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552 matches found. Click on scientific name for details

Search Criteria: Scientific 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
Centromadia parryi ssp. parryi pappose tarplant Asteraceae annual herb May-Nov None None G3T2 S2 1B.2 BLM_S Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, Other, Road/trail construction/maint. Chaparral, Coastal prairie, Marshes and swamps (coastal salt), Meadows and seeps, Valley and foothill grassland (vernally mesic) Alkaline (often) 0 420 0 1380 Yes 2004-01-01 Photo of Centromadia parryi ssp. parryi
© 2016 John Doyen
Calochortus longebarbatus var. longebarbatus long-haired star-tulip Liliaceae perennial bulbiferous herb Jun-Aug(Sep) None None G4T3 S3 1B.2 SB_BerrySB; USFS_S Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion Great Basin scrub, Lower montane coniferous forest (openings, drainages), Meadows and seeps, Vernal pools Clay, Mesic 1005 1900 3295 6235 1974-01-01 Photo of Calochortus longebarbatus var. longebarbatus
©2020 John Doyen
Calochortus monanthus single-flowered mariposa-lily Liliaceae perennial bulbiferous herb Jun None None GX SX 1A Grazing, Non-native plant impacts Meadows and seeps 745 800 2445 2625 Yes 1974-01-01
No Photo Available
Calochortus obispoensis San Luis mariposa-lily Liliaceae perennial bulbiferous herb May-Jul None None G2 S2 1B.2 SB_CalBG/RSABG; SB_SBBG; USFS_S Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland Serpentine (often) 50 730 165 2395 Yes 1974-01-01
No Photo Available
Calochortus palmeri var. munzii San Jacinto mariposa-lily Liliaceae perennial bulbiferous herb Apr-Jul None None G3T3 S3 1B.2 BLM_S; SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Meadows and seeps 855 2200 2805 7220 Yes 1974-01-01
No Photo Available
Calochortus persistens Siskiyou mariposa-lily Liliaceae perennial bulbiferous herb Jun-Jul None CR G2 S2 1B.2 SB_BerrySB; USFS_S Foot traffic/trampling, Improper burning regime, Logging, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Road/trail construction/maint. Lower montane coniferous forest, North Coast coniferous forest Acidic, Rocky 1000 1860 3280 6105 1974-01-01 Photo of Calochortus persistens
©2014 Scot Loring
Calochortus pulchellus Mt. Diablo fairy-lantern Liliaceae perennial bulbiferous herb Apr-Jun None None G2 S2 1B.2 SB_CalBG/RSABG Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Riparian woodland, Valley and foothill grassland 30 840 100 2755 Yes 1974-01-01
No Photo Available
Calochortus raichei Cedars fairy-lantern Liliaceae perennial bulbiferous herb May-Aug None None G2 S2 1B.2 BLM_S; SB_UCSC Road/trail construction/maint. Chaparral, Closed-cone coniferous forest Serpentine 200 490 655 1610 Yes 1988-01-01
No Photo Available
Calochortus simulans La Panza mariposa-lily Liliaceae perennial bulbiferous herb Apr-Jun None None G2 S2 1B.3 SB_CRES; SB_SBBG; USFS_S Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland Granitic (often), Sandy, Serpentine (sometimes) 325 1150 1065 3775 Yes 1980-01-01 Photo of Calochortus simulans
© 2011 Aaron E. Sims
Calochortus striatus alkali mariposa-lily Liliaceae perennial bulbiferous herb Apr-Jun None None G3 S2S3 1B.2 BLM_S; SB_CalBG/RSABG; USFS_S Agriculture, Dam/Inundation, Development, Foot traffic/trampling, Grazing, Groundwater pumping, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter Chaparral, Chenopod scrub, Meadows and seeps, Mojavean desert scrub Alkaline, Mesic 70 1595 230 5235 1974-01-01
No Photo Available
Calochortus tiburonensis Tiburon mariposa-lily Liliaceae perennial bulbiferous herb Mar-Jun FT CT G1 S1 1B.1 SB_UCBG Foot traffic/trampling, Non-native plant impacts Valley and foothill grassland (serpentinite) 50 150 165 490 Yes 1974-01-01
No Photo Available
Calochortus umbellatus Oakland star-tulip Liliaceae perennial bulbiferous herb Mar-May None None G3? S3? 4.2 SB_UCBG Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland Serpentine (often) 100 700 330 2295 Yes 1980-01-01
No Photo Available
Calochortus westonii Shirley Meadows star-tulip Liliaceae perennial bulbiferous herb May-Jun None None G3 S3 1B.2 BLM_S; SB_CalBG/RSABG; SB_UCSC; USFS_S Development, Foot traffic/trampling, Grazing, Improper burning regime, Logging, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Broadleafed upland forest, Lower montane coniferous forest, Meadows and seeps Granitic 1500 2105 4920 6905 Yes 1974-01-01
No Photo Available
Calycadenia hooveri Hoover's calycadenia Asteraceae annual herb Jul-Sep None None G2 S2 1B.3 Agriculture, Development, Grazing, Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland Rocky 65 300 215 985 Yes 1980-01-01
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
Calyptridium parryi var. hesseae Santa Cruz Mountains pussypaws Montiaceae annual herb May-Aug None None G3G4T2 S2 1B.1 BLM_S; SB_UCBG Development, Non-native plant impacts, ORV activity, Other Chaparral, Cismontane woodland Gravelly (sometimes), Openings, Sandy (sometimes) 305 1530 1000 5020 Yes 1984-01-01
