CNPS

CNPS Rare Plant Inventory


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208 matches found. Click on scientific name for details

Search Criteria: Common Name starts with C

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
Eleocharis torticulmis California twisted spikerush Cyperaceae perennial rhizomatous herb Jun-Jul None None G1 S1 1B.3 USFS_S Foot traffic/trampling Bogs and fens, Lower montane coniferous forest, Meadows and seeps 1005 1175 3295 3855 Yes 2004-01-01
No Photo Available
Arctostaphylos manzanita ssp. laevigata Contra Costa manzanita Ericaceae perennial evergreen shrub Jan-Mar(Apr) None None G5T2 S2 1B.2 SB_UCSC Biocides, Improper burning regime, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral (rocky) 430 1100 1410 3610 Yes 1984-01-01 Photo of Arctostaphylos manzanita ssp. laevigata
© 2019 Susan McDougall
Calochortus raichei Cedars fairy-lantern Liliaceae perennial bulbiferous herb May-Aug None None G2 S2 1B.2 BLM_S; SB_UCSC Road/trail construction/maint. Chaparral, Closed-cone coniferous forest Serpentine 200 490 655 1610 Yes 1988-01-01
No Photo Available
Adolphia californica California adolphia Rhamnaceae perennial deciduous shrub Dec-May None None G3 S2 2B.1 SB_CalBG/RSABG; SB_CRES Agriculture, Development, 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, Coastal scrub, Valley and foothill grassland Clay 10 740 35 2430 1974-01-01 Photo of Adolphia californica
© 2007 Andrew Borcher
Agave utahensis var. nevadensis Clark Mountain agave Agavaceae perennial leaf May-Jul None None G4T3 S3 4.2 SB_CalBG/RSABG Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland Carbonate (sometimes), Volcanic (sometimes) 900 1585 2955 5200 1980-01-01 Photo of Agave utahensis var. nevadensis
© 2009 Zoya Akulova
Calochortus clavatus var. clavatus club-haired mariposa lily Liliaceae perennial bulbiferous herb (Mar)May-Jun None None G4T3 S3 4.3 SB_CalBG/RSABG; USFS_S Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland Clay, Rocky, Serpentine (usually) 30 1300 100 4265 Yes 1974-01-01
No Photo Available
Calystegia subacaulis ssp. episcopalis Cambria morning-glory Convolvulaceae perennial rhizomatous herb (Mar)Apr-Jun(Jul) None None G3T2? S2? 4.2 Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Cismontane woodland, Coastal prairie, Valley and foothill grassland Clay (usually) 30 500 100 1640 Yes 1988-01-01
No Photo Available
Angelica callii Call's angelica Apiaceae perennial herb Jun-Jul None None G3 S3 4.3 Cismontane woodland, Lower montane coniferous forest Mesic 1100 2000 3610 6560 Yes 1974-01-01
No Photo Available
Hemizonia congesta ssp. congesta congested-headed hayfield tarplant Asteraceae annual herb Apr-Nov None None G5T2 S2 1B.2 SB_UCBG Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Valley and foothill grassland Roadsides (sometimes) 20 560 65 1835 Yes 1988-01-01 Photo of Hemizonia congesta ssp. congesta
© 2015 Vernon Smith
Arabis blepharophylla coast rockcress Brassicaceae perennial herb Feb-May None None G4 S4 4.3 SB_CalBG/RSABG Broadleafed upland forest, Coastal bluff scrub, Coastal prairie, Coastal scrub Rocky 3 1100 10 3610 Yes 1974-01-01 Photo of Arabis blepharophylla
© 2011 Neal Kramer
Boechera constancei Constance's rockcress Brassicaceae perennial herb May-Jul None None G2 S2 1B.1 USFS_S Biocides, Disease, Erosion/runoff, Improper burning regime, Logging, Mining, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Upper montane coniferous forest Rocky, Serpentine 975 2025 3200 6645 Yes 1974-01-01
No Photo Available
Ayenia compacta California ayenia Malvaceae perennial herb Mar-Apr None None G4 S3 2B.3 SB_CalBG/RSABG Foot traffic/trampling, Mining, ORV activity, Recreational use (non-ORV) Mojavean desert scrub, Sonoran desert scrub Rocky 150 1095 490 3595 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
Diplacus pictus calico monkeyflower Phrymaceae annual herb Mar-May None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Road/trail construction/maint. Broadleafed upland forest, Cismontane woodland Disturbed areas, Granitic 100 1430 330 4690 Yes 1974-01-01 Photo of Diplacus pictus
© 2020 Matt C. Berger
Ravenella exigua chaparral harebell Campanulaceae annual herb May-Jun None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG Development, Erosion/runoff, Grazing, Mining, Non-native plant impacts, Road/trail construction/maint. Chaparral (rocky, usually serpentinite) 275 1250 900 4100 Yes 1974-01-01
No Photo Available
Campanula shetleri Castle Crags harebell Campanulaceae perennial rhizomatous herb Jun-Sep None None G2 S2 1B.3 SB_BerrySB; USFS_S Foot traffic/trampling, Recreational use (non-ORV) Lower montane coniferous forest (rocky) 1220 1830 4005 6005 Yes 1974-01-01 Photo of Campanula shetleri
©2020 Neal Kramer
Carex californica California sedge Cyperaceae perennial rhizomatous herb May-Aug None None G5 S2 2B.2 Development, Erosion/runoff, Grazing, Logging, ORV activity, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Bogs and fens, Closed-cone coniferous forest, Coastal prairie, Marshes and swamps (margins), Meadows and seeps 90 335 295 1100 1974-01-01
No Photo Available
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 bicristatus crested milk-vetch Fabaceae perennial herb May-Aug None None G3 S3 4.3 SB_CalBG/RSABG; USFS_S Lower montane coniferous forest, Upper montane coniferous forest Carbonate (usually), Rocky (sometimes), Sandy (sometimes) 1700 2745 5580 9005 Yes 1974-01-01
No Photo Available
Astragalus cimae var. cimae Cima milk-vetch Fabaceae perennial herb Apr-May None None G3T2T3 S2? 1B.2 SB_CalBG/RSABG Foot traffic/trampling, Grazing, Mining, Other, Recreational use (non-ORV) Great Basin scrub, Joshua tree "woodland", Pinyon and juniper woodland Clay 890 1850 2920 6070 1974-01-01
No Photo Available
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 clevelandii Cleveland's milk-vetch Fabaceae perennial herb Jun-Sep None None G4 S4 4.3 Chaparral, Cismontane woodland, Riparian forest Seeps, Serpentine 200 1500 655 4920 Yes 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 mohavensis var. hemigyrus curved-pod milk-vetch Fabaceae annual herb Apr-Jun None None G3G4T2T3 S1 1B.1 BLM_S; SB_CalBG/RSABG Mining Joshua tree "woodland", Mojavean desert scrub Carbonate 1250 1620 4100 5315 1988-01-01
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
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.
