CNPS

CNPS Rare Plant Inventory


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169 matches found. Click on scientific name for details

Search Criteria: Common Name starts with B

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
Amsinckia lunaris bent-flowered fiddleneck Boraginaceae annual herb Mar-Jun None None G3 S3 1B.2 BLM_S; SB_UCBG; SB_UCSC Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Coastal bluff scrub, Valley and foothill grassland 3 500 10 1640 Yes 1974-01-01 Photo of Amsinckia lunaris
© 2011 Neal Kramer
Eriogonum spectabile Barron's buckwheat Polygonaceae perennial evergreen shrub Jul-Sep None None G1 S1 1B.1 USFS_S Insufficient population/stand size, Logging Upper montane coniferous forest Rocky (sometimes), Sandy (sometimes) 2010 2050 6595 6725 Yes 2004-01-01
No Photo Available
Arctostaphylos obispoensis Bishop manzanita Ericaceae perennial evergreen shrub Feb-Jun None None G3 S3 4.3 SB_UCSC; USFS_S Chaparral, Cismontane woodland, Closed-cone coniferous forest Rocky, Serpentine 150 1005 490 3295 Yes 1974-01-01
No Photo Available
Arctostaphylos silvicola Bonny Doon manzanita Ericaceae perennial evergreen shrub Jan-Mar None None G1 S1 1B.2 SB_CalBG/RSABG Development, Erosion/runoff, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Closed-cone coniferous forest, Lower montane coniferous forest 120 600 395 1970 Yes 1974-01-01
No Photo Available
Calycadenia oppositifolia Butte County calycadenia Asteraceae annual herb Apr-Jul None None G3 S3 4.2 USFS_S Chaparral, Cismontane woodland, Lower montane coniferous forest, Meadows and seeps, Valley and foothill grassland Granitic (sometimes), Openings, Serpentine (sometimes), Volcanic 90 945 295 3100 Yes 1974-01-01
No Photo Available
Calystegia atriplicifolia ssp. buttensis Butte County morning-glory Convolvulaceae perennial rhizomatous herb May-Jul None None G5T3 S3 4.2 Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, ORV activity, Other, Road/trail construction/maint. Chaparral, Lower montane coniferous forest, Valley and foothill grassland Roadsides (sometimes), Rocky 565 1524 1855 5000 Yes 1984-01-01 Photo of Calystegia atriplicifolia ssp. buttensis
©2018 Sierra Pacific Industries
Abies bracteata bristlecone fir Pinaceae perennial evergreen tree None None G2G3 S2S3 1B.3 IUCN_NT; SB_CalBG/RSABG; USFS_S Improper burning regime, Military operations, Other, Road/trail construction/maint., Surface water diversion, Wood cutting or brush clearing Broadleafed upland forest, Chaparral, Lower montane coniferous forest, Riparian woodland Rocky 183 1555 600 5100 Yes 1974-01-01 Photo of Abies bracteata
© 2019 Zoya Akulova
Agrostis blasdalei Blasdale's bent grass Poaceae perennial rhizomatous herb May-Jul None None G2G3 S2 1B.2 BLM_S; SB_UCSC Agriculture, Altered flood/tidal/hydrologic regime, Development, Disease, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal bluff scrub, Coastal dunes, Coastal prairie 0 150 0 490 Yes 1974-01-01 Photo of Agrostis blasdalei
© 2001 Doreen L. Smith
Allium hoffmanii Beegum onion Alliaceae perennial bulbiferous herb Jun-Jul None None G4 S4 4.3 Lower montane coniferous forest (serpentinite) 1100 1800 3610 5905 Yes 1974-01-01 Photo of Allium hoffmanii
©2019 Steve Matson
Calystegia malacophylla var. berryi Berry's morning-glory Convolvulaceae perennial rhizomatous herb Jul-Aug None None G4G5T2Q S2 3.3 Chaparral, Lower montane coniferous forest 610 2440 2000 8005 Yes 1980-01-01
No Photo Available
Dudleya alainae Banner dudleya Crassulaceae perennial herb Apr-Jul None None G2Q S2 3.2 SB_CalBG/RSABG; SB_CRES Chaparral, Lower montane coniferous forest, Sonoran desert scrub Rocky 740 1200 2430 3935 Yes 1988-01-01
No Photo Available
Dudleya abramsii ssp. bettinae Betty's dudleya Crassulaceae perennial herb May-Jul None None G4T2 S2 1B.2 SB_CalBG/RSABG Development, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Coastal scrub, Valley and foothill grassland Rocky, Serpentine 20 180 65 590 Yes 1980-01-01
No Photo Available
Clarkia breweri Brewer's clarkia Onagraceae annual herb Apr-Jun None None G4 S4 4.2 SB_CalBG/RSABG; SB_SBBG; SB_UCBG Chaparral, Cismontane woodland, Coastal scrub Serpentine (often) 215 1115 705 3660 Yes 1974-01-01
No Photo Available
Clarkia rostrata beaked clarkia Onagraceae annual herb Apr-May None None G2G3 S2S3 1B.3 BLM_S; SB_CalBG/RSABG; SB_UCBG Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland 60 500 195 1640 Yes 1974-01-01
No Photo Available
Boechera bodiensis Bodie Hills rockcress Brassicaceae perennial herb Jun-Jul(Aug) None None G3 S3 1B.3 BLM_S; USFS_S Foot traffic/trampling, Grazing, Mining, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Alpine boulder and rock field, Great Basin scrub, Pinyon and juniper woodland, Subalpine coniferous forest 2085 3530 6840 11580 1984-01-01
No Photo Available
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 tularensis Bakersfield smallscale Chenopodiaceae annual herb Jun-Oct None CE GX SX 1A Agriculture, Groundwater pumping, Hybridization, Other Chenopod scrub 90 200 295 655 Yes 1974-01-01
No Photo Available
Crocanthemum suffrutescens Bisbee Peak rush-rose Cistaceae perennial evergreen shrub Apr-Aug None None G2?Q S2? 3.2 Development, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral Burned areas (often), Disturbed areas (often), Gabbroic (often) 75 670 245 2200 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 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