No Photo Available
Calyptridium pulchellum Mariposa pussypaws Montiaceae annual herb Apr-Aug FT None G1 S1 1B.1 Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland Granitic, Gravelly (sometimes), Sandy (sometimes) 400 1100 1310 3610 Yes 1980-01-01
No Photo Available
Calyptridium quadripetalum four-petaled pussypaws Montiaceae annual herb Apr-Jun None None G4 S4 4.3 SB_UCBG Chaparral, Lower montane coniferous forest Gravelly (sometimes), Sandy (sometimes), Serpentine (usually) 315 2040 1035 6695 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
Calystegia collina ssp. oxyphylla Mt. Saint Helena morning-glory Convolvulaceae perennial rhizomatous herb Apr-Jun None None G4T3 S3 4.2 Erosion/runoff, Foot traffic/trampling, Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Lower montane coniferous forest, Valley and foothill grassland Serpentine 279 1010 915 3315 Yes 1984-01-01
No Photo Available
Calystegia collina ssp. venusta South Coast Range morning-glory Convolvulaceae perennial rhizomatous herb Apr-Jun None None G4T4 S4 4.3 Chaparral, Cismontane woodland, Valley and foothill grassland Serpentine (sometimes) 270 1490 885 4890 Yes 1984-01-01
No Photo Available
Calochortus clavatus var. avius Pleasant Valley mariposa-lily Liliaceae perennial bulbiferous herb May-Jul None None G4T2 S2 1B.2 SB_SBBG; USFS_S Agriculture, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Lower montane coniferous forest (Josephine silt loam, volcanic) 305 1800 1000 5905 Yes 1980-01-01
No Photo Available
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
Calochortus dunnii Dunn's mariposa-lily Liliaceae perennial bulbiferous herb (Feb)Apr-Jun None CR G2G3 S2S3 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S Development, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Closed-cone coniferous forest, Valley and foothill grassland Gabbroic (sometimes), Rocky 185 1830 605 6005 1974-01-01
No Photo Available
Calochortus excavatus Inyo County star-tulip Liliaceae perennial bulbiferous herb Apr-Jul None None G2 S2 1B.1 BLM_S; SB_SBBG; USFS_S Grazing, Groundwater pumping, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chenopod scrub, Meadows and seeps Alkaline, Mesic 1150 2000 3775 6560 Yes 1974-01-01
No Photo Available
Calochortus greenei Greene's mariposa-lily Liliaceae perennial bulbiferous herb Jun-Aug None None G3 S2S3 1B.2 BLM_S; SB_BerrySB; USFS_S Development, Feral pigs, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Cismontane woodland, Meadows and seeps, Pinyon and juniper woodland, Upper montane coniferous forest Volcanic 1035 1890 3395 6200 1974-01-01 Photo of Calochortus greenei
© 2013 Scot Loring
Calystegia macrostegia ssp. amplissima island morning-glory Convolvulaceae perennial herb Feb-Jul None None G4G5T4 S4 4.3 SB_CalBG/RSABG Coastal bluff scrub, Coastal dunes, Valley and foothill grassland Rocky 10 275 35 900 Yes 1984-01-01
No Photo Available
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
Calystegia peirsonii Peirson's morning-glory Convolvulaceae perennial rhizomatous herb Apr-Jun None None G4 S4 4.2 Grazing Chaparral, Chenopod scrub, Cismontane woodland, Coastal scrub, Lower montane coniferous forest, Valley and foothill grassland 30 1500 100 4920 Yes 1974-01-01
No Photo Available
Calystegia stebbinsii Stebbins' morning-glory Convolvulaceae perennial rhizomatous herb Apr-Jul FE CE G1 S1 1B.1 SB_CalBG/RSABG Biocides, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Landfill, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral (openings), Cismontane woodland Gabbroic (sometimes), Seeps (sometimes) 185 1090 605 3575 Yes 1980-01-01
No Photo Available
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
Camissonia benitensis San Benito evening-primrose Onagraceae annual herb Apr-Jun FD None G2 S2 1B.1 SB_SBBG; SB_UCBG Altered flood/tidal/hydrologic regime, Development, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Cismontane woodland, Valley and foothill grassland Carbonate (sometimes), Gravelly (sometimes), Serpentine 600 1280 1970 4200 Yes 1974-01-01 Photo of Camissonia benitensis
© 2005 David A Tharp
Collomia larsenii talus collomia Polemoniaceae perennial rhizomatous herb Jul-Sep(Oct) None None G4 S2 2B.2 USFS_S Foot traffic/trampling, Road/trail construction/maint. Alpine boulder and rock field, Closed-cone coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest Talus, Volcanic 2210 3500 7250 11485 1980-01-01 Photo of Collomia larsenii
© 2009 Leigh Johnson
Collomia diversifolia serpentine collomia Polemoniaceae annual herb May-Jun None None G4 S4 4.3 SB_UCSC Chaparral, Cismontane woodland Gravelly (sometimes), Rocky (sometimes), Serpentine (sometimes) 200 600 655 1970 Yes 1974-01-01 Photo of Collomia diversifolia
©2019 Zoya Akulova
Collomia rawsoniana Rawson's flaming trumpet Polemoniaceae perennial rhizomatous herb Jul-Aug None None G2 S2 1B.2 SB_SBBG; USFS_S Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps, Riparian forest Mesic 780 2200 2560 7220 Yes 1974-01-01