Calochortus catalinae Catalina mariposa lily Liliaceae perennial bulbiferous herb (Feb)Mar-Jun None None G3G4 S3S4 4.2 SB_CalBG/RSABG; SB_SBBG Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland 15 700 50 2295 Yes 1974-01-01
No Photo Available
Carex congdonii Congdon's sedge Cyperaceae perennial rhizomatous herb Jul-Aug None None G4 S4 4.3 SB_CalBG/RSABG Alpine boulder and rock field, Subalpine coniferous forest (rocky) 2600 3900 8530 12795 Yes 1974-01-01
No Photo Available
Dudleya candelabrum candleholder dudleya Crassulaceae perennial herb Apr-Jul None None G3 S3 1B.2 Erosion/runoff Chaparral, Closed-cone coniferous forest, Coastal scrub Rocky 5 610 15 2000 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
Lomatium congdonii Congdon's lomatium Apiaceae perennial herb Mar-Jun None None G2 S2 1B.2 BLM_S; SB_SBBG Biocides, Erosion/runoff, Grazing, Mining, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland Serpentine 300 2100 985 6890 Yes 1974-01-01
No Photo Available
Lomatium martindalei Coast Range lomatium Apiaceae perennial herb May-Jun(Aug) None None G5 S2 2B.3 Logging Coastal bluff scrub, Lower montane coniferous forest, Meadows and seeps 240 3000 785 9845 1980-01-01 Photo of Lomatium martindalei
©2014 Barry Rice
Senna covesii Cove's cassia Fabaceae perennial herb Mar-Jun(Aug) None None G5 S3 2B.2 SB_CalBG/RSABG Erosion/runoff, Mining, ORV activity, Other, Road/trail construction/maint. Sonoran desert scrub Dry, Sandy, Slopes, Washes 225 1295 740 4250 1980-01-01
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 divergens Calistoga ceanothus Rhamnaceae perennial evergreen shrub Feb-Apr None None G2 S2 1B.2 SB_UCSC Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (rocky, serpentinite, volcanic) 170 950 560 3115 Yes 1974-01-01
No Photo Available
Ceanothus ferrisiae Coyote ceanothus Rhamnaceae perennial evergreen shrub Jan-May FE None G1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Development, Grazing, Improper burning regime Chaparral, Coastal scrub, Valley and foothill grassland Serpentine 120 460 395 1510 Yes 1974-01-01
No Photo Available
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
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
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 occidentale var. compactum compact cobwebby thistle Asteraceae perennial herb Apr-Jun None None G3G4T2 S2 1B.2 BLM_S Development, Erosion/runoff, Grazing, Non-native plant impacts, Road/trail construction/maint. Chaparral, Coastal dunes, Coastal prairie, Coastal scrub 5 150 15 490 Yes 1974-01-01
No Photo Available
Crossosoma californicum Catalina crossosoma Crossosomataceae perennial deciduous shrub Feb-May None None G3 S3 1B.2 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Non-native animal impacts, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Coastal scrub Rocky 0 500 0 1640 1980-01-01
No Photo Available
Hesperocyparis stephensonii Cuyamaca cypress Cupressaceae perennial evergreen tree None None G1 S1 1B.1 SB_CalBG/RSABG; USFS_S Improper burning regime Chaparral, Cismontane woodland, Closed-cone coniferous forest, Riparian forest Gabbroic 1035 1705 3395 5595 1980-01-01 Photo of Hesperocyparis stephensonii
© 2011 Joey Malone
Cypripedium californicum California lady's-slipper Orchidaceae perennial rhizomatous herb Apr-Aug(Sep) None None G3 S4 4.2 IUCN_EN; SB_CalBG/RSABG Bogs and fens, Lower montane coniferous forest Seeps, Serpentine (usually), Streambanks 30 2750 100 9025 1980-01-01 Photo of Cypripedium californicum
© 2012 Barry Rice
Cypripedium fasciculatum clustered lady's-slipper Orchidaceae perennial rhizomatous herb Mar-Aug None None G4 S4 4.2 BLM_S; IUCN_VU; USFS_S Lower montane coniferous forest, North Coast coniferous forest Seeps (usually), Serpentine (usually), Streambanks 100 2435 330 7990 1980-01-01 Photo of Cypripedium fasciculatum
© 2013 Scot Loring
Darlingtonia californica California pitcherplant Sarraceniaceae perennial rhizomatous herb (carnivorous) Apr-Aug None None G4 S4 4.2 IUCN_LC; SB_CalBG/RSABG Bogs and fens, Meadows and seeps Mesic, Seeps (usually), Serpentine (usually) 0 2585 0 8480 1980-01-01 Photo of Darlingtonia californica
© 2021 Scot Loring
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 parishii ssp. subglobosum Colorado Desert larkspur Ranunculaceae perennial herb Mar-Jun None None G4T4 S4 4.3 SB_CRES Chaparral, Cismontane woodland, Pinyon and juniper woodland, Sonoran desert scrub 600 1800 1970 5905 1974-01-01
No Photo Available
Dissanthelium californicum California dissanthelium Poaceae annual herb Mar-May None None G2 S1 1B.2 SB_CalBG/RSABG Non-native animal impacts, Non-native plant impacts Coastal scrub 5 500 15 1640 Yes 1974-01-01
No Photo Available
Ditaxis serrata var. californica California ditaxis Euphorbiaceae perennial herb Mar-Dec None None G5T3T4 S2? 3.2 Development, ORV activity, Other, Road/trail construction/maint. Sonoran desert scrub 30 1000 100 3280 Yes 1974-01-01
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
Draba asterophora var. macrocarpa Cup Lake draba Brassicaceae perennial herb Jul-Aug(Sep) None None G2T1 S1 1B.1 USFS_S Erosion/runoff, Foot traffic/trampling, Recreational use (non-ORV), Road/trail construction/maint. Subalpine coniferous forest (rocky) 2500 2815 8205 9235 Yes 1974-01-01
No Photo Available
Draba cana canescent draba Brassicaceae perennial herb Jul None None G5 S2 2B.3 Mining, Road/trail construction/maint. Alpine boulder and rock field, Meadows and seeps, Subalpine coniferous forest Carbonate 3000 3505 9845 11500 1980-01-01
No Photo Available
Elymus californicus California bottle-brush grass Poaceae perennial herb May-Aug(Nov) None None G4 S4 4.3 Broadleafed upland forest, Cismontane woodland, North Coast coniferous forest, Riparian woodland 15 470 50 1540 Yes 1974-01-01
No Photo Available
Eriogonum argillosum clay buckwheat Polygonaceae annual herb Mar-Jun None None G3G4 S3S4 4.3 Cismontane woodland (clay, serpentinite) 150 800 490 2625 Yes 1974-01-01
No Photo Available
Lewisia cantelovii Cantelow's lewisia Montiaceae perennial herb May-Oct None None G3 S3 1B.2 BLM_S; SB_UCSC; USFS_S Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Logging, Mining, Non-native plant impacts, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest Granitic, Mesic, Seeps (sometimes), Serpentine (sometimes) 330 1370 1085 4495 Yes 1974-01-01 Photo of Lewisia cantelovii
©2005 Steve Matson
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
Diplacus clevelandii Cleveland's bush monkeyflower Phrymaceae perennial rhizomatous herb Apr-Jul None None G4 S4 4.2 SB_CalBG/RSABG; SB_CRES Chaparral, Cismontane woodland, Lower montane coniferous forest Disturbed areas (often), Gabbroic, Openings, Rocky 450 2000 1475 6560 1980-01-01 Photo of Diplacus clevelandii
© 2020 W. Juergen Schrenk
