_UCSC; USFS_S Altered flood/tidal/hydrologic regime, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Bogs and fens, Lower montane coniferous forest (openings), Meadows and seeps Mesic 900 1400 2955 4595 1974-01-01 Photo of Bensoniella oregona
© 2021 Scot Loring
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
Blennosperma nanum var. robustum Point Reyes blennosperma Asteraceae annual herb Feb-Apr None CR G4T2 S2 1B.2 SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal prairie, Coastal scrub 10 145 35 475 Yes 1974-01-01
No Photo Available
Bloomeria humilis dwarf goldenstar Themidaceae perennial bulbiferous herb Jun None CR G1 S1 1B.2 SB_CalBG/RSABG; SB_SBBG; USFS_S Development, Foot traffic/trampling, Non-native plant impacts, Road/trail construction/maint. Chaparral, Coastal bluff scrub, Valley and foothill grassland 10 120 35 395 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 Photo of Brodiaea filifolia
© 2016 Keir Morse
Brodiaea insignis Kaweah brodiaea Themidaceae perennial bulbiferous herb Apr-Jun None CE G1 S1 1B.2 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 Photo of Brodiaea insignis
© 2007 Robert E. Preston, Ph.D.
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 Photo of Brodiaea pallida
© 2014 Robert E. Preston, Ph.D.
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 cymosa ssp. marcescens marcescent dudleya Crassulaceae perennial herb Apr-Jul FT CR G5T2 S2 1B.2 SB_CalBG/RSABG; SB_SBBG Development, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint. Chaparral Rocky, Volcanic 150 520 490 1705 Yes 1974-01-01
No Photo Available
Dudleya cymosa ssp. ovatifolia Santa Monica dudleya Crassulaceae perennial herb Mar-Jun FT None G5T1 S1 1B.1 Improper burning regime, Non-native plant impacts, Recreational use (non-ORV), Vandalism/dumping/litter Chaparral, Coastal scrub Rocky, Volcanic (sometimes) 150 1675 490 5495 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 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 Photo of Hesperolinon congestum
© 2009 Neal Kramer
Hesperolinon didymocarpum Lake County western flax Linaceae annual herb May-Jul None CE G1 S1 1B.2 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 Photo of Hesperolinon didymocarpum
© 2018 Aaron Arthur
Castilleja cinerea ash-gray paintbrush Orobanchaceae perennial herb (hemiparasitic) Jun-Aug FT None G1G2 S1S2 1B.2 SB_CalBG/RSABG 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, Mojavean desert scrub, Pebble (Pavement) plain, Pinyon and juniper woodland, Upper montane coniferous forest (clay, openings) 1800 2960 5905 9710 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 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 grisea San Clemente Island paintbrush Orobanchaceae perennial herb (hemiparasitic) Feb-Aug(Dec) FD CE G3 S3 1B.3 SB_CalBG/RSABG; SB_SBBG Erosion/runoff, Improper burning regime Coastal bluff scrub, Coastal scrub Rocky 10 535 35 1755 Yes 1974-01-01 Photo of Castilleja grisea
© 2014 John Game
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
Castilleja affinis var. neglecta Tiburon paintbrush Orobanchaceae perennial herb (hemiparasitic) Apr-Jun FE CT G4G5T1T2 S1S2 1B.2 SB_CalBG/RSABG; SB_UCBG Development, Feral pigs, Foot traffic/trampling, Grazing, Landfill, Mining, Non-native plant impacts, ORV activity, Other Valley and foothill grassland (serpentinite) 60 400 195 1310 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
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 BLM_S 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
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 Photo of Cercocarpus traskiae
© 2021 Zoya Akulova
Euphorbia hooveri Hoover's spurge Euphorbiaceae annual herb 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
No Photo Available
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 Photo of Hooveria purpurea var. purpurea
© 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 Photo of Hooveria purpurea var. reducta
© 2017 John B Moule
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 parryi var. fernandina San Fernando Valley spineflower Polygonaceae annual herb Apr-Jul None CE G2T1 S1 1B.1 SB_CalBG/RSABG; USFS_S Agriculture, Development, Erosion/runoff, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Coastal scrub (sandy), Valley and foothill grassland 150 1220 490 4005 Yes 1974-01-01
No Photo Available
Chorizanthe pungens var. pungens Monterey spineflower Polygonaceae annual herb Apr-Jun(Jul-Aug) FT None G2T2 S2 1B.2 BLM_S; 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 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
Chorizanthe valida Sonoma spineflower Polygonaceae annual herb Jun-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Coastal prairie (sandy) 10 305 35 1000 Yes 1974-01-01
No Photo Available
Cirsium ciliolatum Ashland thistle Asteraceae perennial herb Jun-Aug None CE G3 S1 2B.1 Biocides, Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland 800 1400 2625 4595 1980-01-01 Photo of Cirsium ciliolatum
© 2021 Scot Loring
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. hydrophilum Suisun thistle Asteraceae perennial herb Jun-Sep FE None G2T1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Feral pigs, Foot traffic/trampling, Grazing, Hybridization, Improper burning regime, Non-native animal impacts, Non-native plant impacts Marshes and swamps (salt) 0 1 0 5 Yes 1974-01-01
No Photo Available