No Photo Available
Collomia tracyi Tracy's collomia Polemoniaceae annual herb Jun-Jul None None G4 S4 4.3 Broadleafed upland forest, Lower montane coniferous forest Rocky, Serpentine (sometimes) 300 2100 985 6890 Yes 1974-01-01 Photo of Collomia tracyi
©2018 Julie Kierstead Nelson
Colubrina californica Las Animas colubrina Rhamnaceae perennial deciduous shrub Apr-Jun None None G4 S2S3 2B.3 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Non-native plant impacts, ORV activity Mojavean desert scrub, Sonoran desert scrub 10 1000 35 3280 1980-01-01
No Photo Available
Comarostaphylis diversifolia ssp. diversifolia summer holly Ericaceae perennial evergreen shrub Apr-Jun None None G3T2 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES Agriculture, Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Improper burning regime, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland 30 790 100 2590 1980-01-01
No Photo Available
Cordylanthus capitatus Yakima bird's-beak Orobanchaceae annual herb (hemiparasitic) Jul-Sep None None G4 S2 2B.2 Grazing, Logging, ORV activity, Recreational use (non-ORV) Great Basin scrub, Lower montane coniferous forest, Pinyon and juniper woodland 1800 2377 5905 7800 1974-01-01
No Photo Available
Centromadia parryi ssp. australis southern tarplant Asteraceae annual herb May-Nov None None G3T2 S2 1B.1 SB_CalBG/RSABG; SB_CRES; SB_SBBG Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Hybridization, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Waterway bank protection/maintenance, Wood cutting or brush clearing Marshes and swamps (margins), Valley and foothill grassland (vernally mesic), Vernal pools 0 480 0 1575 1994-01-01
No Photo Available
Carex idahoa Idaho sedge Cyperaceae perennial rhizomatous herb Jul None None G3 S1 2B.3 Meadows and seeps, Subalpine coniferous forest 2850 3200 9350 10500 1988-01-01
No Photo Available
Carex petasata Liddon's sedge Cyperaceae perennial herb May-Jul None None G5 S3 2B.3 Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Wood cutting or brush clearing Broadleafed upland forest, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland 600 3320 1970 10895 1984-01-01 Photo of Carex petasata
©2019 Sierra Pacific Industries
Carex praticola northern meadow sedge Cyperaceae perennial herb May-Jul None None G5 S2 2B.2 Grazing, Logging Meadows and seeps (mesic) 0 3200 0 10500 1984-01-01 Photo of Carex praticola
©2013 Scot Loring
Carex sheldonii Sheldon's sedge Cyperaceae perennial rhizomatous herb May-Aug None None G4 S2 2B.2 Altered flood/tidal/hydrologic regime, Dam/Inundation, Degraded water quality, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest (mesic), Marshes and swamps (freshwater), Riparian scrub 1200 2012 3935 6600 1980-01-01 Photo of Carex sheldonii
©2015 Steve Matson
Carex tompkinsii Tompkins' sedge Cyperaceae perennial rhizomatous herb May-Jul None CR G3G4 S3S4 4.3 Biocides, Development, Erosion/runoff, Foot traffic/trampling, Road/trail construction/maint. Chaparral, Cismontane woodland, Lower montane coniferous forest, Upper montane coniferous forest Granitic (sometimes) 420 1830 1380 6005 Yes 1980-01-01
No Photo Available
Carpenteria californica tree-anemone Hydrangeaceae perennial evergreen shrub (Apr)May-Jul None CT G1? S1? 1B.2 SB_CalBG/RSABG; SB_UCBG; USFS_S Dam/Inundation, Development, Grazing, Improper burning regime, Logging, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland Granitic (usually) 340 1340 1115 4395 Yes 1974-01-01
No Photo Available
Clarkia borealis ssp. borealis northern clarkia Onagraceae annual herb Jun-Sep None None G3T4 S4 4.3 BLM_S; SB_UCSC; USFS_S Altered flood/tidal/hydrologic regime, Biocides, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland, Lower montane coniferous forest Roadsides (often) 400 1565 1310 5135 Yes 1980-01-01 Photo of Clarkia borealis ssp. borealis
©2018 Sierra Pacific Industries
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 delicata delicate clarkia Onagraceae annual herb Apr-Jun None None G3 S3 1B.2 BLM_S; SB_CRES Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Cismontane woodland Gabbroic (often) 235 1000 770 3280 1974-01-01
No Photo Available
Clarkia exilis slender clarkia Onagraceae annual herb Apr-May None None G3 S3 4.3 SB_UCBG Cismontane woodland 120 1000 395 3280 Yes 1974-01-01
No Photo Available
Clarkia franciscana Presidio clarkia Onagraceae annual herb May-Jul FE CE G1 S1 1B.1 SB_UCBG Development, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal scrub, Valley and foothill grassland (serpentinite) 25 335 80 1100 Yes 1974-01-01
No Photo Available
Clarkia imbricata Vine Hill clarkia Onagraceae annual herb Jun-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Agriculture, Development, Hybridization, Non-native plant impacts, Other, Over-collecting/poaching, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Valley and foothill grassland Acidic, Loam, Sandy 50 75 165 245 Yes 1974-01-01