Rubus glaucifolius var. ganderi Cuyamaca raspberry Rosaceae perennial evergreen shrub May-Jun None None G5T1Q S1 3.1 Other Lower montane coniferous forest (gabbroic) 1200 1675 3935 5495 Yes 1980-01-01
No Photo Available
Eriogonum congdonii Congdon's buckwheat Polygonaceae perennial deciduous shrub (May)Jun-Aug(Sep) None None G4 S4 4.3 Lower montane coniferous forest (serpentinite) Openings, Rocky, Serpentine 800 2345 2625 7695 Yes 1974-01-01 Photo of Eriogonum congdonii
Steve Matson 2014
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 gossypinum cottony buckwheat Polygonaceae annual herb Mar-Sep None None G3G4 S3S4 4.2 Chenopod scrub, Valley and foothill grassland Clay 100 550 330 1805 Yes 1974-01-01
No Photo Available
Eriogonum heermannii var. floccosum Clark Mountain buckwheat Polygonaceae perennial deciduous shrub Aug-Oct None None G5T4 S4 4.3 SB_CalBG/RSABG Pinyon and juniper woodland (carbonate) 900 2400 2955 7875 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
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
Euphorbia exstipulata var. exstipulata Clark Mountain spurge Euphorbiaceae annual herb Sep None None G5T5? S2 2B.1 SB_CalBG/RSABG Development, Mining, Non-native animal impacts, ORV activity, Vandalism/dumping/litter Mojavean desert scrub (rocky) 1280 2000 4200 6560 1988-01-01
No Photo Available
Euphorbia misera cliff spurge Euphorbiaceae perennial shrub (Oct)Dec-Aug None None G5 S2 2B.2 SB_CalBG/RSABG; SB_CRES 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 bluff scrub, Coastal scrub, Mojavean desert scrub Rocky 10 500 35 1640 1974-01-01
No Photo Available
Galium californicum ssp. luciense Cone Peak bedstraw Rubiaceae perennial herb Mar-Sep None None G5T3 S3 1B.3 USFS_S Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, Other, Road/trail construction/maint. Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest Rocky (often), Serpentine (rarely) 400 1525 1310 5005 Yes 1974-01-01 Photo of Galium californicum ssp. luciense
© 2005 Dean Wm. Taylor
Saltugilia caruifolia caraway-leaved woodland-gilia Polemoniaceae annual herb May-Aug None None G4 S4 4.3 SB_CalBG/RSABG Chaparral, Lower montane coniferous forest Openings, Sandy 840 2300 2755 7545 1974-01-01
No Photo Available
Gilia latiflora ssp. cuyamensis Cuyama gilia Polemoniaceae annual herb Apr-Jun None None G5?T4 S4 4.3 Pinyon and juniper woodland (sandy) 595 2000 1950 6560 Yes 1974-01-01 Photo of Gilia latiflora ssp. cuyamensis
© 2012 Michael Charters
Hackelia cusickii Cusick's stickseed Boraginaceae perennial herb Apr-Jul None None G4 S3S4 4.3 Alpine boulder and rock field, Pinyon and juniper woodland (rocky loam), Subalpine coniferous forest 1200 2000 3935 6560 1974-01-01 Photo of Hackelia cusickii
©1998 Dan Post
Herissantia crispa curly herissantia Malvaceae annual/perennial herb (Apr)Aug-Sep None None G5 S1 2B.3 Sonoran desert scrub 700 725 2295 2380 1988-01-01
No Photo Available
Iliamna latibracteata California globe mallow Malvaceae perennial herb Jun-Aug None None G2G3 S2 1B.2 SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral (montane), Lower montane coniferous forest, North Coast coniferous forest (mesic), Riparian scrub (streambanks) Burned areas (often) 60 2000 195 6560 1974-01-01 Photo of Iliamna latibracteata
©2013 Scot Loring
Juncus hemiendytus var. abjectus Center Basin rush Juncaceae annual herb May-Jun(Jul) None None G5T5 S4 4.3 Meadows and seeps, Subalpine coniferous forest Mesic 1400 3400 4595 11155 1974-01-01 Photo of Juncus hemiendytus var. abjectus
©2008 Steve Matson
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 leucopappa Comanche Point layia Asteraceae annual herb Mar-Apr None None G1 S1 1B.1 SB_SBBG Agriculture, Development, Grazing Chenopod scrub, Valley and foothill grassland 100 350 330 1150 Yes 1974-01-01 Photo of Layia leucopappa
© 2013 Neal Kramer
Lilium maritimum coast lily Liliaceae perennial bulbiferous herb May-Aug None None G2 S2 1B.1 BLM_S; SB_BerrySB; SB_UCBG Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Broadleafed upland forest, Closed-cone coniferous forest, Coastal prairie, Coastal scrub, Marshes and swamps (freshwater), North Coast coniferous forest Roadsides (sometimes) 5 475 15 1560 Yes 1974-01-01 Photo of Lilium maritimum
© 2020 Aaron Schusteff
Hosackia oblongifolia var. cuprea copper-flowered bird's-foot trefoil Fabaceae perennial rhizomatous herb Jun-Aug None None G5T2 S2 1B.3 SB_CalBG/RSABG Meadows and seeps (edges), Upper montane coniferous forest Mesic 2400 2750 7875 9025 Yes 1974-01-01 Photo of Hosackia oblongifolia var. cuprea
© 2018 Mary Merriman
Lupinus magnificus var. glarecola Coso Mountains lupine Fabaceae perennial herb Apr-Jun None None G3T4 S4 4.3 Great Basin scrub, Joshua tree "woodland", Mojavean desert scrub Granitic, Scree (often), Talus (often) 1110 2440 3640 8005 Yes 1980-01-01
No Photo Available
Lupinus sericatus Cobb Mountain lupine Fabaceae perennial herb Mar-Jun None None G2? S2? 1B.2 BLM_S; SB_UCSC Agriculture, Biocides, Development, Logging, Non-native plant impacts, ORV activity, Road/trail construction/maint. Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest 275 1525 900 5005 Yes 1974-01-01
No Photo Available
Malacothamnus involucratus Carmel Valley bush-mallow Malvaceae perennial deciduous shrub Apr-Oct None None G3T2Q S2 1B.2 BLM_S; SB_UCSC; USFS_S Development, Grazing, Military operations, Road/trail construction/maint. Chaparral, Cismontane woodland, Coastal scrub 30 1100 100 3610 Yes 1974-01-01 Photo of Malacothamnus involucratus
© 2017 Keir Morse
Malacothrix saxatilis var. arachnoidea Carmel Valley malacothrix Asteraceae perennial rhizomatous herb (Mar)Jun-Dec None None G5T2 S2 1B.2 USFS_S Dam/Inundation, Feral pigs, Grazing, Improper burning regime, Military operations, Non-native plant impacts Chaparral (rocky), Coastal scrub 25 1036 80 3400 Yes 1974-01-01
No Photo Available
Marina orcuttii var. orcuttii California marina Fabaceae perennial herb May-Oct None None G2G3T1T2 S2? 1B.3 SB_CalBG/RSABG; USFS_S Chaparral, Pinyon and juniper woodland, Sonoran desert scrub Rocky 1050 1160 3445 3805 1984-01-01
No Photo Available
Erythranthe laciniata cut-leaved monkeyflower Phrymaceae annual herb Apr-Jul None None G4 S4 4.3 Chaparral, Lower montane coniferous forest, Upper montane coniferous forest Granitic, Mesic 490 2650 1610 8695 Yes 1974-01-01 Photo of Erythranthe laciniata
© 2017 Steven Perry
Phacelia nashiana Charlotte's phacelia Hydrophyllaceae annual herb Mar-Jun None None G3 S3 1B.2 BLM_S; SB_CalBG/RSABG; SB_USDA Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland Granitic (usually), Sandy 600 2200 1970 7220 Yes 1974-01-01
No Photo Available
Atriplex coronata var. coronata crownscale Chenopodiaceae annual herb Mar-Oct None None G4T3 S3 4.2 SB_CalBG/RSABG Chenopod scrub, Valley and foothill grassland, Vernal pools Alkaline, Clay (often) 1 590 5 1935 Yes 1994-01-01 Photo of Atriplex coronata var. coronata
© 1994 Robert E. Preston, Ph.D.