Cirsium scariosum var. loncholepis La Graciosa thistle Asteraceae perennial herb May-Aug FE CT G5T1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Coastal dunes, Coastal scrub, Marshes and swamps (brackish), Valley and foothill grassland Mesic, Sandy 4 220 15 720 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
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
Cordylanthus rigidus ssp. littoralis seaside bird's-beak Orobanchaceae annual herb (hemiparasitic) Apr-Oct None CE G5T2 S2 1B.1 BLM_S; SB_CalBG/RSABG; SB_SBBG Development, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Chaparral (maritime), Cismontane woodland, Closed-cone coniferous forest, Coastal dunes, Coastal scrub Disturbed areas (often), Sandy 0 515 0 1690 Yes 1980-01-01
No Photo Available
Cordylanthus tenuis ssp. capillaris Pennell's bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Sep FE CR G4G5T1 S1 1B.2 SB_CalBG/RSABG Development, Erosion/runoff, Grazing, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Closed-cone coniferous forest Serpentine 45 305 150 1000 Yes 1980-01-01
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
Oreocarya roosiorum bristlecone cryptantha Boraginaceae perennial herb Jun-Jul None CR G2 S2 1B.2 BLM_S; SB_CalBG/RSABG; USFS_S ORV activity Subalpine coniferous forest (carbonate, rocky) 2440 3230 8005 10600 Yes 1974-01-01
No Photo Available
Hesperocyparis abramsiana var. abramsiana Santa Cruz cypress Cupressaceae perennial evergreen tree FT CE G1T1 S1 1B.2 SB_CalBG/RSABG; SB_UCSC Agriculture, Development, Erosion/runoff, Hybridization, 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, Closed-cone coniferous forest, Lower montane coniferous forest Granitic (sometimes), Sandstone (sometimes) 280 800 920 2625 Yes 1974-01-01 Photo of Hesperocyparis abramsiana var. abramsiana
© 2012 Neal Kramer
Hesperocyparis goveniana Gowen cypress Cupressaceae perennial evergreen tree FT None G1 S1 1B.2 IUCN_EN; SB_CalBG/RSABG; SB_UCSC Development, Improper burning regime, Non-native plant impacts Chaparral (maritime), Closed-cone coniferous forest 30 300 100 985 Yes 1980-01-01 Photo of Hesperocyparis goveniana
© 2016 Susan McDougall
Dedeckera eurekensis July gold Polygonaceae perennial deciduous shrub May-Aug None CR G3 S3 1B.3 BLM_S; SB_BerrySB; USFS_S Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Mojavean desert scrub (carbonate) 1215 2200 3985 7220 Yes 1980-01-01
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 hesperium ssp. cuyamacae Cuyamaca larkspur Ranunculaceae perennial herb May-Jul None CR G4T2 S2 1B.2 SB_CalBG/RSABG; SB_CRES; USFS_S Development, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV) Lower montane coniferous forest, Meadows and seeps, Vernal pools Mesic 1220 1631 4005 5350 Yes 1974-01-01
No Photo Available
Delphinium variegatum ssp. kinkiense San Clemente Island larkspur Ranunculaceae perennial herb Mar-Apr FD CE G4T2 S2 1B.1 SB_CalBG/RSABG Erosion/runoff Valley and foothill grassland (coastal) 75 500 245 1640 Yes 1980-01-01 Photo of Delphinium variegatum ssp. kinkiense
© 2011 Neal Kramer
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
Dithyrea maritima beach spectaclepod Brassicaceae perennial rhizomatous herb Mar-May None CT G1 S1 1B.1 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
Downingia concolor var. brevior Cuyamaca Lake downingia Campanulaceae annual herb May-Jul None CE G4T1 S1 1B.1 SB_CRES Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter Meadows and seeps (vernally mesic), Vernal pools 1380 1500 4530 4920 Yes 1980-01-01
No Photo Available
Dudleya abramsii ssp. setchellii Santa Clara Valley dudleya Crassulaceae perennial herb Apr-Oct FE None G4T2 S2 1B.1 SB_CalBG/RSABG Biocides, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Hybridization, Improper burning regime, Insufficient population/stand size, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Waterway bank protection/maintenance Cismontane woodland, Valley and foothill grassland Rocky, Serpentine 60 535 195 1755 Yes 1988-01-01
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 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 Photo of Dudleya verityi
© 2015 Adam Searcy
Eremalche parryi ssp. kernensis Kern mallow Malvaceae annual herb Jan(Feb)Mar-May FE None G3G4T3 S3 1B.2 SB_CalBG/RSABG; SB_SBBG Agriculture, Biocides, Development, Disking, 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. Chenopod scrub, Pinyon and juniper woodland, Valley and foothill grassland Clay (sometimes), Dry, Openings, Sandy (sometimes) 70 1290 230 4230 Yes 1974-01-01
No Photo Available
Eriastrum densifolium ssp. sanctorum Santa Ana River woollystar Polemoniaceae perennial herb Apr-Sep FE CE G4T1 S1 1B.1 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Channelization, Dam/Inundation, Development, Disking, Foot traffic/trampling, Grazing, Hybridization, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter Chaparral, Coastal scrub (alluvial fans) Gravelly (sometimes), Sandy (sometimes) 91 610 300 2000 Yes 1980-01-01
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
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
Eriogonum alpinum Trinity buckwheat Polygonaceae perennial rhizomatous herb Jun-Sep None CE G2 S2 1B.2 USFS_S Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, ORV activity Alpine boulder and rock field, Subalpine coniferous forest, Upper montane coniferous forest Rocky, Serpentine 1675 2900 5495 9515 Yes 1974-01-01 Photo of Eriogonum alpinum
Eric White 2010
Eriogonum apricum var. apricum Ione buckwheat Polygonaceae perennial herb Jul-Oct FE CE G2T1 S1 1B.1 SB_UCBG Development, Improper burning regime, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral (openings, Ione soil) 60 145 195 475 Yes 1974-01-01