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
Cusickiella quadricostata Bodie Hills cusickiella Brassicaceae perennial herb May-Jul None None G2 S2 1B.2 BLM_S; SB_SBBG Erosion/runoff, Foot traffic/trampling, Grazing, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Great Basin scrub, Pinyon and juniper woodland Clay (sometimes), Rocky (sometimes) 2000 2800 6560 9185 1974-01-01
No Photo Available
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 breweri Brewer's milk-vetch Fabaceae annual herb Apr-Jun None None G3 S3 4.2 SB_CalBG/RSABG Chaparral, Cismontane woodland, Meadows and seeps, Valley and foothill grassland (openings, often gravelly) Serpentine (often), Volcanic 90 730 295 2395 Yes 1974-01-01
No Photo Available
Astragalus funereus black milk-vetch Fabaceae perennial herb Mar-May None None G2 S2 1B.2 BLM_S Mojavean desert scrub (sometimes carbonate, clay, gravelly, rocky) 1280 2100 4200 6890 1980-01-01
No Photo Available
Astragalus lentiginosus var. borreganus Borrego milk-vetch Fabaceae annual herb Feb-May None None G5T5? S4 4.3 SB_CalBG/RSABG; SB_USDA Mojavean desert scrub, Sonoran desert scrub Sandy 30 895 100 2935 1974-01-01
No Photo Available
Astragalus leucolobus Big Bear Valley woollypod Fabaceae perennial herb May-Jul None None G2 S2 1B.2 BLM_S; IUCN_VU; SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Lower montane coniferous forest, Pebble (Pavement) plain, Pinyon and juniper woodland, Upper montane coniferous forest Rocky 1100 2885 3610 9465 Yes 1974-01-01
No Photo Available
Astragalus umbraticus Bald Mountain milk-vetch Fabaceae perennial herb May-Aug None None G4 S2 2B.2 Foot traffic/trampling, Logging, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland, Lower montane coniferous forest Roadsides (sometimes) 150 1250 490 4100 1974-01-01 Photo of Astragalus umbraticus
©2013 Scot Loring
Balsamorhiza macrolepis big-scale balsamroot Asteraceae perennial herb Mar-Jun None None G2 S2 1B.2 BLM_S; USFS_S Development, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Valley and foothill grassland Serpentine (sometimes) 45 1555 150 5100 Yes 1974-01-01 Photo of Balsamorhiza macrolepis
©1998 Dean Wm. Taylor
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
Calamagrostis bolanderi Bolander's reed grass Poaceae perennial rhizomatous herb May-Aug None None G4 S4 4.2 Bogs and fens, Broadleafed upland forest, Closed-cone coniferous forest, Coastal scrub, Marshes and swamps (freshwater), Meadows and seeps (mesic), North Coast coniferous forest Mesic 0 455 0 1495 Yes 1974-01-01 Photo of Calamagrostis bolanderi
©2009 Zoya Akulova
Eremothera boothii ssp. boothii Booth's evening-primrose Onagraceae annual herb Apr-Sep None None G5T4 S3 2B.3 Development, Foot traffic/trampling, Grazing, ORV activity, Other, Road/trail construction/maint. Joshua tree "woodland", Pinyon and juniper woodland 815 2400 2675 7875 1980-01-01
No Photo Available
Hesperolinon breweri Brewer's western flax Linaceae annual herb May-Jul None None G2 S2 1B.2 Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Cismontane woodland, Valley and foothill grassland Serpentine (usually) 30 945 100 3100 Yes 1974-01-01 Photo of Hesperolinon breweri
© 2014 Neal Kramer
Chorizanthe blakleyi Blakley's spineflower Polygonaceae annual herb Apr-Jun None None G2 S2 1B.3 BLM_S; USFS_S Foot traffic/trampling, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Pinyon and juniper woodland 600 1600 1970 5250 Yes 1974-01-01
No Photo Available
Chorizanthe breweri Brewer's spineflower Polygonaceae annual herb Apr-Aug None None G3 S3 1B.3 BLM_S; SB_SBBG; USFS_S Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub Gravelly (sometimes), Rocky (sometimes), Serpentine 45 800 150 2625 Yes 1980-01-01
No Photo Available
Corethrogyne leucophylla branching beach aster Asteraceae perennial herb May-Dec None None G3Q S3 3.2 Closed-cone coniferous forest, Coastal dunes 3 60 10 195 Yes 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 bakeri Baker cypress Cupressaceae perennial evergreen tree None None G3 S3 4.2 IUCN_VU; SB_CalBG/RSABG; SB_KewBG; SB_USDA Chaparral, Lower montane coniferous forest Serpentine (sometimes), Volcanic (sometimes) 820 1995 2690 6545 1974-01-01 Photo of Hesperocyparis bakeri
© 2021 Scot Loring
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
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
Dudleya blochmaniae ssp. blochmaniae Blochman's dudleya Crassulaceae perennial herb Apr-Jun None None G3T2 S2 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Coastal bluff scrub, Coastal scrub, Valley and foothill grassland Clay (often), Rocky, Serpentine 5 450 15 1475 1974-01-01 Photo of Dudleya blochmaniae ssp. blochmaniae
© 2011 Aaron E. Sims
Dudleya virens ssp. virens bright green dudleya Crassulaceae perennial herb Apr-Jul None None G3?T2 S2 1B.2 SB_CRES Chaparral, Coastal bluff scrub, Coastal scrub Rocky 5 400 15 1310 1974-01-01
No Photo Available
Empetrum nigrum black crowberry Empetraceae perennial evergreen shrub Apr-Jun None None G5 S1? 2B.2 Foot traffic/trampling, Grazing Coastal bluff scrub, Coastal prairie 10 200 35 655 1974-01-01 Photo of Empetrum nigrum
©2015 Dana York