Atriplex coulteri Coulter's saltbush Chenopodiaceae perennial herb Mar-Oct None None G3 S1S2 1B.2 SB_CalBG/RSABG; SB_CRES Biocides, Development, Erosion/runoff, Foot traffic/trampling, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Coastal bluff scrub, Coastal dunes, Coastal scrub, Valley and foothill grassland Alkaline (sometimes), Clay (sometimes) 3 460 10 1510 1994-01-01
No Photo Available
Monardella undulata ssp. crispa crisp monardella Lamiaceae perennial rhizomatous herb Apr-Aug(Dec) None None G3T2 S2 1B.2 BLM_S Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Coastal dunes, Coastal scrub 10 120 35 395 Yes 1974-01-01
No Photo Available
Muilla coronata crowned muilla Themidaceae perennial bulbiferous herb Mar-Apr(May) None None G3 S3 4.2 Chenopod scrub, Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland 670 1960 2200 6430 1988-01-01
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
Oenothera cespitosa ssp. crinita caespitose evening-primrose Onagraceae perennial rhizomatous herb (Apr)Jun-Sep None None G5T4 S4? 4.2 Pinyon and juniper woodland, Sonoran desert scrub, Subalpine coniferous forest 1150 3370 3775 11055 1974-01-01
No Photo Available
Ophioglossum californicum California adder's-tongue Ophioglossaceae perennial rhizomatous herb Jan-Jun(Dec) None None G4 S4 4.2 Chaparral, Valley and foothill grassland, Vernal pools (margins) Mesic 60 525 195 1725 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
Sidotheca caryophylloides chickweed oxytheca Polygonaceae annual herb Jul-Sep(Oct) None None G4 S4 4.3 USFS_S Lower montane coniferous forest (sandy) 1114 2600 3655 8530 Yes 1980-01-01 Photo of Sidotheca caryophylloides
©2021 Keir Morse
Acanthoscyphus parishii var. cienegensis Cienega Seca oxytheca Polygonaceae annual herb (May)Jun-Sep None None G4?T2 S2 1B.3 SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Mining, Other, Recreational use (non-ORV), Road/trail construction/maint. Joshua tree "woodland", Pinyon and juniper woodland, Upper montane coniferous forest (granitic, sandy) 2105 2450 6905 8040 Yes 1988-01-01 Photo of Acanthoscyphus parishii var. cienegensis
© 2018 Keir Morse
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
Pedicularis contorta curved-beak lousewort Orobanchaceae perennial herb Jul-Aug None None G5 S3 4.3 Bogs and fens, Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic 1600 2400 5250 7875 1974-01-01 Photo of Pedicularis contorta
©2019 John Doyen
Penstemon californicus California beardtongue Plantaginaceae perennial herb May-Jun(Aug) None None G3 S2 1B.2 SB_CalBG/RSABG; SB_USDA; USFS_S Development, Foot traffic/trampling, Grazing, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Lower montane coniferous forest, Pinyon and juniper woodland Sandy 1170 2300 3840 7545 1974-01-01 Photo of Penstemon californicus
Justin M. Wood 2009
Penstemon personatus closed-throated beardtongue Plantaginaceae perennial herb Jun-Sep(Oct) None None G2 S2 1B.2 SB_UCSC; USFS_S Biocides, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Upper montane coniferous forest 1065 2120 3495 6955 Yes 1974-01-01
No Photo Available
Triteleia ixioides ssp. cookii Cook's triteleia Themidaceae perennial bulbiferous herb May-Jun None None G5T2T3 S2S3 1B.3 BLM_S; SB_UCBG; USFS_S Feral pigs, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Other, Road/trail construction/maint. Cismontane woodland, Closed-cone coniferous forest Seeps, Serpentine 150 700 490 2295 Yes 1974-01-01
No Photo Available
Tropidocarpum capparideum caper-fruited tropidocarpum Brassicaceae annual herb Mar-Apr None None G1 S1 1B.1 SB_CalBG/RSABG; USFS_S Agriculture, Altered flood/tidal/hydrologic regime, Development, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity Valley and foothill grassland (alkaline hills) 1 455 5 1495 Yes 1974-01-01
No Photo Available
Tuctoria 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
Isocoma arguta Carquinez goldenbush Asteraceae perennial shrub Aug-Dec None None G1 S1 1B.1 SB_UCBG Agriculture, Biocides, Development, Grazing, Recreational use (non-ORV), Road/trail construction/maint. Valley and foothill grassland (alkaline) 1 20 5 65 Yes 1994-01-01
No Photo Available
Ivesia longibracteata Castle Crags ivesia Rosaceae perennial herb Jun None None G1 S1 1B.3 SB_BerrySB; USFS_S Recreational use (non-ORV) Lower montane coniferous forest (granitic, rocky) 1200 1400 3935 4595 Yes 1994-01-01 Photo of Ivesia longibracteata
©2011 Shannon Henke
Townsendia condensata cushion townsendia Asteraceae perennial herb Jul-Aug None None G4 S3 2B.3 SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Road/trail construction/maint. Alpine boulder and rock field, Subalpine coniferous forest (gravelly) 2865 3675 9400 12060 2001-01-01
No Photo Available
Eremogone congesta var. charlestonensis Charleston sandwort Caryophyllaceae perennial herb Jun None None G5T2? S1 1B.3 Pinyon and juniper woodland (sandy) 2200 2225 7220 7300 2001-01-01
No Photo Available
Juncus cooperi Cooper's rush Juncaceae perennial herb Apr-May(Aug) None None G4 S3 4.3 SB_CalBG/RSABG Meadows and seeps (mesic, alkaline or saline) -260 1770 -855 5805 1974-01-01 Photo of Juncus cooperi
© 2018 Neal Kramer
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
Lessingia arachnoidea Crystal Springs lessingia Asteraceae annual herb Jul-Oct None None G2 S2 1B.2 SB_CalBG/RSABG Disking, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Cismontane woodland, Coastal scrub, Valley and foothill grassland Roadsides (often), Serpentine 60 200 195 655 Yes 1994-01-01 Photo of Lessingia arachnoidea
© 2008 Neal Kramer
Erythronium revolutum coast fawn lily Liliaceae perennial bulbiferous herb Mar-Jul(Aug) None None G4G5 S3 2B.2 SB_UCSC Altered flood/tidal/hydrologic regime, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Bogs and fens, Broadleafed upland forest, North Coast coniferous forest Mesic, Streambanks 0 1600 0 5250 2001-01-01 Photo of Erythronium revolutum
©2007 Steve Matson
Quercus cedrosensis Cedros Island oak Fagaceae perennial evergreen tree Apr-May None None G3 S1 2B.2 IUCN_VU; SB_CRES; SB_SDBG Improper burning regime, Other, Road/trail construction/maint. Chaparral, Closed-cone coniferous forest, Coastal scrub 255 960 835 3150 2001-01-01
No Photo Available
Phacelia cookei Cooke's phacelia Hydrophyllaceae annual herb Jun-Jul None None G1 S1 1B.1 SB_BerrySB; USFS_S Biocides, Non-native plant impacts, Other, Road/trail construction/maint. Great Basin scrub, Lower montane coniferous forest Sandy, Volcanic 1095 1700 3595 5580 Yes 1974-01-01 Photo of Phacelia cookei