No Photo Available
Eriogonum apricum var. prostratum Irish Hill buckwheat Polygonaceae perennial herb Jun-Jul FE CE G2T1 S1 1B.1 Development, Grazing, Mining, ORV activity, Road/trail construction/maint. Chaparral (openings, Ione soil) 90 120 295 395 Yes 1974-01-01
No Photo Available
Dieteria asteroides var. lagunensis Mt. Laguna aster Asteraceae perennial herb (May)Jul-Aug None CR G5?T2 S1 2B.1 BLM_S; SB_CRES; USFS_S Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland, Lower montane coniferous forest 790 2400 2590 7875 1988-01-01
No Photo Available
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
Noccaea fendleri ssp. californica Kneeland Prairie pennycress Brassicaceae perennial herb May-Jun FE None G5?T1 S1 1B.1 SB_UCSC Development, Grazing, Road/trail construction/maint. Coastal prairie (serpentinite) 760 815 2495 2675 Yes 1980-01-01
No Photo Available
Physaria kingii ssp. bernardina San Bernardino Mountains bladderpod Brassicaceae perennial herb May-Jun FE None G5T1 S1 1B.1 SB_CalBG/RSABG Dam/Inundation, Development, Foot traffic/trampling, Mining, 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, Pinyon and juniper woodland, Subalpine coniferous forest Carbonate (usually) 1850 2700 6070 8860 Yes 1974-01-01
No Photo Available
Lessingia germanorum San Francisco lessingia Asteraceae annual herb (Jun)Jul-Nov FE CE G1 S1 1B.1 Development, Non-native plant impacts, Other Coastal scrub (remnant dunes) 25 110 80 360 Yes 1980-01-01 Photo of Lessingia germanorum
© 2019 Aaron Schusteff
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 Photo of Lewisia congdonii
© 2010 Aaron Schusteff
Phacelia argentea sand dune phacelia Hydrophyllaceae perennial herb Jun-Aug FT None G2 S1 1B.1 SB_BerrySB Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Coastal dunes 3 25 10 80 1974-01-01 Photo of Phacelia argentea
© 2012 Genevieve K Walden
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
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
Eriogonum butterworthianum Butterworth's buckwheat Polygonaceae perennial herb Jun-Jul None CR G2 S2 1B.3 SB_UCSC; USFS_S Foot traffic/trampling, Other Chaparral (sandstone), Valley and foothill grassland Sandy 585 740 1920 2430 Yes 1974-01-01
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 thornei Thorne's buckwheat Polygonaceae perennial shrub (Jun)Jul-Aug None CE G1 S1 1B.2 SB_CalBG/RSABG Improper burning regime, Mining, Road/trail construction/maint. Pinyon and juniper woodland (gravelly) 1800 1830 5905 6005 Yes 1974-01-01
No Photo Available
Eriogonum giganteum var. compactum Santa Barbara Island buckwheat Polygonaceae perennial deciduous shrub May-Aug(Sep) None CR G2T2 S2 1B.3 SB_CalBG/RSABG; SB_USDA Erosion/runoff, Foot traffic/trampling, Other Coastal bluff scrub (usually rocky) 10 300 35 985 Yes 1974-01-01
No Photo Available
Eriogonum grande var. timorum San Nicolas Island buckwheat Polygonaceae perennial herb Mar-Oct None CE G4T1 S1 1B.1 Coastal bluff scrub 10 215 35 705 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 kennedyi var. austromontanum southern mountain buckwheat Polygonaceae perennial herb Jun-Sep FT None G4T2 S2 1B.2 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, 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 Lower montane coniferous forest (gravelly), Pebble (Pavement) plain 1770 2890 5805 9480 Yes 1974-01-01
No Photo Available
Eriogonum twisselmannii Twisselmann's buckwheat Polygonaceae perennial herb Jun-Sep None CR G2 S2 1B.2 USFS_S Foot traffic/trampling, Logging, Other Upper montane coniferous forest (granitic) 2375 2805 7790 9205 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 serpentinite, roadcuts), Coastal scrub, Lower montane coniferous forest 45 330 150 1085 Yes 1974-01-01
No Photo Available
Eryngium aristulatum var. parishii San Diego button-celery Apiaceae annual/perennial herb Apr-Jun FE CE G5T1 S1 1B.1 SB_CalBG/RSABG; SB_CRES Agriculture, Altered flood/tidal/hydrologic regime, 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., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing Coastal scrub, Valley and foothill grassland, Vernal pools Mesic 20 620 65 2035 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 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
Erysimum capitatum var. angustatum Contra Costa wallflower Brassicaceae perennial herb Mar-Jul FE CE G5T1 S1 1B.1 SB_CalBG/RSABG Development, Disking, Non-native plant impacts, Road/trail construction/maint. Inland dunes 3 20 10 65 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
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 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 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 Photo of Fritillaria striata
© 2013 Aaron Schusteff
Galium angustifolium ssp. borregoense Borrego bedstraw Rubiaceae perennial herb Mar(May) None CR G5T3? S3? 1B.3 BLM_S; SB_CalBG/RSABG Foot traffic/trampling, Non-native plant impacts Sonoran desert scrub (rocky) 350 1250 1150 4100 Yes 1974-01-01 Photo of Galium angustifolium ssp. borregoense
© 2014 Keir Morse
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 californicum ssp. sierrae El Dorado bedstraw Rubiaceae perennial herb May-Jun FE CR G5T1 S1 1B.2 SB_CalBG/RSABG; SB_UCBG Development, Disease, Disking, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland, Lower montane coniferous forest Gabbroic 100 585 330 1920 Yes 1974-01-01 Photo of Galium californicum ssp. sierrae
© 2019 John Doyen