Eriastrum brandegeeae Brandegee's eriastrum Polemoniaceae annual herb Apr-Aug None None G1Q S1 1B.1 BLM_S Development, Non-native plant impacts, ORV activity, Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland Sandy, Volcanic 425 840 1395 2755 Yes 1974-01-01
No Photo Available
Erigeron blochmaniae Blochman's leafy daisy Asteraceae perennial rhizomatous herb Jun-Aug None None G2 S2 1B.2 BLM_S; SB_SBBG Agriculture, Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal dunes, Coastal scrub 3 45 10 150 Yes 1974-01-01
No Photo Available
Eriogonum breedlovei var. breedlovei Breedlove's buckwheat Polygonaceae perennial herb Jun-Aug None None G3T2 S2 1B.2 SB_CalBG/RSABG; USFS_S Grazing, Logging, Mining, Wood cutting or brush clearing Pinyon and juniper woodland, Upper montane coniferous forest Carbonate (often) 1890 2590 6200 8500 Yes 1974-01-01
No Photo Available
Salvia brandegeei Brandegee's sage Lamiaceae perennial evergreen shrub Apr-May None None G3 S2 1B.2 SB_CalBG/RSABG; SB_SBBG Erosion/runoff Chaparral, Closed-cone coniferous forest, Coastal scrub 5 200 15 655 1974-01-01
No Photo Available
Phacelia stellaris Brand's star phacelia Hydrophyllaceae annual herb Mar-Jun None None G1 S1 1B.1 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV) Coastal dunes, Coastal scrub 1 400 5 1310 1994-01-01
No Photo Available
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
Eriophyllum mohavense Barstow woolly sunflower Asteraceae annual herb Mar-May None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_USDA Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chenopod scrub, Mojavean desert scrub, Playas 500 960 1640 3150 Yes 1974-01-01
No Photo Available
Fritillaria eastwoodiae Butte County fritillary Liliaceae perennial bulbiferous herb Mar-Jun None None G3Q S3 3.2 USFS_S Agriculture, Biocides, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Lower montane coniferous forest (openings) Serpentine (sometimes) 50 1500 165 4920 1974-01-01 Photo of Fritillaria eastwoodiae
©2009 Sierra Pacific Industries
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
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
Pyrrocoma uniflora var. gossypina Bear Valley pyrrocoma Asteraceae perennial herb Jul-Sep None None G5T1 S1 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Wood cutting or brush clearing Meadows and seeps, Pebble (Pavement) plain 1600 2300 5250 7545 Yes 1980-01-01
No Photo Available
Horkelia bolanderi Bolander's horkelia Rosaceae perennial herb (May)Jun-Aug None None G1 S1 1B.2 BLM_S Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, ORV activity, Road/trail construction/maint., Surface water diversion Chaparral, Lower montane coniferous forest, Meadows and seeps, Valley and foothill grassland Edges, Vernally Mesic 450 1100 1475 3610 Yes 1988-01-01 Photo of Horkelia bolanderi
© 2012 Barry Rice
Horkelia wilderae Barton Flats horkelia Rosaceae perennial herb May-Sep None None G1 S1 1B.1 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Recreational use (non-ORV), Road/trail construction/maint. Chaparral (edges), Lower montane coniferous forest, Upper montane coniferous forest 1675 2925 5495 9595 Yes 1974-01-01 Photo of Horkelia wilderae
© 2009 Thomas Stoughton
Iliamna bakeri Baker's globe mallow Malvaceae perennial herb Jun-Sep None None G4 S3 4.2 SB_UCSC Development, Grazing, Improper burning regime, Logging, Non-native plant impacts, Other, Road/trail construction/maint. Chaparral, Great Basin scrub, Lower montane coniferous forest (openings), Pinyon and juniper woodland Burned areas (often), Volcanic 1000 2500 3280 8205 1974-01-01 Photo of Iliamna bakeri
© 2021 Scot Loring
Ipomopsis effusa Baja California ipomopsis Polemoniaceae annual herb Apr-Jun None None G3? SH 2B.1 SB_CalBG/RSABG Chaparral, Sonoran desert scrub (alluvial fans) Sandy 0 100 0 330 1988-01-01 Photo of Ipomopsis effusa
© 2014 Aaron Schusteff
Ivesia baileyi var. baileyi Bailey's ivesia Rosaceae perennial herb May-Aug None None G5T4 S2 2B.3 SB_UCSC Logging, Other Great Basin scrub, Lower montane coniferous forest Rocky, Volcanic 1340 2600 4395 8530 1988-01-01 Photo of Ivesia baileyi var. baileyi
© 1990 Dean Wm. Taylor
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
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
Lepidium flavum var. felipense Blair Valley pepper-grass Brassicaceae annual herb Mar-May None None G5T1 S1 1B.2 SB_CalBG/RSABG Grazing, Insufficient population/stand size, Non-native plant impacts, ORV activity Pinyon and juniper woodland, Sonoran desert scrub Sandy 455 840 1495 2755 1980-01-01 Photo of Lepidium flavum var. felipense
© 2020 W. Juergen Schrenk
Lilium bolanderi Bolander's lily Liliaceae perennial bulbiferous herb Jun-Jul None None G4 S3S4 4.2 SB_UCSC Chaparral, Lower montane coniferous forest Serpentine 30 1600 100 5250 1974-01-01 Photo of Lilium bolanderi
© 2008 Keir Morse
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 floccosa ssp. bellingeriana Bellinger's meadowfoam Limnanthaceae annual herb Apr-Jun None None G4T3 S1 1B.2 USFS_S Foot traffic/trampling, Grazing, Road/trail construction/maint., Vandalism/dumping/litter Cismontane woodland, Meadows and seeps Mesic 290 1100 950 3610 1980-01-01 Photo of Limnanthes floccosa ssp. bellingeriana
© 2021 Scot Loring