© 1992 Dean Wm. Taylor
Pityopus californicus California pinefoot Ericaceae perennial herb (achlorophyllous) (Mar-Apr)May-Aug None None G4G5 S4 4.2 Broadleafed upland forest, Lower montane coniferous forest, North Coast coniferous forest, Upper montane coniferous forest Mesic 15 2225 50 7300 1974-01-01 Photo of Pityopus californicus
©2009 Barry Rice
Plagiobothrys chorisianus var. chorisianus Choris' popcornflower Boraginaceae annual herb Mar-Jun None None G3T1Q S1 1B.2 BLM_S; SB_UCSC Altered flood/tidal/hydrologic regime, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Coastal prairie, Coastal scrub Mesic 3 160 10 525 Yes 1984-01-01
No Photo Available
Plagiobothrys glyptocarpus var. modestus Cedar Crest popcornflower Boraginaceae annual herb Apr-Jun None None G3THQ SH 3 Cismontane woodland, Valley and foothill grassland (mesic) 870 870 2855 2855 Yes 1980-01-01
No Photo Available
Rhynchospora californica California beaked-rush Cyperaceae perennial rhizomatous herb May-Jul None None G1 S1 1B.1 SB_UCSC Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Grazing, Non-native plant impacts Bogs and fens, Lower montane coniferous forest, Marshes and swamps (freshwater), Meadows and seeps (seeps) 45 1010 150 3315 Yes 1974-01-01 Photo of Rhynchospora californica
© 2004 Steve Matson
Romneya coulteri Coulter's matilija poppy Papaveraceae perennial rhizomatous herb Mar-Jul(Aug) None None G4 S4 4.2 SB_CalBG/RSABG Chaparral, Coastal scrub Burned areas (often) 20 1200 65 3935 1974-01-01
No Photo Available
Rorippa columbiae Columbia yellow cress Brassicaceae perennial rhizomatous herb May-Sep None None G3 S2 1B.2 USFS_S Altered flood/tidal/hydrologic regime, Biocides, Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Lower montane coniferous forest, Meadows and seeps, Playas, Vernal pools Mesic 1200 1800 3935 5905 1980-01-01 Photo of Rorippa columbiae
©2013 Justy Leppert
Sedum paradisum ssp. paradisum Canyon Creek stonecrop Crassulaceae perennial herb May-Jun None None G3G4T3 S3 1B.3 BLM_S; SB_UCSC; USFS_S Foot traffic/trampling, Improper burning regime, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Broadleafed upland forest, Chaparral, Lower montane coniferous forest, Subalpine coniferous forest Granitic, Rocky 300 1900 985 6235 Yes 1980-01-01 Photo of Sedum paradisum ssp. paradisum
©2018 Julie Kierstead Nelson
Senecio clevelandii var. clevelandii Cleveland's ragwort Asteraceae perennial herb Jun-Jul None None G4?T3Q S3 4.3 Chaparral (seeps, serpentinite) 365 900 1200 2955 Yes 1980-01-01
No Photo Available
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
Silene suksdorfii Cascade alpine campion Caryophyllaceae perennial herb Jul-Sep None None G4 S3 2B.3 SB_UCSC Logging Alpine boulder and rock field, Subalpine coniferous forest, Upper montane coniferous forest Rocky, Volcanic 2355 3110 7725 10205 1988-01-01 Photo of Silene suksdorfii
©2008 Shawn DeCew
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
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
Veronica copelandii Copeland's speedwell Plantaginaceae perennial herb Jul-Aug None None G3 S3 4.3 Meadows and seeps, Subalpine coniferous forest Serpentine 1350 2590 4430 8500 Yes 1974-01-01 Photo of Veronica copelandii
© 2014 Steve Matson
Veronica cusickii Cusick's speedwell Plantaginaceae perennial herb Jul-Aug None None G5 S4 4.3 SB_CalBG/RSABG Alpine boulder and rock field, Meadows and seeps, Subalpine coniferous forest, Upper montane coniferous forest 2135 3000 7005 9845 1974-01-01 Photo of Veronica cusickii
© 2008 Ron Wolf
Abronia nana var. covillei Coville's dwarf abronia Nyctaginaceae perennial herb May-Aug None None G4T3 S3 4.2 SB_CalBG/RSABG; USFS_S Great Basin scrub, Joshua tree "woodland", Pinyon and juniper woodland, Subalpine coniferous forest, Upper montane coniferous forest Carbonate, Sandy 1524 3100 5000 10170 1994-01-01 Photo of Abronia nana var. covillei
© 2003 James M. Andre
Allium sanbornii var. congdonii Congdon's onion Alliaceae perennial bulbiferous herb Apr-Jul None None G4T3 S3 4.3 Chaparral, Cismontane woodland Serpentine, Volcanic 300 1395 985 4575 Yes 1994-01-01 Photo of Allium sanbornii var. congdonii
© 2008 Steven Perry
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
Aspidotis carlotta-halliae Carlotta Hall's lace fern Pteridaceae perennial rhizomatous herb Jan-Dec None None G3 S3 4.2 Chaparral, Cismontane woodland Serpentine (usually) 100 1400 330 4595 Yes 1994-01-01
No Photo Available
Cryptantha clokeyi Clokey's cryptantha Boraginaceae annual herb Apr None None G3 S3 1B.2 Mining Mojavean desert scrub 725 1365 2380 4480 Yes 1994-01-01
No Photo Available
Draba californica California draba Brassicaceae perennial herb Jul-Aug None None G3 S3 4.2 Alpine boulder and rock field, Meadows and seeps 3000 4250 9845 13945 1994-01-01
No Photo Available
Centromadia parryi ssp. congdonii Congdon's tarplant Asteraceae annual herb (Apr)May-Oct(Nov) None None G3T2 S2 1B.1 Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Hybridization, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Waterway bank protection/maintenance Valley and foothill grassland (alkaline) 0 230 0 755 Yes 1994-01-01
No Photo Available
Lasthenia glabrata ssp. coulteri Coulter's goldfields Asteraceae annual herb Feb-Jun None None G4T2 S2 1B.1 BLM_S; SB_CalBG/RSABG; SB_SBBG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Disking, Foot traffic/trampling, Grazing, Groundwater pumping, Insufficient population/stand size, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Marshes and swamps (coastal salt), Playas, Vernal pools 1 1220 5 4005 1994-01-01 Photo of Lasthenia glabrata ssp. coulteri
© 2013 Keir Morse
Layia septentrionalis Colusa layia Asteraceae annual herb Apr-May None None G2 S2 1B.2 BLM_S; SB_UCBG Agriculture, Biocides, Development, Erosion/runoff, Grazing, Other, Road/trail construction/maint. Chaparral, Cismontane woodland, Valley and foothill grassland Sandy, Serpentine 100 1095 330 3595 Yes 1994-01-01 Photo of Layia septentrionalis
© 2013 Jake Ruygt
Mucronea californica California spineflower Polygonaceae annual herb Mar-Jul(Aug) None None G3 S3 4.2 SB_CalBG/RSABG Chaparral, Cismontane woodland, Coastal dunes, Coastal scrub, Valley and foothill grassland Sandy 0 1400 0 4595 Yes 1988-01-01 Photo of Mucronea californica
© 2018 Debra L. Cook