Galium catalinense ssp. acrispum San Clemente Island bedstraw Rubiaceae perennial deciduous shrub Mar-May(Aug) None CE G4T3 S3 1B.3 SB_CalBG/RSABG; SB_CRES Valley and foothill grassland 25 275 80 900 Yes 1984-01-01 Photo of Galium catalinense ssp. acrispum
© 2011 Michelle Cloud-Hughes
Gilia tenuiflora ssp. arenaria Monterey gilia Polemoniaceae annual herb Apr-Jun FE CT G3G4T2 S2 1B.2 SB_CalBG/RSABG Biocides, Development, Erosion/runoff, Foot traffic/trampling, Landfill, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral (maritime), Cismontane woodland, Coastal dunes, Coastal scrub Openings, Sandy 0 45 0 150 Yes 1980-01-01 Photo of Gilia tenuiflora ssp. arenaria
© 2021 Neal Kramer
Gilia tenuiflora ssp. hoffmannii Hoffmann's slender-flowered gilia Polemoniaceae annual herb Apr-May FE None G3G4T1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Erosion/runoff, Non-native plant impacts Coastal dunes, Coastal scrub Loam, Openings, Sandy 10 30 35 100 Yes 1974-01-01 Photo of Gilia tenuiflora ssp. hoffmannii
© 2000 John Game
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 Photo of Gratiola heterosepala
©2004 Carol W. Witham
Grindelia fraxinipratensis Ash Meadows gumplant Asteraceae perennial herb Jun-Oct FT None G2 S1 1B.2 SB_CalBG/RSABG Foot traffic/trampling, Non-native animal impacts, Surface water diversion Meadows and seeps (mesic clay) 635 700 2085 2295 1980-01-01 Photo of Grindelia fraxinipratensis
© 2010 James M. Andre
Helianthus niveus ssp. tephrodes Algodones Dunes sunflower Asteraceae perennial herb Sep-May None CE G4T2T3 S1 1B.2 BLM_S; SB_CalBG/RSABG; SB_USDA ORV activity, Other Desert dunes 50 100 165 330 1974-01-01 Photo of Helianthus niveus ssp. tephrodes
© 2014 Keir Morse
Deinandra arida Red Rock tarplant Asteraceae annual herb Apr-Nov None CR G1 S1 1B.2 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 Photo of Deinandra arida
© 2012 Neal Kramer
Deinandra increscens ssp. villosa Gaviota tarplant Asteraceae annual herb May-Oct FE CE G3T2 S2 1B.1 SB_CalBG/RSABG; SB_SBBG Agriculture, Biocides, Development, Disking, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal bluff scrub, Coastal scrub, Valley and foothill grassland 20 430 65 1410 Yes 1988-01-01 Photo of Deinandra increscens ssp. villosa
© 2002 Kevin Merk
Deinandra minthornii Santa Susana tarplant Asteraceae perennial deciduous shrub Jul-Nov None CR G2 S2 1B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Coastal scrub Rocky 280 760 920 2495 Yes 1974-01-01
No Photo Available
Deinandra mohavensis Mojave tarplant Asteraceae annual herb (Jan-May)Jun-Oct None CE G3 S3 1B.3 BLM_S; SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Development, Disking, Foot traffic/trampling, Grazing, Logging, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Wood cutting or brush clearing Chaparral, Coastal scrub, Riparian scrub Mesic 640 1600 2100 5250 Yes 1974-01-01
No Photo Available
Holocarpha macradenia Santa Cruz tarplant Asteraceae annual herb Jun-Oct FT CE G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Agriculture, Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal prairie, Coastal scrub, Valley and foothill grassland Clay (often), Sandy 10 220 35 720 Yes 1974-01-01 Photo of Holocarpha macradenia
© 2011 Dylan Neubauer
Ivesia callida Tahquitz ivesia Rosaceae perennial herb Jul-Sep None CR G1 S1 1B.3 SB_CalBG/RSABG; USFS_S Road/trail construction/maint. Upper montane coniferous forest (granitic, rocky) 2410 2450 7905 8040 Yes 1974-01-01 Photo of Ivesia callida
2009 Jordan Zylstra
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 Photo of Ivesia webberi
© 2007 Steve Matson
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 Photo of Lasthenia burkei
© 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 Photo of Lasthenia conjugens
© 2013 Neal Kramer
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 Photo of Layia carnosa
© 2007 Aaron Schusteff
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
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 occidentale western lily Liliaceae perennial bulbiferous herb Jun-Jul FE CE G1G2 S1 1B.1 SB_BerrySB Development, Foot traffic/trampling, Grazing, ORV activity, Other, Over-collecting/poaching, Road/trail construction/maint. Bogs and fens, Coastal bluff scrub, Coastal prairie, Coastal scrub, Marshes and swamps (freshwater), North Coast coniferous forest (openings) 2 185 5 605 1974-01-01 Photo of Lilium occidentale
© 2018 Jason Matthias Mills
Lilium pardalinum ssp. pitkinense Pitkin Marsh lily Liliaceae perennial bulbiferous herb Jun-Jul FE CE G5T1 S1 1B.1 SB_BerrySB; SB_CalBG/RSABG; SB_USDA Development, Erosion/runoff, Feral pigs, Grazing, Groundwater pumping, Non-native plant impacts, Other, Over-collecting/poaching, Surface water diversion Cismontane woodland, Marshes and swamps (freshwater), Meadows and seeps Mesic, Sandy 35 65 115 215 Yes 1974-01-01 Photo of Lilium pardalinum ssp. pitkinense
© 2020 Jason Matthias Mills
Limnanthes bakeri Baker's meadowfoam Limnanthaceae annual herb Apr-May None CR G1 S1 1B.1 SB_UCBG; SB_USDA 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 Photo of Limnanthes bakeri
© 2019 Zoya Akulova
Limnanthes douglasii ssp. sulphurea Point Reyes meadowfoam Limnanthaceae annual herb Mar-May None CE G4T1 S1 1B.2 SB_UCBG Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Coastal prairie, Marshes and swamps (freshwater), Meadows and seeps (mesic), Vernal pools 0 140 0 460 Yes 1974-01-01 Photo of Limnanthes douglasii ssp. sulphurea
© 2016 Aaron Arthur
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