No Photo Available
Clarkia jolonensis Jolon clarkia Onagraceae annual herb Apr-Jun None None G2 S2 1B.2 SB_SBBG; USFS_S Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Road/trail construction/maint. Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland 20 660 65 2165 Yes 1980-01-01
No Photo Available
Clarkia lewisii Lewis' clarkia Onagraceae annual herb (Feb)May-Jul None None G4 S4 4.3 SB_CalBG/RSABG; SB_SBBG Broadleafed upland forest, Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub 30 1195 100 3920 Yes 1980-01-01
No Photo Available
Clarkia lingulata Merced clarkia Onagraceae annual herb May-Jun None CE G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG; USFS_S Biocides, Erosion/runoff, Grazing, Non-native plant impacts, Road/trail construction/maint. Chaparral, Cismontane woodland 400 455 1310 1495 Yes 1974-01-01
No Photo Available
Clarkia mildrediae ssp. mildrediae Mildred's clarkia Onagraceae annual herb May-Aug None None G3T3? S3? 1B.3 SB_UCSC; USFS_S Biocides, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Lower montane coniferous forest Granitic (usually), Sandy 245 1710 805 5610 Yes 1974-01-01
No Photo Available
Clarkia mosquinii Mosquin's clarkia Onagraceae annual herb May-Jul(Sep) None None G2 S2 1B.1 BLM_S; SB_CalBG/RSABG; USFS_S Biocides, Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland, Lower montane coniferous forest Roadsides, Rocky 185 1490 605 4890 Yes 1980-01-01 Photo of Clarkia mosquinii
© 2002 Dean Wm Taylor
Clarkia rostrata beaked clarkia Onagraceae annual herb Apr-May None None G2G3 S2S3 1B.3 BLM_S; SB_CalBG/RSABG; SB_UCBG Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland 60 500 195 1640 Yes 1974-01-01
No Photo Available
Clarkia speciosa ssp. immaculata Pismo clarkia Onagraceae annual herb May-Jul FE CR G4T1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral (margins, openings), Cismontane woodland, Valley and foothill grassland Sandy 25 185 80 605 Yes 1980-01-01
No Photo Available
Clarkia springvillensis Springville clarkia Onagraceae annual herb (Mar)Apr-Jul FT CE G2 S2 1B.2 SB_UCSC Biocides, Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Wood cutting or brush clearing Chaparral, Cismontane woodland, Valley and foothill grassland Granitic 245 1220 805 4005 Yes 1980-01-01
No Photo Available
Clarkia tembloriensis ssp. calientensis Vasek's clarkia Onagraceae annual herb Apr None None G3T1 S1 1B.1 SB_CalBG/RSABG Grazing, Non-native plant impacts Valley and foothill grassland 275 500 900 1640 Yes 1980-01-01
No Photo Available
Chloropyron maritimum ssp. maritimum salt marsh bird's-beak Orobanchaceae annual herb (hemiparasitic) May-Oct(Nov) FE CE G4?T1 S1 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES; SB_SBBG Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Insufficient population/stand size, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Coastal dunes, Marshes and swamps (coastal salt) 0 30 0 100 1974-01-01
No Photo Available
Chloropyron maritimum ssp. palustre Point Reyes salty bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Oct None None G4?T2 S2 1B.2 BLM_S; SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Degraded water quality, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Insufficient population/stand size, Non-native plant impacts, ORV activity, Other, Pollution, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter Marshes and swamps (coastal salt) 0 10 0 35 1974-01-01 Photo of Chloropyron maritimum ssp. palustre
©2017 John Doyen
Chloropyron molle ssp. hispidum hispid salty bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Sep None None G2T1 S1 1B.1 Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Meadows and seeps, Playas, Valley and foothill grassland Alkaline 1 155 5 510 Yes 1974-01-01
No Photo Available
Chloropyron molle ssp. molle soft salty bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Nov FE CR G2T1 S1 1B.2 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Channelization, Development, Disking, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Military operations, Non-native plant impacts, ORV activity, Other, Pollution, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter Marshes and swamps (coastal salt) 0 3 0 10 Yes 1974-01-01 Photo of Chloropyron molle ssp. molle
© 2014 John Doyen
Cordylanthus nidularius Mt. Diablo bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Aug None CR G1 S1 1B.1 SB_UCBG Feral pigs, Foot traffic/trampling, Road/trail construction/maint. Chaparral (serpentinite) 600 800 1970 2625 Yes 1974-01-01
No Photo Available
Ceanothus maritimus maritime ceanothus Rhamnaceae perennial evergreen shrub Jan-Apr None CR G2 S2 1B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing Chaparral (maritime), Coastal bluff scrub, Valley and foothill grassland Clay 10 150 35 490 Yes 1974-01-01
No Photo Available