Muhlenbergia californica California muhly Poaceae perennial rhizomatous herb Jun-Sep None None G4 S4 4.3 SB_CalBG/RSABG Chaparral, Coastal scrub, Lower montane coniferous forest, Meadows and seeps Mesic, Seeps, Streambanks 100 2000 330 6560 Yes 1994-01-01
No Photo Available
Nemacaulis denudata var. denudata coast woolly-heads Polygonaceae annual herb Apr-Sep None None G3G4T2 S2 1B.2 SB_CalBG/RSABG; SB_CRES Biocides, Disking, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter Coastal dunes 0 100 0 330 1994-01-01
No Photo Available
Opuntia xcurvispina curved-spine beavertail Cactaceae perennial stem Apr-Jun None None G2G3 S1 2B.2 Chaparral, Mojavean desert scrub, Pinyon and juniper woodland 1000 1400 3280 4595 1994-01-01
No Photo Available
Potentilla cristae crested potentilla Rosaceae perennial herb (Jul)Aug-Sep None None G2 S2 1B.3 ORV activity Alpine boulder and rock field, Subalpine coniferous forest Gravelly (sometimes), Mesic (sometimes), Rocky (sometimes), Seeps (often), Serpentine (often) 1800 2800 5905 9185 Yes 1994-01-01 Photo of Potentilla cristae
©2011 Steve Matson
Potentilla rimicola cliff cinquefoil Rosaceae perennial herb Jul-Sep None None G2 S1 2B.3 SB_CalBG/RSABG; USFS_S Foot traffic/trampling Subalpine coniferous forest, Upper montane coniferous forest Granitic, Rocky 2400 2800 7875 9185 1994-01-01
No Photo Available
Sedum divergens Cascade stonecrop Crassulaceae perennial herb Jul-Sep None None G5? S2 2B.3 Alpine boulder and rock field 1600 2330 5250 7645 1994-01-01 Photo of Sedum divergens
© 2021 Scot Loring
Senecio aphanactis chaparral ragwort Asteraceae annual herb Jan-Apr(May) None None G3 S2 2B.2 SB_CalBG/RSABG; SB_CRES Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland, Coastal scrub Alkaline (sometimes) 15 800 50 2625 1994-01-01
No Photo Available
Sidalcea oregana ssp. eximia coast checkerbloom Malvaceae perennial herb Jun-Aug None None G5T1 S1 1B.2 Biocides, Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, Other, Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps, North Coast coniferous forest 5 1340 15 4395 Yes 1994-01-01
No Photo Available
Androsace elongata ssp. acuta California androsace Primulaceae annual herb Mar-Jun None None G5?T3T4 S3S4 4.2 SB_CalBG/RSABG; SB_USDA Chaparral, Cismontane woodland, Coastal scrub, Meadows and seeps, Pinyon and juniper woodland, Valley and foothill grassland 150 1305 490 4280 1994-01-01 Photo of Androsace elongata ssp. acuta
© 2008 Aaron Schusteff
Abronia villosa var. aurita chaparral sand-verbena Nyctaginaceae annual herb (Jan)Mar-Sep None None G5T2? S2 1B.1 BLM_S; SB_CalBG/RSABG; USFS_S Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Channelization, 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., Vandalism/dumping/litter Chaparral, Coastal scrub, Desert dunes Sandy 75 1600 245 5250 2001-01-01 Photo of Abronia villosa var. aurita
© 2011 Aaron E. Sims
Astragalus pycnostachyus var. pycnostachyus coastal marsh milk-vetch Fabaceae perennial herb (Apr-May)Jun-Oct None None G2T2 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_SBBG; SB_UCBG Altered flood/tidal/hydrologic regime, Degraded water quality, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Insufficient population/stand size, 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 Coastal dunes (mesic), Coastal scrub, Marshes and swamps (coastal salt, streamsides) 0 55 0 180 Yes 2001-01-01 Photo of Astragalus pycnostachyus var. pycnostachyus
©2009 Neal Kramer
Calochortus syntrophus Callahan's mariposa-lily Liliaceae perennial bulbiferous herb May-Jun None None G2 S2 1B.1 SB_UCSC Logging, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland (vernally mesic) 525 1145 1725 3755 Yes 2001-01-01 Photo of Calochortus syntrophus
©2018 Julie Kierstead Nelson
Calystegia purpurata ssp. saxicola coastal bluff morning-glory Convolvulaceae perennial herb (Mar)Apr-Sep None None G4T2T3 S2S3 1B.2 BLM_S; SB_UCSC Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal bluff scrub, Coastal dunes, Coastal scrub, North Coast coniferous forest 0 105 0 345 Yes 2001-01-01
No Photo Available
Chylismia claviformis ssp. cruciformis cruciform evening-primrose Onagraceae annual herb May-Jul None None G5T4 S2 2B.3 Grazing, Other, Road/trail construction/maint. Chenopod scrub, Great Basin scrub Clay 600 1400 1970 4595 2001-01-01
No Photo Available
Cryptantha glomeriflora clustered-flower cryptantha Boraginaceae annual herb Jun-Sep None None G4Q S4 4.3 Great Basin scrub, Meadows and seeps, Subalpine coniferous forest, Upper montane coniferous forest Granitic (sometimes), Sandy, Volcanic (sometimes) 1800 3750 5905 12305 Yes 2001-01-01
No Photo Available
Erigeron compactus compact daisy Asteraceae perennial herb May-Jul None None G3 S3 2B.3 Development Pinyon and juniper woodland (carbonate, gravelly, rocky) 1300 2900 4265 9515 2001-01-01
No Photo Available
Hedeoma nana ssp. californica California mock pennyroyal Lamiaceae perennial herb Apr-Jun None None G5T4 S4 4.3 SB_CalBG/RSABG Joshua tree "woodland", Pinyon and juniper woodland Carbonate (often), Rocky 855 2100 2805 6890 2001-01-01 Photo of Hedeoma nana ssp. californica
© 2008 Steve Matson
Euphrosyne acerosa copperwort Asteraceae perennial shrub May-Dec None None G4G5 S3 4.2 SB_CalBG/RSABG Meadows and seeps (alkaline), Playas (saline) 60 900 195 2955 2001-01-01
No Photo Available
Lycium californicum California box-thorn Solanaceae perennial shrub Mar-Aug(Dec) None None G4 S4 4.2 SB_CalBG/RSABG; SB_CRES Coastal bluff scrub, Coastal scrub 5 150 15 490 2001-01-01
No Photo Available
Malacothrix saxatilis var. saxatilis cliff malacothrix Asteraceae perennial rhizomatous herb Mar-Sep None None G5T4 S4 4.2 Coastal bluff scrub, Coastal scrub 3 200 10 655 Yes 2001-01-01
No Photo Available
Mentzelia tridentata creamy blazing star Loasaceae annual herb Mar-May None None G3 S3 1B.3 SB_CalBG/RSABG Development, Grazing, Military operations, Mining, ORV activity Mojavean desert scrub Gravelly, Rocky, Sandy 700 1175 2295 3855 Yes 2001-01-01
No Photo Available
Diplacus cusickioides Cusick's monkeyflower Phrymaceae annual herb May-Aug None None G4G5 S2 2B.3 Altered flood/tidal/hydrologic regime, Grazing Great Basin scrub, Lower montane coniferous forest Gravelly, Roadsides, Scree, Volcanic 600 1830 1970 6005 2001-01-01
No Photo Available
Navarretia cotulifolia cotula navarretia Polemoniaceae annual herb May-Jun None None G4 S4 4.2 Chaparral, Cismontane woodland, Valley and foothill grassland Adobe 4 1830 15 6005 Yes 2001-01-01 Photo of Navarretia cotulifolia