Acmispon argophyllus var. adsurgens San Clemente Island bird's-foot trefoil Fabaceae perennial herb Apr-Jun None CE G5T2 S2 1B.1 SB_CalBG/RSABG; SB_CRES Coastal bluff scrub, Coastal scrub Rocky 15 395 50 1295 Yes 1974-01-01 Photo of Acmispon argophyllus var. adsurgens
© 2011 Dylan Neubauer
Acmispon dendroideus var. traskiae San Clemente Island lotus Fabaceae perennial shrub Feb-Aug FD CE G4T3 S3 1B.3 SB_CalBG/RSABG; SB_SBBG Development, Road/trail construction/maint. Coastal bluff scrub, Coastal scrub, Valley and foothill grassland 15 365 50 1200 Yes 1974-01-01 Photo of Acmispon dendroideus var. traskiae
© 2011 Dylan Neubauer
Lupinus constancei Lassics lupine Fabaceae perennial herb Jul FE CE G1 S1 1B.1 SB_BerrySB; USFS_S Improper burning regime, ORV activity, Other Lower montane coniferous forest (serpentinite) 1500 2000 4920 6560 Yes 1980-01-01 Photo of Lupinus constancei
Image by Amelia Ryan
Lupinus citrinus var. deflexus Mariposa lupine Fabaceae annual herb Apr-May None CT G2T1T2 S1S2 1B.2 Development, Grazing, ORV activity Chaparral, Cismontane woodland Granitic, Sandy 400 610 1310 2000 Yes 1974-01-01
No Photo Available
Lupinus milobakeri Milo Baker's lupine Fabaceae annual herb Jun-Sep None CT G1Q S1 1B.1 SB_CalBG/RSABG; SB_UCBG Agriculture, Biocides, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland (often roadsides), Valley and foothill grassland 395 430 1295 1410 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 padrecrowleyi Father Crowley's lupine Fabaceae perennial herb Jul-Aug None CR G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Great Basin scrub, Riparian forest, Riparian scrub, Upper montane coniferous forest Decomposed granitic 2200 4000 7220 13125 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
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
Berberis pinnata ssp. insularis island barberry Berberidaceae perennial evergreen shrub Feb-May FE CE G5T1 S1 1B.2 SB_SBBG Erosion/runoff Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub Rocky 75 400 245 1310 Yes 1980-01-01
No Photo Available
Malacothamnus clementinus San Clemente Island bushmallow Malvaceae perennial deciduous shrub Mar-Aug FD CE G2G3 S2S3 1B.1 Erosion/runoff, Military operations, Vandalism/dumping/litter Valley and foothill grassland (rocky) 10 275 35 900 Yes 1974-01-01 Photo of Malacothamnus clementinus
© 2011 Dylan Neubauer
Malacothamnus fasciculatus var. nesioticus Santa Cruz Island bushmallow Malvaceae perennial deciduous shrub Apr-Jul FE CE G4T1 S1 1B.1 Erosion/runoff, Improper burning regime, Non-native plant impacts, Other Chaparral, Coastal scrub Rocky 15 210 50 690 Yes 1974-01-01 Photo of Malacothamnus fasciculatus var. nesioticus
© 2009 Gary A. Monroe
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
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
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 oregana ssp. valida Kenwood Marsh checkerbloom Malvaceae perennial rhizomatous herb Jun-Sep FE CE G5T1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Agriculture, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Surface water diversion Marshes and swamps (freshwater) 115 150 375 490 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 stipularis Scadden Flat checkerbloom Malvaceae perennial rhizomatous herb Jul-Aug None CE G1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Biocides, Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Marshes and swamps (montane freshwater) 700 730 2295 2395 Yes 1980-01-01
No Photo Available
Silene greenei ssp. angustifolia Red Mountain catchfly Caryophyllaceae perennial herb May-Jun None CE G5T1 S1 1B.2 BLM_S Erosion/runoff, Logging, Mining, Other, Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Lower montane coniferous forest Rocky, Serpentine (usually) 425 2085 1395 6840 Yes 1980-01-01 Photo of Silene greenei ssp. angustifolia
© 2015 Cherilyn Burton
Monardella viminea willowy monardella Lamiaceae perennial herb Jun-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG; SB_CRES Altered flood/tidal/hydrologic regime, Channelization, 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, Coastal scrub, Riparian forest, Riparian scrub, Riparian woodland Alluvial Terraces, Washes 50 225 165 740 Yes 1980-01-01 Photo of Monardella viminea
© 2015 Keir Morse
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 leucocephala ssp. pauciflora few-flowered navarretia Polemoniaceae annual herb May-Jun FE CT G4T1 S1 1B.1 BLM_S; SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Feral pigs, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Vernal pools (volcanic ash) 400 855 1310 2805 Yes 1974-01-01 Photo of Navarretia leucocephala ssp. pauciflora
© 2013 Jake Ruygt
Navarretia leucocephala ssp. plieantha many-flowered navarretia Polemoniaceae annual herb May-Jun FE CE G4T1 S1 1B.2 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Road/trail construction/maint. Vernal pools (volcanic ash) 30 950 100 3115 Yes 1974-01-01
No Photo Available
Nemacladus twisselmannii var. twisselmannii Twisselmann's nemacladus Campanulaceae annual herb Jul None CR G1T1 S1 1B.2 USFS_S Other Upper montane coniferous forest (granitic, sandy or rocky) 2240 2450 7350 8040 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
Nolina interrata Dehesa nolina Ruscaceae perennial herb Jun-Jul None CE G1G2 S1S2 1B.1 SB_CalBG/RSABG; SB_CRES Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Improper burning regime, Non-native plant impacts, ORV activity, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral (gabbroic, metavolcanic, serpentinite) 185 855 605 2805 1974-01-01