Linanthus killipii Baldwin Lake linanthus Polemoniaceae annual herb May-Jul None None G1 S1 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Joshua tree "woodland", Meadows and seeps (alkaline), Pebble (Pavement) plain, Pinyon and juniper woodland 1700 2400 5580 7875 Yes 1974-01-01
No Photo Available
Malperia tenuis brown turbans Asteraceae annual herb (Feb)Mar-Apr None None G4? S2? 2B.3 SB_CalBG/RSABG; SB_USDA Development, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Vandalism/dumping/litter Sonoran desert scrub (sandy, gravelly) 15 335 50 1100 1974-01-01
No Photo Available
Erythranthe nudata bare monkeyflower Phrymaceae annual herb May-Jun None None G4 S4 4.3 Chaparral, Cismontane woodland Seeps, Serpentine 200 700 655 2295 Yes 1974-01-01 Photo of Erythranthe nudata
John Doyen 2015
Phacelia sericea var. ciliosa blue alpine phacelia Hydrophyllaceae perennial herb Jun-Aug None None G5T4T5 S3 2B.3 SB_UCSC Development, Grazing Great Basin scrub, Upper montane coniferous forest (rocky) 2100 2700 6890 8860 1994-01-01 Photo of Phacelia sericea var. ciliosa
©2019 John Doyen
Sidalcea pedata bird-foot checkerbloom Malvaceae perennial herb May-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Meadows and seeps (mesic), Pebble (Pavement) plain 1600 2500 5250 8205 Yes 1974-01-01
No Photo Available
Sidalcea robusta Butte County checkerbloom Malvaceae perennial rhizomatous herb Apr-Jun None None G2 S2 1B.2 BLM_S; SB_UCSC Agriculture, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Cismontane woodland 90 1600 295 5250 Yes 1974-01-01 Photo of Sidalcea robusta
© 2010 George W Hartwell
Atriplex depressa brittlescale Chenopodiaceae annual herb Apr-Oct None None G2 S2 1B.2 Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Disking, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV) Chenopod scrub, Meadows and seeps, Playas, Valley and foothill grassland, Vernal pools Alkaline, Clay 1 320 5 1050 Yes 1994-01-01 Photo of Atriplex depressa
© 2009 Zoya Akulova
Trifolium jokerstii Butte County golden clover Fabaceae annual herb Mar-May None None G2 S2 1B.2 BLM_S; SB_UCSC; SB_USDA Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV) Valley and foothill grassland (mesic), Vernal pools 50 480 165 1575 Yes 2001-01-01 Photo of Trifolium jokerstii
© 2008 George W Hartwell
Munzothamnus blairii Blair's munzothamnus Asteraceae perennial shrub Jul-Sep None None G3 S3 1B.2 Coastal bluff scrub, Coastal scrub Rocky 25 455 80 1495 Yes 1980-01-01 Photo of Munzothamnus blairii
© 2015 Richard Spellenberg
Grusonia pulchella beautiful cholla Cactaceae perennial stem May(Jun) None None G4 S2 2B.2 Desert dunes, Great Basin scrub, Mojavean desert scrub Sandy 1500 1980 4920 6495 1988-01-01 Photo of Grusonia pulchella
© 2010 Neal Kramer
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
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
Oxytropis deflexa var. sericea blue pendent-pod oxytrope Fabaceae perennial herb Jun-Aug None None G5T5 S1 2B.1 SB_CalBG/RSABG Grazing, Other Meadows and seeps, Upper montane coniferous forest 2800 3355 9185 11010 1988-01-01
No Photo Available
Penstemon barnebyi Barneby's beardtongue Plantaginaceae perennial herb May None None G3G4 S1 2B.1 Great Basin scrub, Pinyon and juniper woodland Carbonate, Gravelly 1500 2500 4920 8205 1988-01-01 Photo of Penstemon barnebyi
Christopher L. Christie 2019
Potentilla multijuga Ballona cinquefoil Rosaceae perennial herb Jun-Aug None None GX SX 1A Development Meadows and seeps (brackish) 0 2 0 5 Yes 1974-01-01
No Photo Available
Lasthenia californica ssp. bakeri Baker's goldfields Asteraceae perennial herb Apr-Oct None None G3T1 S1 1B.2 Foot traffic/trampling, Non-native plant impacts Closed-cone coniferous forest (openings), Coastal scrub, Marshes and swamps, Meadows and seeps 60 520 195 1705 Yes 2001-01-01 Photo of Lasthenia californica ssp. bakeri
©2015 Asa Spade
Leptosiphon latisectus broad-lobed leptosiphon Polemoniaceae annual herb Apr-Jun None None G4 S4 4.3 Broadleafed upland forest, Cismontane woodland 170 1500 560 4920 Yes 2001-01-01 Photo of Leptosiphon latisectus
© 2015 Steve Matson
Perideridia bacigalupii Bacigalupi's yampah Apiaceae perennial herb Jun-Aug None None G3 S3 4.2 Chaparral, Lower montane coniferous forest Serpentine 450 1255 1475 4120 Yes 1974-01-01
No Photo Available
Eriogonum umbellatum var. bahiiforme bay buckwheat Polygonaceae perennial herb Jul-Sep None None G5T3 S3 4.2 Cismontane woodland, Lower montane coniferous forest Rocky, Serpentine (often) 700 2200 2295 7220 Yes 2001-01-01
No Photo Available
Rhynchospora capitellata brownish beaked-rush Cyperaceae perennial herb Jul-Aug None None G5 S1 2B.2 IUCN_LC Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, Other, Surface water diversion Lower montane coniferous forest, Marshes and swamps, Meadows and seeps, Upper montane coniferous forest Mesic 45 2000 150 6560 1974-01-01 Photo of Rhynchospora capitellata
©2004 Dean Wm. Taylor
Phlox dolichantha Big Bear Valley phlox Polemoniaceae perennial herb May-Jul None None G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Pebble (Pavement) plain, Upper montane coniferous forest (openings) 1830 2970 6005 9745 Yes 1974-01-01
No Photo Available