© 2020 Zoya Akulova
Nolina cismontana chaparral nolina Ruscaceae perennial evergreen shrub (Mar)May-Jul None None G3 S3 1B.2 SB_CalBG/RSABG; SB_SBBG; USFS_S Development, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Coastal scrub Gabbroic (sometimes), Sandstone (sometimes) 140 1275 460 4185 Yes 2001-01-01 Photo of Nolina cismontana
© 2005 Santa Monica Mountains National Recreation Area
Physaria chambersii Chambers' physaria Brassicaceae perennial herb Apr-May None None G5 S3 2B.3 SB_CalBG/RSABG Grazing, Non-native animal impacts Pinyon and juniper woodland (carbonate, rocky) 1500 2590 4920 8500 2001-01-01
No Photo Available
Piperia colemanii Coleman's rein orchid Orchidaceae perennial herb Jun-Aug None None G4 S4 4.3 Chaparral, Lower montane coniferous forest Sandy (often) 1200 2300 3935 7545 Yes 2001-01-01 Photo of Piperia colemanii
© 2005 Dean Wm. Taylor
Piperia cooperi chaparral rein orchid Orchidaceae perennial herb Mar-Jun None None G3 S3S4 4.2 SB_CRES Chaparral, Cismontane woodland, Valley and foothill grassland 15 1585 50 5200 2001-01-01
No Photo Available
Sphaeralcea grossulariifolia currant-leaved desert mallow Malvaceae perennial herb May-Oct None None G4G5 S2 2B.3 Other Chenopod scrub, Great Basin scrub Volcanic 1200 2100 3935 6890 2001-01-01
No Photo Available
Utricularia ochroleuca cream-flowered bladderwort Jun-Jul(Aug) None None G4G5 S1 CBR Photo of Utricularia ochroleuca
Barry Rice 2009
Tortula californica California screw moss Pottiaceae moss None None G2G3 S2? 1B.2 BLM_S Chenopod scrub, Valley and foothill grassland Sandy 10 1460 35 4790 Yes 2001-01-01
No Photo Available
Triquetrella californica coastal triquetrella Pottiaceae moss None None G2 S2 1B.2 USFS_S Coastal bluff scrub, Coastal scrub 10 100 35 330 2001-01-01
No Photo Available
Geothallus tuberosus Campbell's liverwort Sphaerocarpaceae ephemeral liverwort None None G2 S2 1B.1 IUCN_CR Coastal scrub (mesic), Vernal pools 10 600 35 1970 Yes 2001-01-01 Photo of Geothallus tuberosus
© 2023 Nathan Taylor
Trichodon cylindricus cylindrical trichodon Ditrichaceae moss None None G4G5 S2 2B.2 Logging, Other, Road/trail construction/maint. Broadleafed upland forest, Meadows and seeps, Upper montane coniferous forest Roadsides, Sandy 50 2002 165 6570 2001-01-01
No Photo Available
Frasera tubulosa Coville's green-gentian Gentianaceae perennial herb Jul-Aug None None G3 S3 4.3 SB_SBBG Lower montane coniferous forest, Upper montane coniferous forest Granitic, Sandy 955 3290 3135 10795 Yes 2017-07-19
No Photo Available
Lomatium canbyi Canby's lomatium Apiaceae perennial herb Apr-Jun None None G5 S3S4 4.3 Great Basin scrub, Pinyon and juniper woodland 1300 2070 4265 6790 2009-06-08
No Photo Available
Crataegus castlegarensis Castlegar hawthorne Rosaceae perennial deciduous shrub May-Jun(Jul) None None G5 S3? 3 Riparian woodland (moist rocky loam) 0 1455 0 4775 2006-06-28 Photo of Crataegus castlegarensis
©2008 John Dittes
Cladium californicum California saw-grass Cyperaceae perennial rhizomatous herb Jun-Sep None None G4 S2 2B.2 SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Development, Grazing, Groundwater pumping, Non-native plant impacts, Road/trail construction/maint., Surface water diversion Marshes and swamps (alkaline, freshwater), Meadows and seeps 60 1600 195 5250 2006-08-17
No Photo Available
Imperata brevifolia California satintail Poaceae perennial rhizomatous herb Sep-May None None G3 S3 2B.1 SB_CalBG/RSABG; SB_SBBG; USFS_S Development Chaparral, Coastal scrub, Meadows and seeps (often alkali), Mojavean desert scrub, Riparian scrub Mesic 0 1215 0 3985 2006-12-26 Photo of Imperata brevifolia
© 2020 Matt C. Berger
Aliciella triodon coyote gilia Polemoniaceae annual herb Apr-Jun None None G5 S2 2B.2 Foot traffic/trampling, Grazing, Non-native animal impacts Great Basin scrub, Pinyon and juniper woodland Sandy (sometimes) 610 1700 2000 5580 2006-10-04 Photo of Aliciella triodon
© 2020 Steve Matson
Iris longipetala coast iris Iridaceae perennial rhizomatous herb Mar-May(Jun) None None G3 S3 4.2 SB_UCSC Coastal prairie, Lower montane coniferous forest, Meadows and seeps Mesic 0 600 0 1970 Yes 2006-10-12 Photo of Iris longipetala
© 2014 Aaron Schusteff
Shepherdia canadensis Canadian buffalo-berry Elaeagnaceae perennial shrub Apr-Jul None None G5 S1 2B.1 Logging Upper montane coniferous forest Rocky, Serpentine, Streambanks 1731 1731 5680 5680 2006-10-13 Photo of Shepherdia canadensis
©2011 Jean Pawek
Fraxinus parryi chaparral ash Oleaceae perennial shrub Mar-May None None G3? S1 2B.2 SB_CalBG/RSABG Chaparral 213 620 700 2035 2007-07-31
No Photo Available
Parnassia cirrata var. intermedia Cascade grass-of-Parnassus Parnassiaceae perennial herb (Jul)Aug-Sep(Oct) None None GNRTNR S3 2B.2 SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Logging, Recreational use (non-ORV), Road/trail construction/maint. Bogs and fens, Meadows and seeps Rocky, Serpentine 780 1980 2560 6495 2007-09-19 Photo of Parnassia cirrata var. intermedia
©2009 Sierra Pacific Industries
Frangula purshiana ssp. ultramafica Caribou coffeeberry Rhamnaceae perennial deciduous shrub May-Jul None None G4T2T3 S2S3 1B.2 SB_UCSC; USFS_S Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Chaparral, Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Serpentine 825 1930 2705 6330 Yes 2008-02-14 Photo of Frangula purshiana ssp. ultramafica
©2014 Kirsten Bovee
Eremogone cliftonii Clifton's eremogone Caryophyllaceae perennial herb Apr-Sep None None G3 S3 1B.3 SB_UCSC; USFS_S Erosion/runoff, Foot traffic/trampling, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Upper montane coniferous forest Granitic (usually), Openings 455 2080 1495 6825 Yes 2008-08-04
No Photo Available
Oenothera cavernae cave evening-primrose Onagraceae annual herb Mar-Nov None None G2G3 S1 2B.1 SB_CalBG/RSABG Development, Grazing, Mining Great Basin scrub, Joshua tree "woodland", Mojavean desert scrub Gravelly 760 1280 2495 4200 2008-08-12 Photo of Oenothera cavernae
© 2008 James M Andre
Sidalcea multifida cut-leaf checkerbloom Malvaceae perennial herb May-Sep None None G3 S2 2B.3 SB_CalBG/RSABG Dam/Inundation, Development, Foot traffic/trampling, Grazing, ORV activity, Other, Recreational use (non-ORV) Great Basin scrub, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland 1750 2800 5740 9185 2009-01-06
No Photo Available