No Photo Available
Oenothera avita ssp. eurekensis Eureka Dunes evening-primrose Onagraceae perennial rhizomatous herb Apr-Jun(Jul) FD CR G4?T2 S2 1B.2 SB_CalBG/RSABG Non-native plant impacts, ORV activity Desert dunes 850 1200 2790 3935 Yes 1974-01-01 Photo of Oenothera avita ssp. eurekensis
© Rick York and CNPS
Oenothera deltoides ssp. howellii Antioch Dunes evening-primrose Onagraceae perennial herb Mar-Sep FE CE G5T1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Biocides, Development, Foot traffic/trampling, Mining, Non-native plant impacts, Other, Recreational use (non-ORV) Inland dunes 0 30 0 100 Yes 1974-01-01
No Photo Available
Opuntia basilaris var. treleasei Bakersfield cactus Cactaceae perennial stem Apr-May FE CE G5T1 S1 1B.1 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Pollution, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Waterway bank protection/maintenance Chenopod scrub, Cismontane woodland, Valley and foothill grassland Gravelly (sometimes), Sandy (sometimes) 100 1450 330 4755 Yes 1974-01-01
No Photo Available
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 Photo of Orcuttia pilosa
© 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 Photo of Orcuttia tenuis
© 2013 Justy Leppert
Orcuttia viscida Sacramento Orcutt grass Poaceae annual herb Apr-Jul(Sep) FE CE G1 S1 1B.1 SB_CalBG/RSABG 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 Photo of Orcuttia viscida
© Rick York and CNPS
Ornithostaphylos oppositifolia Baja California birdbush Ericaceae perennial evergreen shrub Jan-Apr None CE G3 S1 2B.1 SB_CalBG/RSABG Improper burning regime, Other, Road/trail construction/maint., Vandalism/dumping/litter Chaparral 55 800 180 2625 1980-01-01
No Photo Available
Castilleja campestris var. succulenta succulent owl's-clover Orobanchaceae annual herb (hemiparasitic) (Mar)Apr-May FT CE G4?T2T3 S2S3 1B.2 Agriculture, Dam/Inundation, Development, Disking, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Vernal pools (often acidic) 50 750 165 2460 Yes 1984-01-01
No Photo Available
Acanthoscyphus parishii var. goodmaniana Cushenbury oxytheca Polygonaceae annual herb May-Oct FE None G4?T1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Road/trail construction/maint. Pinyon and juniper woodland (carbonate, talus) Carbonate, Sandy 1219 2377 4000 7800 Yes 1988-01-01 Photo of Acanthoscyphus parishii var. goodmaniana
© 2018 Michael Charters
Panicum acuminatum var. thermale Geysers panicum Poaceae annual/perennial herb Jun-Aug None CE G5T2Q S2 1B.2 SB_UCSC Development, Erosion/runoff, Feral pigs, Mining, Non-native plant impacts, Other, Road/trail construction/maint. Closed-cone coniferous forest, Riparian forest, Valley and foothill grassland Streambanks (sometimes) 305 2470 1000 8105 Yes 1974-01-01 Photo of Panicum acuminatum var. thermale
© Rick York and CNPS
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
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
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 Photo of Tuctoria greenei
©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
Leptosiphon croceus coast yellow leptosiphon Polemoniaceae annual herb Apr-Jun None CE G1 S1 1B.1 SB_UCBG Development, Erosion/runoff, Foot traffic/trampling, Insufficient population/stand size, Non-native plant impacts Coastal bluff scrub, Coastal prairie 10 150 35 490 Yes 2001-01-01 Photo of Leptosiphon croceus
© 2018 Neal Kramer
Phacelia insularis var. insularis northern Channel Islands phacelia Hydrophyllaceae annual herb Feb-Apr FE None G2T1 S1 1B.2 SB_SBBG Non-native plant impacts Coastal dunes, Valley and foothill grassland Sandy 0 215 0 705 Yes 1980-01-01
No Photo Available
Phlox hirsuta Yreka phlox Polemoniaceae perennial herb Apr-Jun FE CE G1 S1 1B.2 SB_CalBG/RSABG Development, Grazing, Logging, Non-native plant impacts, ORV activity, Over-collecting/poaching, Road/trail construction/maint., Vandalism/dumping/litter Lower montane coniferous forest, Upper montane coniferous forest Serpentine, Talus 820 1500 2690 4920 Yes 1980-01-01 Photo of Phlox hirsuta
©2015 John Doyen
Plagiobothrys diffusus San Francisco popcornflower Boraginaceae annual herb Mar-Jun None CE G1Q S1 1B.1 SB_UCSC Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Coastal prairie, Valley and foothill grassland 60 360 195 1180 Yes 1974-01-01
No Photo Available
Pleuropogon hooverianus North Coast semaphore grass Poaceae perennial rhizomatous herb Apr-Jun None CT G2 S2 1B.1 SB_BerrySB; SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Insufficient population/stand size, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Meadows and seeps, North Coast coniferous forest Mesic, Openings 10 671 35 2200 Yes 1974-01-01
No Photo Available
Poa atropurpurea San Bernardino blue grass Poaceae perennial rhizomatous herb (Apr)May-Jul(Aug) FE None G2 S2 1B.2 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter, Wood cutting or brush clearing Meadows and seeps (mesic) 1360 2455 4460 8055 Yes 1974-01-01
No Photo Available
Poa napensis Napa blue grass Poaceae perennial herb May-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing, ORV activity, Other, Road/trail construction/maint., Surface water diversion Meadows and seeps, Valley and foothill grassland Alkaline 100 200 330 655 Yes 1974-01-01
No Photo Available
Pseudobahia peirsonii San Joaquin adobe sunburst Asteraceae annual herb Feb-Apr FT CE G1 S1 1B.1 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion Cismontane woodland, Valley and foothill grassland Adobe, Clay 90 800 295 2625 Yes 1974-01-01