Pinus contorta ssp. bolanderi Bolander's beach pine Pinaceae perennial evergreen tree None None G5T2 S2 1B.2 SB_UCSC Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Grazing, Landfill, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Closed-cone coniferous forest (podzol-like soil) 75 250 245 820 Yes 1984-01-01
No Photo Available
Pinus longaeva bristlecone pine Pinaceae perennial evergreen tree None None G4 S3S4 4.3 IUCN_LC; SB_CalBG/RSABG; SB_KewBG; SB_USDA Subalpine coniferous forest (carbonate) 2200 3700 7220 12140 1984-01-01
No Photo Available
Plagiobothrys hystriculus bearded popcornflower Boraginaceae annual herb Apr-May None None G2 S2 1B.1 Development, Disking, Non-native plant impacts, Other, Road/trail construction/maint. Valley and foothill grassland (mesic), Vernal pools (margins) 0 274 0 900 Yes 1974-01-01
No Photo Available
Polygonum bidwelliae Bidwell's knotweed Polygonaceae annual herb Apr-Jul None None G4 S4 4.3 Chaparral, Cismontane woodland, Valley and foothill grassland Volcanic 60 1200 195 3935 Yes 1974-01-01 Photo of Polygonum bidwelliae
©2020 Neal Kramer
Scleropogon brevifolius burro grass Poaceae perennial stoloniferous herb Oct None None G5 S1S2 2B.3 Development, Grazing, Mining, ORV activity, Road/trail construction/maint. Joshua tree "woodland", Mojavean desert scrub (decomposed granitic) 1360 1600 4460 5250 1984-01-01
No Photo Available
Scrophularia atrata black-flowered figwort Scrophulariaceae perennial herb Mar-Jul None None G2? S2? 1B.2 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Mining, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Closed-cone coniferous forest, Coastal dunes, Coastal scrub, Riparian scrub 10 500 35 1640 Yes 1974-01-01
No Photo Available
Tracyina rostrata beaked tracyina Asteraceae annual herb May-Jun None None G2 S2 1B.2 USFS_S Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Road/trail construction/maint. Chaparral, Cismontane woodland, Valley and foothill grassland 90 1270 295 4165 Yes 1974-01-01 Photo of Tracyina rostrata
©2018 John Game
Trifolium bolanderi Bolander's clover Fabaceae perennial herb Jun-Aug None None G3 S3 1B.2 SB_SBBG; SB_USDA; USFS_S Biocides, Development, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic 2039 2600 6690 8530 Yes 1974-01-01
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
Antennaria pulchella beautiful pussy-toes Asteraceae perennial stoloniferous herb Jun-Sep None None G4 S4 4.3 Alpine boulder and rock field (stream margins), Meadows and seeps 2800 3700 9185 12140 1994-01-01 Photo of Antennaria pulchella
© 2014 Steve Matson
Astragalus lentiginosus var. sierrae Big Bear Valley milk-vetch Fabaceae perennial herb Apr-Aug None None G5T2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Meadows and seeps, Mojavean desert scrub, Pinyon and juniper woodland, Upper montane coniferous forest Gravelly (sometimes), Rocky (sometimes) 1800 2600 5905 8530 Yes 1994-01-01
No Photo Available
Astragalus platytropis broad-keeled milk-vetch Fabaceae perennial herb Jun-Sep None None G5 S3 2B.2 Foot traffic/trampling, Grazing, Mining, ORV activity, Recreational use (non-ORV) Alpine boulder and rock field, Pinyon and juniper woodland, Subalpine coniferous forest Rocky 2345 3550 7695 11650 1994-01-01
No Photo Available
Blepharizonia plumosa big tarplant Asteraceae annual herb Jul-Oct None None G1G2 S1S2 1B.1 SB_CalBG/RSABG Development, Disking, Erosion/runoff, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Valley and foothill grassland Clay (usually) 30 505 100 1655 Yes 1994-01-01
No Photo Available
Carex comosa bristly sedge Cyperaceae perennial rhizomatous herb May-Sep None None G5 S2 2B.1 IUCN_LC Agriculture, Biocides, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Coastal prairie, Marshes and swamps (lake margins), Valley and foothill grassland 0 625 0 2050 1994-01-01 Photo of Carex comosa
Dean Wm. Taylor 1997
Carex leptalea bristle-stalked sedge Cyperaceae perennial rhizomatous herb Mar-Jul None None G5 S1 2B.2 IUCN_LC Altered flood/tidal/hydrologic regime, Dam/Inundation, Foot traffic/trampling, Logging, Non-native plant impacts, Other, Road/trail construction/maint. Bogs and fens, Marshes and swamps, Meadows and seeps (mesic) 0 700 0 2295 1994-01-01 Photo of Carex leptalea
© 2003 Steve Matson
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
Erigeron calvus bald daisy Asteraceae perennial herb May None None G1Q S1 1B.1 Foot traffic/trampling, Mining, Other Great Basin scrub 1200 1200 3935 3935 Yes 1994-01-01
No Photo Available
Eriogonum nudum var. decurrens Ben Lomond buckwheat Polygonaceae perennial herb Jun-Oct None None G5T1 S1 1B.1 SB_CalBG/RSABG Development, Foot traffic/trampling, Logging, Mining, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Cismontane woodland, Lower montane coniferous forest (maritime ponderosa pine sandhills) Sandy 50 800 165 2625 Yes 1994-01-01
No Photo Available
Eriogonum ovalifolium var. eximium brown-margined buckwheat Polygonaceae perennial herb Jun-Aug None None G5T2 S2 4.3 Alpine boulder and rock field, Subalpine coniferous forest Granitic, Sandy 1800 3400 5905 11155 1994-01-01
No Photo Available
Hulsea vestita ssp. callicarpha beautiful hulsea Asteraceae perennial herb May-Oct None None G5T4 S4 4.2 SB_CalBG/RSABG Chaparral, Lower montane coniferous forest Granitic, Gravelly (sometimes), Rocky (sometimes) 915 3050 3000 10005 Yes 1994-01-01 Photo of Hulsea vestita ssp. callicarpha
© 2015 Keir Morse