Ceanothus masonii Mason's ceanothus Rhamnaceae perennial evergreen shrub Mar-Apr None CR G1 S1 1B.2 SB_CalBG/RSABG; SB_USDA Grazing, Improper burning regime, Other, Road/trail construction/maint. Chaparral (openings, rocky, serpentinite) 230 500 755 1640 Yes 1974-01-01
No Photo Available
Ceanothus purpureus holly-leaved ceanothus Rhamnaceae perennial evergreen shrub Feb-Jun None None G2 S2 1B.2 SB_SBBG Agriculture, Development, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland Rocky, Volcanic 120 640 395 2100 Yes 1974-01-01 Photo of Ceanothus purpureus
© 2012 Jake Ruygt
Ceanothus rigidus Monterey ceanothus Rhamnaceae perennial evergreen shrub Feb-Apr(Jun) None None G4 S4 4.2 SB_SBBG Chaparral, Closed-cone coniferous forest, Coastal scrub Sandy 3 550 10 1805 Yes 1974-01-01
No Photo Available
Ceanothus roderickii Pine Hill ceanothus Rhamnaceae perennial evergreen shrub Apr-Jun FE CR G1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Development, Erosion/runoff, Improper burning regime, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland Gabbroic (sometimes), Serpentine (sometimes) 245 1090 805 3575 Yes 1974-01-01
No Photo Available
Ceanothus sonomensis Sonoma ceanothus Rhamnaceae perennial evergreen shrub Feb-Apr None None G2 S2 1B.2 SB_SBBG Development, Improper burning regime, Other, Road/trail construction/maint. Chaparral (sandy, serpentinite, volcanic) 215 800 705 2625 Yes 1974-01-01
No Photo Available
Ceanothus verrucosus wart-stemmed ceanothus Rhamnaceae perennial evergreen shrub Dec-May None None G2 S2? 2B.2 SB_CalBG/RSABG; SB_CRES; SB_UCBG Agriculture, Dam/Inundation, Development, Foot traffic/trampling, Improper burning regime, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Coastal scrub 1 380 5 1245 1974-01-01 Photo of Ceanothus verrucosus
© Rick York and CNPS
Crocanthemum greenei island rush-rose Cistaceae perennial evergreen shrub (Jan)Mar-Jul(Aug) FT None G3 S3 1B.2 SB_SBBG Erosion/runoff, Foot traffic/trampling, Grazing, Non-native animal impacts, Non-native plant impacts, Other, Over-collecting/poaching, Road/trail construction/maint. Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub Openings, Rocky 15 490 50 1610 Yes 1974-01-01
No Photo Available
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
Camissonia sierrae ssp. alticola Mono Hot Springs evening-primrose Onagraceae annual herb May-Aug None None G3T2 S2 1B.2 USFS_S Development, Erosion/runoff, Foot traffic/trampling, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest, Upper montane coniferous forest Granitic, Gravelly 1035 2410 3395 7905 Yes 1980-01-01
No Photo Available
Camissonia tanacetifolia ssp. quadriperforata CBR 1980-01-01
No Photo Available
Campanula scabrella rough harebell Campanulaceae perennial rhizomatous herb Aug-Sep None None G4 S4 4.3 SB_CalBG/RSABG Alpine boulder and rock field (serpentinite, volcanic) 2285 2800 7495 9185 1974-01-01 Photo of Campanula scabrella
©2008 Robert E. Preston, Ph.D.
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
Cardamine nuttallii var. gemmata yellow-tubered toothwort Brassicaceae perennial rhizomatous herb Apr-May(Jun) None None G5T3Q S2 3.3 Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Lower montane coniferous forest, North Coast coniferous forest Serpentine 100 700 330 2295 1974-01-01 Photo of Cardamine nuttallii var. gemmata
©2004 Norman Jensen
Cardamine pachystigma var. dissectifolia dissected-leaved toothwort Brassicaceae perennial rhizomatous herb Feb-May None None G3G5T2Q S2 1B.2 Biocides, Improper burning regime, ORV activity, Road/trail construction/maint. Chaparral, Lower montane coniferous forest Rocky, Serpentine (usually) 255 2100 835 6890 Yes 1988-01-01
No Photo Available
Carex albida CBR 1974-01-01
No Photo Available
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
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
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
Calamagrostis crassiglumis Thurber's reed grass Poaceae perennial rhizomatous herb May-Aug None None G3Q S2 2B.1 Foot traffic/trampling, Grazing, Non-native plant impacts, Road/trail construction/maint. Coastal scrub (mesic), Marshes and swamps (freshwater) 10 60 35 195 1980-01-01
No Photo Available
Calamagrostis foliosa leafy reed grass Poaceae perennial herb May-Sep None CR G3 S3 4.2 Development, Grazing, Other, Recreational use (non-ORV) Coastal bluff scrub, North Coast coniferous forest Rocky 0 1220 0 4005 Yes 1980-01-01 Photo of Calamagrostis foliosa
©2011 Zoya Akulova
Calamagrostis ophitidis serpentine reed grass Poaceae perennial herb Apr-Jul None None G3 S3 4.3 Chaparral (openings, often north-facing slopes), Lower montane coniferous forest, Meadows and seeps, Valley and foothill grassland Rocky, Serpentine 90 1065 295 3495 Yes 1974-01-01
No Photo Available
Clinopodium chandleri San Miguel savory Lamiaceae perennial shrub Mar-Jul None None G2G3 S2 1B.2 BLM_S; SB_CRES; USFS_S Biocides, Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland, Valley and foothill grassland Gabbroic (sometimes), Rocky (sometimes) 120 1075 395 3525 1974-01-01