No Photo Available
Nasturtium gambelii Gambel's water cress Brassicaceae perennial rhizomatous herb Apr-Oct FE CT G1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Agriculture, Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Groundwater pumping, Hybridization, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Surface water diversion, Vandalism/dumping/litter Marshes and swamps (brackish, freshwater) 5 330 15 1085 1980-01-01
No Photo Available
Rorippa subumbellata Tahoe yellow cress Brassicaceae perennial rhizomatous herb May-Sep None CE G1 S1 1B.1 SB_BerrySB; SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter, Waterway bank protection/maintenance Lower montane coniferous forest, Meadows and seeps Decomposed granitic 1890 1905 6200 6250 1974-01-01
No Photo Available
Rosa minutifolia small-leaved rose Rosaceae perennial deciduous shrub Jan-Jun None CE G2G3 SX.C 2B.1 SB_CalBG/RSABG; SB_CRES Development, Non-native plant impacts, ORV activity, Wood cutting or brush clearing Chaparral, Coastal scrub 150 160 490 525 1988-01-01
No Photo Available
Sanicula saxatilis rock sanicle Apiaceae perennial herb Apr-May None CR G2 S2 1B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Chaparral, Valley and foothill grassland Rocky, Scree, Talus 620 1175 2035 3855 Yes 1974-01-01 Photo of Sanicula saxatilis
© 1998 John Game
Packera ganderi Gander's ragwort Asteraceae perennial herb Apr-Jun None CR G2 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Mining, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint. Chaparral (burned areas, gabbroic outcrops) 400 1200 1310 3935 Yes 1974-01-01
No Photo Available
Packera layneae Layne's ragwort Asteraceae perennial herb Apr-Aug FT CR G2 S2 1B.2 SB_CalBG/RSABG; SB_UCBG; SB_UCSC Agriculture, Biocides, Dam/Inundation, Development, Disking, Erosion/runoff, Grazing, Landfill, Logging, Mining, Non-native plant impacts, ORV activity, Other, Pollution, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland Gabbroic (sometimes), Rocky, Serpentine (sometimes) 200 1085 655 3560 Yes 1974-01-01
No Photo Available
Sibara filifolia Santa Cruz Island winged-rockcress Brassicaceae annual herb (Feb)Mar-Apr FE None G2 S2 1B.1 SB_CalBG/RSABG; SB_SBBG Foot traffic/trampling Coastal scrub (rocky, volcanic) Openings (often) 60 305 195 1000 Yes 1974-01-01 Photo of Sibara filifolia
© 2008 Kim M Klementowski
Sidalcea covillei Owens Valley checkerbloom Malvaceae perennial herb Apr-Jun None CE G2 S2 1B.1 BLM_S; SB_SBBG Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Foot traffic/trampling, Grazing, Groundwater pumping, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Chenopod scrub, Meadows and seeps Alkaline, Mesic 1095 1415 3595 4645 Yes 1974-01-01 Photo of Sidalcea covillei
© 2001 Larry Blakely
Sidalcea hickmanii ssp. anomala Cuesta Pass checkerbloom Malvaceae perennial herb May-Jun None CR G2T1 S1 1B.2 SB_CalBG/RSABG; SB_SBBG; USFS_S Development, Erosion/runoff, Feral pigs, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Closed-cone coniferous forest Rocky, Serpentine 600 800 1970 2625 Yes 1974-01-01
No Photo Available
Sidalcea hickmanii ssp. parishii Parish's checkerbloom Malvaceae perennial herb (May)Jun-Aug None CR G2T1 S1 1B.2 SB_CalBG/RSABG; SB_SBBG; USFS_S Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, 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, Lower montane coniferous forest 1000 2499 3280 8200 Yes 1974-01-01
No Photo Available
Streptanthus albidus ssp. albidus Metcalf Canyon jewelflower Brassicaceae annual herb Apr-Jul FE None G2T1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Biocides, Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Valley and foothill grassland (serpentinite) 45 800 150 2625 Yes 1974-01-01 Photo of Streptanthus albidus ssp. albidus
© 2015 Aaron Schusteff
Streptanthus glandulosus ssp. niger Tiburon jewelflower Brassicaceae annual herb May-Jun FE CE G4T1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Valley and foothill grassland (serpentinite) 30 150 100 490 Yes 1974-01-01
No Photo Available
Suaeda californica California seablite Chenopodiaceae perennial evergreen shrub Jul-Oct FE None G1 S1 1B.1 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Marshes and swamps (coastal salt) 0 15 0 50 Yes 1988-01-01
No Photo Available
Swallenia alexandrae Eureka Valley dune grass Poaceae perennial rhizomatous herb Apr-Jun FT CR G2 S2 1B.2 SB_CalBG/RSABG ORV activity Desert dunes 850 1280 2790 4200 Yes 1974-01-01
No Photo Available
Taraxacum californicum California dandelion Asteraceae perennial herb May-Aug FE None G1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Hybridization, Insufficient population/stand size, 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) 1620 2800 5315 9185 Yes 1974-01-01
No Photo Available
Thysanocarpus conchuliferus Santa Cruz Island fringepod Brassicaceae annual herb Mar-Apr(May) FE None G2? S2 1B.2 SB_SBBG Chaparral, Cismontane woodland Rocky 45 655 150 2150 Yes 1974-01-01
No Photo Available
Trifolium amoenum two-fork clover Fabaceae annual herb Apr-Jun FE None G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG; SB_USDA Development, Erosion/runoff Coastal bluff scrub, Valley and foothill grassland (sometimes serpentinite) 5 415 15 1360 Yes 1974-01-01
No Photo Available
Trifolium polyodon Pacific Grove clover Fabaceae annual herb Apr-Jun(Jul) None CR G1 S1 1B.1 BLM_S; SB_USDA Altered flood/tidal/hydrologic regime, Biocides, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Closed-cone coniferous forest, Coastal prairie, Meadows and seeps, Valley and foothill grassland Granitic (sometimes), Mesic 5 425 15 1395 Yes 1974-01-01