Leptosiphon aureus bristly leptosiphon Polemoniaceae annual herb Apr-Jul None None G4? S4? 4.2 Chaparral, Cismontane woodland, Coastal prairie, Valley and foothill grassland 55 1500 180 4920 Yes 1994-01-01 Photo of Leptosiphon aureus
© 2007 Len Blumin
Navarretia leucocephala ssp. bakeri Baker's navarretia Polemoniaceae annual herb Apr-Jul None None G4T2 S2 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 Cismontane woodland, Lower montane coniferous forest, Meadows and seeps, Valley and foothill grassland, Vernal pools Mesic 5 1740 15 5710 Yes 1994-01-01 Photo of Navarretia leucocephala ssp. bakeri
© 2018 Barry Rice
Navarretia peninsularis Baja navarretia Polemoniaceae annual herb (May)Jun-Aug None None G3 S2 1B.2 SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Development, Feral pigs, Foot traffic/trampling, Grazing, Mining, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral (openings), Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland Mesic 1500 2300 4920 7545 1994-01-01
No Photo Available
Opuntia fragilis brittle prickly-pear Cactaceae perennial stem Apr-Jul None None G5 S1 2B.1 IUCN_LC Grazing, Recreational use (non-ORV) Pinyon and juniper woodland (volcanic) 820 880 2690 2885 1994-01-01 Photo of Opuntia fragilis
©2008 John Dittes
Salix bebbiana Bebb's willow Salicaceae perennial deciduous tree May None None G5 S2S3 2B.3 IUCN_LC Recreational use (non-ORV) Marshes and swamps (lake margins, streambanks), Riparian scrub 1200 2230 3935 7315 1994-01-01 Photo of Salix bebbiana
© 2021 Jennifer J. Whipple
Selaginella asprella bluish spike-moss Selaginellaceae perennial rhizomatous herb Jul None None G4 S4 4.3 Cismontane woodland, Lower montane coniferous forest, Pinyon and juniper woodland, Subalpine coniferous forest, Upper montane coniferous forest Granitic, Rocky 1600 2700 5250 8860 1974-01-01
No Photo Available
Potentilla basaltica Black Rock potentilla Rosaceae perennial herb May-Jun(Jul) None None G1 S1 1B.3 BLM_S; SB_UCSC; USFS_S Foot traffic/trampling, Grazing, Other, Road/trail construction/maint. Meadows and seeps (alkaline, sandy, volcanic) 1360 1555 4460 5100 1994-01-01
No Photo Available
Calandrinia breweri Brewer's calandrinia Montiaceae annual herb (Jan)Mar-Jun None None G4 S4 4.2 SB_SBBG; SB_UCSC Chaparral, Coastal scrub Burned areas, Disturbed areas, Loam (sometimes), Sandy (sometimes) 10 1220 35 4005 1994-01-01
No Photo Available
Bouteloua eriopoda black grama Poaceae perennial stoloniferous herb May-Aug None None G5 S4 4.2 SB_CalBG/RSABG Joshua tree "woodland", Pinyon and juniper woodland 900 1900 2955 6235 2001-01-01
No Photo Available
Eremothera boothii ssp. intermedia Booth's hairy evening-primrose Onagraceae annual herb (May)Jun None None G5T3T4 S3 2B.3 Great Basin scrub (sandy), Pinyon and juniper woodland 1500 2150 4920 7055 2001-01-01
No Photo Available
Carex buxbaumii Buxbaum's sedge Cyperaceae perennial rhizomatous herb Mar-Aug None None G5 S3 4.2 Bogs and fens, Marshes and swamps, Meadows and seeps (mesic) 3 3300 10 10825 2001-01-01 Photo of Carex buxbaumii
© 2008 Dean Wm. Taylor, Ph.D.
Cinna bolanderi Bolander's woodreed Poaceae perennial herb Jul-Sep None None G2G3 S2S3 1B.2 USFS_S Foot traffic/trampling, Grazing, Logging, Surface water diversion, Vandalism/dumping/litter Meadows and seeps, Upper montane coniferous forest Mesic, Streambanks 1670 2440 5480 8005 Yes 2001-01-01
No Photo Available
Clarkia biloba ssp. brandegeeae Brandegee's clarkia Onagraceae annual herb (Mar)May-Jul None None G4G5T4 S4 4.2 SB_UCSC Biocides, Dam/Inundation, Development, Erosion/runoff, Feral pigs, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland, Lower montane coniferous forest Roadsides (often) 75 915 245 3000 Yes 2001-01-01
No Photo Available
Primula pauciflora beautiful shootingstar Primulaceae perennial herb Apr-Jun None None G5 S3 4.2 Great Basin scrub, Meadows and seeps, Pinyon and juniper woodland Mesic 1000 2380 3280 7810 2001-01-01 Photo of Primula pauciflora
© 2008 Steve Matson
Eriogonum baileyi var. praebens Bailey's woolly buckwheat Polygonaceae annual herb May-Sep None None G5T4 S4 4.3 Great Basin scrub, Meadows and seeps, Pinyon and juniper woodland Sandy 1300 2900 4265 9515 2001-01-01
No Photo Available
Gilia capitata ssp. chamissonis blue coast gilia Polemoniaceae annual herb Apr-Jul None None G5T2 S2 1B.1 SB_UCBG Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Road/trail construction/maint. Coastal dunes, Coastal scrub 2 200 5 655 Yes 2001-01-01 Photo of Gilia capitata ssp. chamissonis
© 2017 John Doyen
Lupinus latifolius var. barbatus bearded lupine Fabaceae perennial herb Jun-Jul None None G5T2Q S2 3.2 USFS_S Upper montane coniferous forest (mesic) 1500 2500 4920 8205 2001-01-01
No Photo Available
Mertensia oblongifolia var. amoena beautiful sagebrush bluebells Boraginaceae perennial herb Apr-Jul None None G5T5 S2 2B.2 Foot traffic/trampling, Recreational use (non-ORV) Great Basin scrub, Meadows and seeps 1630 2315 5350 7595 2001-01-01
No Photo Available
Osmorhiza depauperata blunt-fruited sweet-cicely Apiaceae perennial herb May-Jul None None G5 S1 2B.3 Lower montane coniferous forest 1830 1850 6005 6070 2001-01-01 Photo of Osmorhiza depauperata
©2019 John Doyen