No Photo Available
Cistanthe maritima seaside cistanthe Montiaceae annual herb (Feb)Mar-Jun(Aug) None None G3G4 S3 4.2 SB_CalBG/RSABG; SB_SBBG Coastal bluff scrub, Coastal scrub, Valley and foothill grassland Sandy 5 300 15 985 1980-01-01
No Photo Available
Calliandra eriophylla pink fairy-duster Fabaceae perennial deciduous shrub Jan-Mar None None G5 S3 2B.3 SB_CalBG/RSABG Mining, ORV activity, Other, Vandalism/dumping/litter Sonoran desert scrub (sandy, rocky) 120 1500 395 4920 1980-01-01
No Photo Available
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
Calochortus clavatus var. recurvifolius Arroyo de la Cruz mariposa-lily Liliaceae perennial bulbiferous herb Jun-Jul None None G4T1 S1 1B.2 Erosion/runoff, Grazing Chaparral (maritime), Coastal bluff scrub, Coastal prairie, Lower montane coniferous forest 10 120 35 395 Yes 1974-01-01
No Photo Available
Camissoniopsis guadalupensis ssp. clementina San Clemente Island evening-primrose Onagraceae annual herb Apr-Jun None None G3T2 S2 1B.2 SB_CalBG/RSABG; SB_CRES Development, Non-native plant impacts Coastal dunes 0 30 0 100 Yes 1974-01-01
No Photo Available
Camissoniopsis hardhamiae Hardham's evening-primrose Onagraceae annual herb Mar-May None None G2 S2 1B.2 BLM_S; USFS_S Biocides, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Chaparral, Cismontane woodland Burned areas (sometimes), Carbonate, Disturbed areas (sometimes), Sandy 140 945 460 3100 Yes 1980-01-01
No Photo Available
Camissonia integrifolia Kern River evening-primrose Onagraceae annual herb (Apr)May None None G2 S2 1B.3 Foot traffic/trampling, Road/trail construction/maint. Chaparral, Mojavean desert scrub Openings, Sandy 700 1200 2295 3935 Yes 1980-01-01 Photo of Camissonia integrifolia
© 2015 John Game
Camissonia kernensis ssp. kernensis Kern County evening-primrose Onagraceae annual herb Mar-May None None G4T3 S3 4.3 Chaparral, Joshua tree "woodland", Pinyon and juniper woodland Granitic, Gravelly (sometimes), Sandy (sometimes) 790 2130 2590 6990 Yes 1980-01-01
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
Carex davyi Davy's sedge Cyperaceae perennial herb May-Aug None None G3 S3 1B.3 SB_UCSC Logging, ORV activity Subalpine coniferous forest, Upper montane coniferous forest 1500 3200 4920 10500 1974-01-01
No Photo Available
Carex duriuscula spikerush sedge Cyperaceae perennial rhizomatous herb Jul-Aug None None G5 S2 2B.3 Great Basin scrub, Subalpine coniferous forest 3500 4100 11485 13450 1980-01-01
No Photo Available
Carex scabriuscula Siskiyou sedge Cyperaceae perennial rhizomatous herb May-Jul None None G3G4 S4 4.3 SB_BerrySB; SB_UCSC Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic, Seeps (sometimes), Serpentine (sometimes) 710 2345 2330 7695 1980-01-01 Photo of Carex scabriuscula
©2009 Julie Kierstead Nelson
Carex halliana Oregon sedge Cyperaceae perennial rhizomatous herb (May)Jul-Sep None None G4G5 S2 2B.3 Foot traffic/trampling, Improper burning regime, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Meadows and seeps, Subalpine coniferous forest, Upper montane coniferous forest 1370 2105 4495 6905 1980-01-01 Photo of Carex halliana
©2010 Keir Morse
Carex lasiocarpa woolly-fruited sedge Cyperaceae perennial rhizomatous herb Jun-Jul None None G5 S2 2B.3 IUCN_LC Altered flood/tidal/hydrologic regime, Grazing, Logging, Recreational use (non-ORV) Bogs and fens, Marshes and swamps (freshwater, lake margins) 1700 2100 5580 6890 1980-01-01 Photo of Carex lasiocarpa
© 2011 Sierra Pacific Industries
Carex livida livid sedge Cyperaceae perennial rhizomatous herb Jun None None G5 SH 2A Bogs and fens 0 0 0 0 1974-01-01
No Photo Available
Carex obispoensis San Luis Obispo sedge Cyperaceae perennial cespitose herb Apr-Jun None None G3? S3? 1B.2 BLM_S; SB_SBBG; USFS_S Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Feral pigs, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Closed-cone coniferous forest, Coastal prairie, Coastal scrub, Valley and foothill grassland Clay (often), Gabbroic (sometimes), Seeps (often), Serpentine (often) 10 820 35 2690 Yes 1974-01-01
No Photo Available
Castela emoryi Emory's crucifixion-thorn Simaroubaceae perennial deciduous shrub (Apr)Jun-Jul(Sep-Oct) None None G3G4 S2S3 2B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Mojavean desert scrub, Playas, Sonoran desert scrub Gravelly 90 725 295 2380 1974-01-01
No Photo Available
Castilleja brevilobata short-lobed paintbrush Orobanchaceae perennial herb (hemiparasitic) Apr-Jul None None G4 S3 4.2 Lower montane coniferous forest (edges, openings, serpentinite) 120 1700 395 5580 1974-01-01 Photo of Castilleja brevilobata
© 2021 Scot Loring
Castilleja cinerea ash-gray paintbrush Orobanchaceae perennial herb (hemiparasitic) Jun-Aug FT None G1G2 S1S2 1B.2 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Meadows and seeps, Mojavean desert scrub, Pebble (Pavement) plain, Pinyon and juniper woodland, Upper montane coniferous forest (clay, openings) 1800 2960 5905 9710 Yes 1974-01-01