No Photo Available
Trifolium trichocalyx Monterey clover Fabaceae annual herb Apr-Jun FE CE G1 S1 1B.1 SB_UCBG; SB_USDA Development, Improper burning regime, Logging, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Closed-cone coniferous forest (burned areas, openings, sandy) 30 305 100 1000 Yes 1974-01-01
No Photo Available
Verbena californica Red Hills vervain Verbenaceae perennial herb May-Sep FT CT G2 S2 1B.1 SB_CalBG/RSABG; SB_UCBG Altered flood/tidal/hydrologic regime, Development, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter Cismontane woodland, Valley and foothill grassland Mesic, Seeps (usually), Serpentine (usually) 260 400 855 1310 Yes 1984-01-01
No Photo Available
Verbesina dissita big-leaved crownbeard Asteraceae perennial herb (Mar)Apr-Jul FT CT G1G2 S1 1B.1 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Coastal scrub 45 205 150 675 1984-01-01
No Photo Available
Arctostaphylos bakeri ssp. sublaevis Cedars manzanita Ericaceae perennial evergreen shrub Feb-May None CR G2T2 S2 1B.2 BLM_S; SB_UCSC Development, Mining, Road/trail construction/maint. Chaparral, Closed-cone coniferous forest Seeps, Serpentine 185 760 605 2495 Yes 1994-01-01 Photo of Arctostaphylos bakeri ssp. sublaevis
© 2012 John Game
Arctostaphylos glandulosa ssp. crassifolia Del Mar manzanita Ericaceae perennial evergreen shrub Jun-Apr FE None G5T2 S2 1B.1 SB_CRES Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Hybridization, Improper burning regime, Insufficient population/stand size, 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 Chaparral (maritime, sandy) 0 365 0 1200 1974-01-01 Photo of Arctostaphylos glandulosa ssp. crassifolia
© 2012 Neal Kramer
Ceanothus ophiochilus Vail Lake ceanothus Rhamnaceae perennial evergreen shrub Feb-Mar FT CE G1 S1 1B.1 SB_CalBG/RSABG Development, Hybridization, Improper burning regime, Non-native plant impacts, Road/trail construction/maint. Chaparral (gabbroic, pyroxenite-rich outcrops) 580 1065 1905 3495 Yes 1994-01-01
No Photo Available
Chorizanthe pungens var. hartwegiana Ben Lomond spineflower Polygonaceae annual herb Apr-Jul FE None G2T1 S1 1B.1 SB_UCSC Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest (maritime ponderosa pine sandhills) 90 610 295 2000 Yes 1994-01-01
No Photo Available
Chorizanthe robusta var. hartwegii Scotts Valley spineflower Polygonaceae annual herb Apr-Jul FE None G2T1 S1 1B.1 SB_UCSC Development, Non-native plant impacts, Other, Road/trail construction/maint. Meadows and seeps (sandy), Valley and foothill grassland (mudstone, Purisima outcrops) 230 245 755 805 Yes 1994-01-01
No Photo Available
Neviusia cliftonii Shasta snow-wreath Rosaceae perennial deciduous shrub Apr-Jun None CT G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Road/trail construction/maint. Cismontane woodland, Lower montane coniferous forest, Riparian woodland Carbonate (sometimes), Streambanks (often), Volcanic 300 590 985 1935 Yes 1994-01-01 Photo of Neviusia cliftonii
©2008 Steve Matson
Deinandra bacigalupii Livermore tarplant Asteraceae annual herb Jun-Oct None CE G1 S1 1B.1 SB_UCBG Agriculture, Biocides, Development, Disking, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Vandalism/dumping/litter Meadows and seeps (alkaline) 150 185 490 605 Yes 2001-01-01
No Photo Available
Dudleya cymosa ssp. agourensis Agoura Hills dudleya Crassulaceae perennial herb May-Jun FT None G5T1 S1 1B.2 SB_CalBG/RSABG; SB_SBBG Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland Rocky, Volcanic 200 500 655 1640 Yes 1980-01-01 Photo of Dudleya cymosa ssp. agourensis
© 2013 Adam Searcy
Polygonum hickmanii Scotts Valley polygonum Polygonaceae annual herb May-Aug FE CE G1 S1 1B.1 Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Insufficient population/stand size, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Valley and foothill grassland (mudstone, sandstone) 210 250 690 820 Yes 2001-01-01
No Photo Available
Arctostaphylos pacifica Pacific manzanita Ericaceae evergreen shrub Feb-Apr None CE G1 S1 1B.1 SB_UCSC Improper burning regime, Non-native plant impacts, ORV activity, Other Chaparral, Coastal scrub 330 330 1085 1085 Yes 1974-01-01
No Photo Available
Diplacus vandenbergensis Vandenberg monkeyflower Phrymaceae annual herb Apr-Jun FE None G1 S1 1B.1 SB_SBBG Development, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Cismontane woodland, Coastal dunes Disturbed areas (often), Sandy 60 120 195 395 Yes 2006-06-07 Photo of Diplacus vandenbergensis
© 2019 Adonis (Don) Tate
Hesperocyparis abramsiana var. butanoensis Butano Ridge cypress Cupressaceae perennial evergreen tree Oct FT CE G1T1 S1 1B.2 SB_CalBG/RSABG Improper burning regime, Logging, Mining Chaparral, Closed-cone coniferous forest, Lower montane coniferous forest Sandstone 400 490 1310 1610 Yes 2011-12-19 Photo of Hesperocyparis abramsiana var. butanoensis
© 2011 Joey Malone
Erysimum menziesii Menzies' wallflower Brassicaceae perennial herb Mar-Sep FE CE G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG 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 Coastal dunes 0 35 0 115 Yes 1974-01-01 Photo of Erysimum menziesii
©2007 Steve Matson
Zeltnera namophila spring-loving centaury Gentianaceae annual herb Jul-Sep FT None G2 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Groundwater pumping, ORV activity Meadows and seeps (alkaline) 400 640 1310 2100 2022-02-25
No Photo Available

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 15 May 2024].