Oreocarya glomerata cocks-comb cat's-eye Boraginaceae perennial herb Jul-Aug None None G5 S1 2B.3 Erosion/runoff, Foot traffic/trampling, Recreational use (non-ORV) Pinyon and juniper woodland 1555 2160 5100 7085 2009-08-03 Photo of Oreocarya glomerata
©2016 Keir Morse
Eriogonum cedrorum Cedars buckwheat Polygonaceae perennial herb Jun-Sep None None G1 S1 1B.3 BLM_S; SB_CalBG/RSABG Closed-cone coniferous forest Serpentine 365 550 1200 1805 Yes 2010-03-01
No Photo Available
Nemacladus calcaratus Chimney Creek nemacladus Campanulaceae annual herb May-Jun None None G1 S1 1B.2 BLM_S; SB_CalBG/RSABG; USFS_S Road/trail construction/maint. Pinyon and juniper woodland Flats, Granitic 1900 2100 6235 6890 Yes 2010-03-09
No Photo Available
Potentilla uliginosa Cunningham Marsh cinquefoil Rosaceae perennial herb May-Aug None None GX SX 1A Agriculture, Development Marshes and swamps (freshwater) 30 40 100 130 Yes 2010-12-20
No Photo Available
Chenopodium littoreum coastal goosefoot Chenopodiaceae annual herb Apr-Aug None None G1 S1 1B.2 SB_SBBG Non-native plant impacts Coastal dunes 10 30 35 100 Yes 2011-06-01 Photo of Chenopodium littoreum
© 2011 Aaron E Sims
Frasera albomarginata var. induta Clark Mountain green-gentian Gentianaceae perennial herb May-Jun(Sep) None None G5T2 S1 1B.2 SB_CalBG/RSABG Grazing Pinyon and juniper woodland Carbonate (usually), Gravelly (sometimes), Rocky (sometimes) 1705 1770 5595 5805 2013-12-10
No Photo Available
Cirsium occidentale var. lucianum Cuesta Ridge thistle Asteraceae perennial herb Apr-Jun None None G3G4T2 S2 1B.2 Improper burning regime, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral (openings) Disturbed areas, Roadsides, Rocky (often), Serpentine, Slopes (often) 500 750 1640 2460 Yes 2011-04-08
No Photo Available
Dudleya virens ssp. hassei Catalina Island dudleya Crassulaceae perennial herb Mar-Jun None None G3?T2 S2 1B.2 SB_CalBG/RSABG Coastal bluff scrub, Coastal scrub Rocky 0 400 0 1310 Yes 2011-03-08
No Photo Available
Monardella eremicola Clark Mountain monardella Lamiaceae perennial shrub Jun-Aug None None G3Q S3 1B.3 BLM_S; SB_CalBG/RSABG Pinyon and juniper woodland, Riparian scrub (desert) Carbonate, Granitic, Rock crevices (usually), Washes 1500 2100 4920 6890 Yes 2011-12-06
No Photo Available
Tiquilia canescens var. pulchella Chocolate Mountains tiquilia Ehretiaceae perennial shrub Feb-May None None G5T3T4 S3 3.2 Sonoran desert scrub Slopes (sometimes), Washes (sometimes) 250 700 820 2295 2012-09-06
No Photo Available
Plagiobothrys torreyi var. perplexans chaparral popcornflower Boraginaceae annual herb Apr-Sep None None G4T3? S3? 4.3 Chaparral, Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Burned areas 1070 2745 3510 9005 Yes 2012-08-21
No Photo Available
Erythranthe carsonensis Carson Valley monkeyflower Phrymaceae annual herb Apr-Jun None None G2 S1 1B.1 SB_CalBG/RSABG Development Great Basin scrub (openings) Granitic 1480 1480 4855 4855 2013-06-19 Photo of Erythranthe carsonensis
Steve Matson, 2013
Didymodon californicus California beard-moss Pottiaceae moss None None G3 S3 4.2 Lower montane coniferous forest (openings) Rocky, Streambanks 1375 1645 4510 5395 Yes 2014-05-14
No Photo Available
Puccinellia simplex California alkali grass Poaceae annual herb Mar-May None None G2 S2 1B.2 BLM_S Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Foot traffic/trampling, Landfill, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chenopod scrub, Meadows and seeps, Valley and foothill grassland, Vernal pools Alkaline, Flats, Lake Margins, Vernally Mesic 2 930 5 3050 2015-10-15 Photo of Puccinellia simplex
© 2017 Chris Winchell
Carex xerophila chaparral sedge Cyperaceae perennial herb Mar-Jun None None G2 S2 1B.2 BLM_S; SB_UCSC Development, Improper burning regime, Non-native plant impacts, ORV activity, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland, Lower montane coniferous forest Gabbroic, Serpentine 440 770 1445 2525 Yes 2016-06-06 Photo of Carex xerophila
© 2023 Steven Perry
Rosa woodsii var. glabrata Cushenbury rose Rosaceae perennial shrub (Apr)May-Aug None None G5T1 S1 1B.1 SB_CalBG/RSABG Mojavean desert scrub (springs) 910 1435 2985 4710 Yes 2016-08-26
No Photo Available
Anemone multifida var. multifida cut-leaf anemone Ranunculaceae perennial herb Apr-Jul None None G5T5 S1S2 2B.2 Other Lower montane coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest Carbonate (sometimes), Gravelly, Rocky, Volcanic (sometimes) 1700 2750 5580 9025 2017-08-28 Photo of Anemone multifida var. multifida
©2017 Dana York
Downingia willamettensis Cascade downingia Campanulaceae annual herb Jun-Jul(Sep) None None G4 S2 2B.2 Cismontane woodland (lake margins), Valley and foothill grassland (lake margins), Vernal pools 15 1110 50 3640 2018-09-20
No Photo Available
Atriplex flavida Carrizo Plain crownscale Chenopodiaceae annual herb Mar-Jul None None G3 S3 1B.3 SB_SBBG Agriculture, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Chenopod scrub, Valley and foothill grassland, Vernal pools Alkaline 585 605 1920 1985 Yes 2019-11-04
No Photo Available
Nama demissa var. covillei Coville's purple mat Namaceae annual herb Feb-May None None G5T3 S3 1B.3 BLM_S Mojavean desert scrub Dry, Flats, Roadsides (often), Sandy, Slopes -85 1800 -280 5905 Yes 2018-05-30
No Photo Available
Claytonia crawfordii Crawford's spring beauty Montiaceae perennial herb Apr-May None None G1 S1 1B.2 Logging Upper montane coniferous forest Openings, Rocky, Volcanic 1540 1920 5055 6300 2021-10-14
No Photo Available
Platismatia lacunosa crinkled rag lichen Parmeliaceae foliose lichen (epiphytic) None None G4 S2? 2B.3 Other North Coast coniferous forest, Riparian woodland 20 2000 65 6560 2022-09-28 Photo of Platismatia lacunosa
© 2014 Chris Wagner
Erigeron conditii Condit's fleabane daisy Asteraceae perennial herb May-Jul None None G1 S1 1B.1 Riparian forest Openings 60 215 195 705 2022-11-17
No Photo Available
Isoetes minima Columbia quillwort Isoetaceae perennial cormiferous herb Jun None None G1G2 S1 1B.1 Meadows and seeps Vernally Mesic 2190 2190 7185 7185 2023-03-29
No Photo Available
Holodiscus discolor var. cedrorum Cedars oceanspray Rosaceae perennial deciduous shrub (Apr)May-Jun(Jul) None None 1B.3 Chaparral (sometimes), Closed-cone coniferous forest Serpentine 170 540 560 1770 2024-04-11 Photo of Holodiscus discolor var. cedrorum
© 2024 Aaron Arthur

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 20 April 2024].