Pediomelum castoreum Beaver Dam breadroot Fabaceae perennial herb Apr-May None None G3 S2 1B.2 BLM_S; SB_CalBG/RSABG Joshua tree "woodland", Mojavean desert scrub Roadsides, Sandy, Washes 610 1525 2000 5005 2001-01-01
No Photo Available
Potentilla pulcherrima beautiful cinquefoil Rosaceae perennial herb Jul None None G5 S1 2B.2 Grazing Great Basin scrub 3010 3010 9875 9875 2001-01-01
No Photo Available
Schoenus nigricans black bog-rush Cyperaceae perennial herb Aug-Sep None None G4 S2 2B.2 IUCN_LC; USFS_S Groundwater pumping, Non-native plant impacts, ORV activity, Road/trail construction/maint., Surface water diversion Marshes and swamps (often alkaline) 150 2000 490 6560 2001-01-01
No Photo Available
Senecio blochmaniae Blochman's ragwort Asteraceae perennial herb May-Oct None None G3 S3 4.2 SB_CalBG/RSABG Coastal dunes 0 100 0 330 Yes 1974-01-01
No Photo Available
Stellaria littoralis beach starwort Caryophyllaceae perennial rhizomatous herb Mar-Jul None None G3 S3 4.2 Bogs and fens, Coastal bluff scrub, Coastal dunes, Coastal scrub, Marshes and swamps 5 40 15 130 Yes 2001-01-01
No Photo Available
Streptanthus barbiger bearded jewelflower Brassicaceae annual herb May-Jul None None G3 S3 4.2 SB_UCBG Chaparral (serpentinite) 150 1070 490 3510 Yes 2001-01-01 Photo of Streptanthus barbiger
© 2017 John Doyen
Wolffia brasiliensis Brazilian watermeal Araceae perennial herb (aquatic) Apr-Dec None None G5 S2 2B.3 Altered flood/tidal/hydrologic regime, Waterway bank protection/maintenance Marshes and swamps (shallow freshwater) 20 100 65 330 2001-01-01 Photo of Wolffia brasiliensis
© 2021 Scot Loring
Sphaerocarpos drewiae bottle liverwort Sphaerocarpaceae ephemeral liverwort None None G1 S1 1B.1 IUCN_EN Development, Road/trail construction/maint. Chaparral, Coastal scrub Openings 90 600 295 1970 Yes 2001-01-01
No Photo Available
Bruchia bolanderi Bolander's bruchia Bruchianceae moss None None G3 S3 4.2 USFS_S Foot traffic/trampling, Improper burning regime, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest 1700 2800 5580 9185 2001-01-01 Photo of Bruchia bolanderi
©2021 Scot Loring
Fissidens aphelotaxifolius brook pocket moss Fissidentaceae moss None None G3G4 S1 2B.2 USFS_S Lower montane coniferous forest, Upper montane coniferous forest Rocky, Streambanks 2000 2200 6560 7220 2001-01-01
No Photo Available
Elodium blandowii Blandow's bog moss Helodiaceae moss None None G4 S2 2B.2 USFS_S Altered flood/tidal/hydrologic regime, Grazing Meadows and seeps, Subalpine coniferous forest 1862 2700 6110 8860 2001-01-01 Photo of Elodium blandowii
© 2013 Scot Loring
Meesia uliginosa broad-nerved hump moss Meesiaceae moss Jul-Oct None None G5 S3 2B.2 USFS_S Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing Bogs and fens, Meadows and seeps, Subalpine coniferous forest, Upper montane coniferous forest 1210 2804 3970 9200 2001-01-01 Photo of Meesia uliginosa
©2013 Scot Loring
Eriogonum microthecum var. lacus-ursi Bear Lake buckwheat Polygonaceae perennial shrub Jul-Aug None None G5T1 S1 1B.1 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Recreational use (non-ORV) Great Basin scrub, Lower montane coniferous forest Clay 2000 2100 6560 6890 Yes 2005-01-01
No Photo Available
Cicuta maculata var. bolanderi Bolander's water-hemlock Apiaceae perennial herb Jul-Sep None None G5T4T5 S2? 2B.1 SB_CalBG/RSABG Erosion/runoff, Recreational use (non-ORV) Marshes and swamps (brackish, coastal, freshwater) 0 200 0 655 1974-01-01 Photo of Cicuta maculata var. bolanderi
© 2007 Doreen L Smith
Lathyrus hitchcockianus Bullfrog Mountain pea Fabaceae perennial herb Apr-May None None G2 S1 1B.3 Mojavean desert scrub 1370 1980 4495 6495 1980-01-01 Photo of Lathyrus hitchcockianus
© 2011 Teague Embrey
Delphinium scaposum bare-stem larkspur Ranunculaceae perennial herb Mar-Apr None None G5 S1 2B.3 Sonoran desert scrub Rocky, Washes (sometimes) 270 1055 885 3460 2006-03-03
No Photo Available
Eriogonum ursinum var. erubescens blushing wild buckwheat Polygonaceae perennial herb Jun-Sep None None G3G4T3 S3 1B.3 SB_UCSC; USFS_S Logging, ORV activity, Road/trail construction/maint., Vandalism/dumping/litter Chaparral (montane), Lower montane coniferous forest Rocky, Scree, Talus 750 1900 2460 6235 Yes 2006-10-24 Photo of Eriogonum ursinum var. erubescens
©2008 Sierra Pacific Industries
Phacelia barnebyana Barneby's phacelia Hydrophyllaceae annual herb (Apr)May-Jul None None G3? S2 2B.3 Non-native plant impacts Great Basin scrub, Pinyon and juniper woodland Carbonate (usually), Gravelly, Rocky 1600 2700 5250 8860 2007-01-03
No Photo Available
Hemieva ranunculifolia buttercup-leaf hemieva Saxifragaceae perennial herb Jun-Aug None None G5 S2 2B.2 Meadows and seeps, Upper montane coniferous forest Granitic, Mesic, Rock crevices (often), Rocky 1500 2500 4920 8205 2007-06-29 Photo of Hemieva ranunculifolia
Dana York (2017)
Heterotheca sessiliflora ssp. sessiliflora beach goldenaster Asteraceae perennial herb Mar-Dec None None G4T2T3 S1 1B.1 SB_CalBG/RSABG; SB_CRES Development, Non-native plant impacts, ORV activity, Other Chaparral (coastal), Coastal dunes, Coastal scrub 0 1225 0 4020 2007-06-14
No Photo Available
Hymenoxys odorata bitter hymenoxys Asteraceae annual herb Feb-Nov None None G5 S2 2B.1 Development Riparian scrub, Sonoran desert scrub Sandy 45 150 150 490 2008-11-20 Photo of Hymenoxys odorata
© 2015 Richard Spellenberg