No Photo Available
Castilleja elata Siskiyou paintbrush Orobanchaceae perennial herb (hemiparasitic) May-Aug None None G3 S2S3 2B.2 Foot traffic/trampling, Logging, Mining, Other, Road/trail construction/maint. Bogs and fens, Lower montane coniferous forest (seeps) Serpentine (often) 0 1750 0 5740 1980-01-01 Photo of Castilleja elata
© 2021 Scot Loring
Castilleja gleasoni Mt. Gleason paintbrush Orobanchaceae perennial herb (hemiparasitic) May-Jun(Sep) None CR G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Pinyon and juniper woodland Granitic 1160 2170 3805 7120 Yes 1974-01-01
No Photo Available
Castilleja grisea San Clemente Island paintbrush Orobanchaceae perennial herb (hemiparasitic) Feb-Aug(Dec) FD CE G3 S3 1B.3 SB_CalBG/RSABG; SB_SBBG Erosion/runoff, Improper burning regime Coastal bluff scrub, Coastal scrub Rocky 10 535 35 1755 Yes 1974-01-01 Photo of Castilleja grisea
© 2014 John Game
Castilleja hololeuca island white-felted paintbrush Orobanchaceae perennial herb (hemiparasitic) Feb-Sep None None G3 S3 1B.2 Chaparral, Closed-cone coniferous forest, Coastal scrub Rocky 20 365 65 1200 Yes 1980-01-01
No Photo Available
Castilleja latifolia Monterey Coast paintbrush Orobanchaceae perennial herb (hemiparasitic) Feb-Sep None None G4 S4 4.3 Cismontane woodland (openings), Closed-cone coniferous forest, Coastal dunes, Coastal scrub Sandy 0 185 0 605 Yes 1974-01-01
No Photo Available
Castilleja mendocinensis Mendocino Coast paintbrush Orobanchaceae perennial herb (hemiparasitic) Apr-Aug None None G2 S2 1B.2 BLM_S; SB_UCSC Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Closed-cone coniferous forest, Coastal bluff scrub, Coastal dunes, Coastal prairie, Coastal scrub 0 160 0 525 1974-01-01 Photo of Castilleja mendocinensis
©2015 John Doyen
Castilleja mollis soft-leaved paintbrush Orobanchaceae perennial herb (hemiparasitic) Apr-Aug FE None G2 S2 1B.1 SB_SBBG Coastal bluff scrub, Coastal dunes 5 20 15 65 Yes 1974-01-01
No Photo Available
Castilleja montigena Heckard's paintbrush Orobanchaceae perennial herb (hemiparasitic) May-Aug None None G3 S3 4.3 Lower montane coniferous forest, Pinyon and juniper woodland, Upper montane coniferous forest 1950 2800 6400 9185 Yes 1974-01-01
No Photo Available
Castilleja affinis var. neglecta Tiburon paintbrush Orobanchaceae perennial herb (hemiparasitic) Apr-Jun FE CT G4G5T1T2 S1S2 1B.2 SB_CalBG/RSABG; SB_UCBG Development, Feral pigs, Foot traffic/trampling, Grazing, Landfill, Mining, Non-native plant impacts, ORV activity, Other Valley and foothill grassland (serpentinite) 60 400 195 1310 Yes 1974-01-01
No Photo Available
Castilleja plagiotoma Mojave paintbrush Orobanchaceae perennial herb (hemiparasitic) Apr-Jun None None G4 S4 4.3 SB_CalBG/RSABG; USFS_S Great Basin scrub (alluvial), Joshua tree "woodland", Lower montane coniferous forest, Pinyon and juniper woodland 300 2500 985 8205 Yes 1974-01-01
No Photo Available
Castilleja schizotricha split-hair paintbrush Orobanchaceae perennial herb (hemiparasitic) Jul-Aug None None G4 S2S3 1B.3 SB_BerrySB Upper montane coniferous forest Carbonate (often), Decomposed granitic, Serpentine (often) 1500 2300 4920 7545 1984-01-01 Photo of Castilleja schizotricha
© 2014 Scot Loring
Castilleja uliginosa Pitkin Marsh paintbrush Orobanchaceae perennial herb (hemiparasitic) Jun-Jul None CE GXQ SX 1A Grazing, Other Marshes and swamps (freshwater) 240 240 785 785 Yes 1974-01-01 Photo of Castilleja uliginosa
© 2002 John Game
Caulanthus amplexicaulis var. barbarae Santa Barbara jewelflower Brassicaceae annual herb May-Jul None None G4T2 S2 1B.1 USFS_S Erosion/runoff, Grazing Chaparral, Cismontane woodland, Closed-cone coniferous forest Serpentine 470 1220 1540 4005 Yes 1974-01-01 Photo of Caulanthus amplexicaulis var. barbarae
© 2017 John B Moule
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
Caulanthus simulans Payson's jewelflower Brassicaceae annual herb (Feb)Mar-May(Jun) None None G4 S4 4.2 SB_CRES; USFS_S Dam/Inundation, Development, Road/trail construction/maint. Chaparral, Coastal scrub Granitic, Sandy 90 2200 295 7220 Yes 1974-01-01
No Photo Available
Ceanothus confusus Rincon Ridge ceanothus Rhamnaceae perennial evergreen shrub Feb-Jun None None G1 S1 1B.1 BLM_S; SB_SBBG Agriculture, Development, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland, Closed-cone coniferous forest Serpentine (sometimes), Volcanic (sometimes) 75 1065 245 3495 Yes 1980-01-01 Photo of Ceanothus confusus
© 2012 Jake Ruygt
Ceanothus cyaneus Lakeside ceanothus Rhamnaceae perennial evergreen shrub Apr-Jun None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S Development, Erosion/runoff, Non-native plant impacts, Road/trail construction/maint. Chaparral, Closed-cone coniferous forest 235 755 770 2475 1974-01-01
No Photo Available