Sabulina stricta bog sandwort Caryophyllaceae perennial herb Jul-Sep None None G5 S3 2B.3 Alpine boulder and rock field, Alpine dwarf scrub, Meadows and seeps 2440 3960 8005 12995 2010-04-06
No Photo Available
Sarcobatus baileyi Bailey's greasewood Sarcobataceae perennial deciduous shrub Apr-Jul None None G4 S1 2B.3 Grazing, Improper burning regime, ORV activity, Road/trail construction/maint. Chenopod scrub Alkaline, Roadsides, Washes 1500 1600 4920 5250 2011-08-09
No Photo Available
Monardella boydii Boyd's monardella Lamiaceae perennial shrub Aug-Oct None None G1?Q S1? 1B.2 BLM_S; SB_CalBG/RSABG; SB_USDA Mojavean desert scrub, Pinyon and juniper woodland, Riparian scrub (desert) Alluvial Terraces (usually), Rock crevices, Slopes, Washes 1400 1650 4595 5415 Yes 2011-12-06
No Photo Available
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
Sidalcea malviflora ssp. dolosa Bear Valley checkerbloom Malvaceae perennial herb May-Aug None None G5T2 S2 1B.2 SB_CalBG/RSABG; USFS_S Lower montane coniferous forest (meadows, seeps), Meadows and seeps, Riparian woodland, Upper montane coniferous forest (meadows, seeps) 1495 2685 4905 8810 Yes 2012-06-13
No Photo Available
Cornus unalaschkensis bunchberry Cornaceae perennial rhizomatous herb May-Jul None None G5 S2 2B.2 Foot traffic/trampling, Logging, Non-native plant impacts, ORV activity, Other, Vandalism/dumping/litter Bogs and fens, Meadows and seeps, North Coast coniferous forest 60 1920 195 6300 2012-12-11 Photo of Cornus unalaschkensis
© 2021 Scot Loring
Erysimum concinnum bluff wallflower Brassicaceae annual/perennial herb Feb-Jul None None G3 S2 1B.2 BLM_S Development, Non-native plant impacts Coastal bluff scrub, Coastal dunes, Coastal prairie 0 185 0 605 2012-12-03 Photo of Erysimum concinnum
©2020 John Doyen
Graphis saxorum Baja rock lichen Graphidaceae crustose lichen (saxicolous) None None G1G2 S1 3 Coastal scrub (?) 30 80 100 260 2014-03-01
No Photo Available
Bryum chryseum brassy bryum Bryaceae moss None None G5 S3 4.3 Chaparral (openings), Cismontane woodland, Valley and foothill grassland 50 600 165 1970 2014-05-05
No Photo Available
Sedum citrinum Blue Creek stonecrop Crassulaceae perennial herb Jun None None G2 S2 1B.2 SB_UCSC Mining, Road/trail construction/maint. North Coast coniferous forest Roadsides (sometimes), Rock crevices, Rocky, Scree, Serpentine, Talus 1050 1280 3445 4200 Yes 2015-04-20 Photo of Sedum citrinum
©2014 Peter Zika
Muhlenbergia emersleyi bullgrass Poaceae perennial herb Sep-Nov None None G5 S1 2B.2 Chaparral (montane) Gabbroic (often), Gravelly, Rocky 1280 1570 4200 5150 2019-07-26
No Photo Available
Nemacladus inyoensis Badger Flat threadplant Campanulaceae annual herb May-Jun None None G3 S3 1B.2 Mining Mojavean desert scrub, Pinyon and juniper woodland Carbonate, Flats, Granitic, Gravelly, Rocky, Sandstone, Scree, Washes 1735 2635 5695 8645 Yes 2020-07-21 Photo of Nemacladus inyoensis
© 2019 Steve Matson
Allium geyeri var. tenerum bulbil onion Alliaceae perennial bulbiferous herb May None None G4G5T4T5 S1 2B.1 Meadows and seeps Rocky, Streambanks 1495 1495 4905 4905 2021-02-03 Photo of Allium geyeri var. tenerum
© 2011 Ryan Batten
Silene bolanderi Bolander's catchfly Caryophyllaceae perennial herb May-Jun None None G2 S2 1B.2 Chaparral (edges), Cismontane woodland, Lower montane coniferous forest, Meadows and seeps, North Coast coniferous forest Openings (usually), Roadsides (sometimes), Rocky (sometimes), Serpentine (sometimes) 420 1150 1380 3775 2021-07-30
No Photo Available
Monardella breweri ssp. glandulifera Brown's Flat monardella Lamiaceae annual herb May-Aug None None G5T1 S1 1B.2 Chaparral, Lower montane coniferous forest Dry, Openings 1300 1500 4265 4920 2022-05-20
No Photo Available
Erythranthe bergeri Berger's monkeyflower Phrymaceae annual herb Apr-May None None G1Q S1 3 Great Basin scrub Granitic, Rocky, Vernally Mesic 1235 1235 4050 4050 2022-06-21
No Photo Available
Collema nigrescens blistered jelly lichen CBR 2022-08-31
No Photo Available
Bryum calobryoides beautiful bryum moss CBR 2022-09-28
No Photo Available
Hoffmannseggia peninsularis Baja peninsula rushpea Fabaceae perennial shrub Jan-Mar None None G2 S1 1B.1 Sonoran desert scrub Gravelly, Metamorphic (sometimes), Rocky, Volcanic (sometimes) 255 275 835 900 2023-01-20 Photo of Hoffmannseggia peninsularis
© 2019 Joey Malone
Layia erubescens blushing layia Asteraceae annual herb (Feb)Mar-May(Jun) None None G2 S2 1B.2 Non-native plant impacts Coastal dunes, Coastal scrub Openings, Sandy 10 245 35 805 2022-12-22
No Photo Available
Nemacladus twisselmannii var. botanywomaniae Botany Woman's threadplant Campanulaceae annual herb Apr(May) None None G1T1 S1 1B.1 Erosion/runoff, Non-native plant impacts Chaparral Sandy 1170 1215 3840 3985 2023-03-22 Photo of Nemacladus twisselmannii var. botanywomaniae
© 2012 Keir Morse
Nemacladus bellus beautiful threadplant Campanulaceae annual herb (Apr)May-Jul None None G2 S2 1B.3 Cismontane woodland, Joshua tree "woodland" Granitic, Gravelly, Sandy 800 1800 2625 5905 2023-08-02 Photo of Nemacladus bellus
© 2018 Keir Morse
Stuckenia striata broadleaf pondweed Potamogetonaceae perennial rhizomatous (aquatic) (Jun)Jul-Aug None None G3G4Q S2S3 2B.3 Marshes and swamps -70 2135 -230 7005 2024-01-30
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 25 April 2024].