Ceanothus divergens Calistoga ceanothus Rhamnaceae perennial evergreen shrub Feb-Apr None None G2 S2 1B.2 SB_UCSC Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (rocky, serpentinite, volcanic) 170 950 560 3115 Yes 1974-01-01
No Photo Available
Ceanothus ferrisiae Coyote ceanothus Rhamnaceae perennial evergreen shrub Jan-May FE None G1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Development, Grazing, Improper burning regime Chaparral, Coastal scrub, Valley and foothill grassland Serpentine 120 460 395 1510 Yes 1974-01-01
No Photo Available
Ceanothus foliosus var. vineatus Vine Hill ceanothus Rhamnaceae perennial evergreen shrub Mar-May None None G3T1 S1 1B.1 Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral 45 305 150 1000 Yes 1988-01-01 Photo of Ceanothus foliosus var. vineatus
© 2013 Terry Gosliner
Ceanothus fresnensis Fresno ceanothus Rhamnaceae perennial evergreen shrub (Apr)May-Jul None None G4 S4 4.3 Cismontane woodland (openings), Lower montane coniferous forest 900 2210 2955 7250 Yes 1980-01-01
No Photo Available
Ceanothus gloriosus var. gloriosus Point Reyes ceanothus Rhamnaceae perennial evergreen shrub Mar-May None None G4T4 S4 4.3 SB_CalBG/RSABG Closed-cone coniferous forest, Coastal bluff scrub, Coastal dunes, Coastal scrub Sandy 5 520 15 1705 Yes 1974-01-01
No Photo Available
Ceanothus gloriosus var. porrectus Mt. Vision ceanothus Rhamnaceae perennial evergreen shrub Feb-May None None G4T2 S2 1B.3 SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Vandalism/dumping/litter Closed-cone coniferous forest, Coastal prairie, Coastal scrub, Valley and foothill grassland 25 305 80 1000 Yes 1974-01-01
No Photo Available
Ceanothus hearstiorum Hearsts' ceanothus Rhamnaceae perennial evergreen shrub Mar-Apr None CR G1G2 S1S2 1B.2 BLM_S Development, Foot traffic/trampling, Grazing, Improper burning regime, Other Chaparral (maritime), Coastal prairie, Coastal scrub 75 245 245 805 Yes 1974-01-01
No Photo Available
Ceanothus megacarpus var. insularis island ceanothus Rhamnaceae perennial evergreen shrub Dec-Apr None None G5T4 S4 4.3 SB_CalBG/RSABG Chaparral (sandy) 30 600 100 1970 Yes 1980-01-01
No Photo Available
Cercocarpus betuloides var. blancheae island mountain-mahogany Rosaceae perennial evergreen shrub Feb-May None None G5T4 S4 4.3 SB_CalBG/RSABG Chaparral, Closed-cone coniferous forest 30 600 100 1970 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
Carnegiea gigantea saguaro Cactaceae perennial stem May-Jun None None G5 S1 2B.2 IUCN_LC; SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Non-native animal impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Sonoran desert scrub (rocky) 50 1500 165 4920 1984-01-01
No Photo Available
Chaenactis parishii Parish's chaenactis Asteraceae perennial herb May-Jul None None G3G4 S3 1B.3 BLM_S; SB_CRES Grazing, Other, Road/trail construction/maint. Chaparral (rocky) 1300 2500 4265 8205 1974-01-01
No Photo Available
Chaenactis suffrutescens Shasta chaenactis Asteraceae perennial herb May-Sep None None G2G3 S2S3 1B.3 BLM_S; SB_BerrySB; USFS_S Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest, Upper montane coniferous forest Sandy, Serpentine 750 2800 2460 9185 1974-01-01 Photo of Chaenactis suffrutescens
© 2015 Steve Matson
Chamaebatia australis southern mountain misery Rosaceae perennial evergreen shrub Nov-May None None G4 S4 4.2 SB_CRES Chaparral (gabbroic, metavolcanic) 300 1020 985 3345 1974-01-01 Photo of Chamaebatia australis
© 2007 Andrew Borcher
Callitropsis nootkatensis Alaska cedar Cupressaceae perennial evergreen tree None None G4G5 S3 4.3 SB_UCSC Upper montane coniferous forest 650 2500 2135 8205 1980-01-01 Photo of Callitropsis nootkatensis
© 2021 Scot Loring
Chenopodium simplex large-seeded goosefoot Chenopodiaceae annual herb Jun-Oct None None G5 S4 4.3 Lower montane coniferous forest (openings, disturbed areas) , PJWld (carbonate) 1400 2400 4595 7875 1980-01-01 Photo of Chenopodium simplex
©2016 Keir Morse
Chlorogalum grandiflorum Red Hills soaproot Agavaceae perennial bulbiferous herb (Apr)May-Jun None None G3 S3 1B.2 BLM_S; SB_SBBG Biocides, Development, Disking, Erosion/runoff, 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, Lower montane coniferous forest Gabbroic, Serpentine 245 1690 805 5545 Yes 1974-01-01
No Photo Available
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
Chorizanthe douglasii Douglas' spineflower Polygonaceae annual herb Apr-Jul None None G4 S4 4.3 SB_SBBG Chaparral, Cismontane woodland, Coastal scrub, Lower montane coniferous forest, Valley and foothill grassland Gravelly (sometimes), Sandy (sometimes) 55 1600 180 5250 Yes 1974-01-01
No Photo Available
Chorizanthe howellii Howell's spineflower Polygonaceae annual herb May-Jul FE CT G1 S1 1B.2 Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal dunes, Coastal prairie, Coastal scrub Disturbed areas (often), Sandy 0 45 0 150 Yes 1980-01-01
No Photo Available
Chorizanthe orcuttiana Orcutt's spineflower Polygonaceae annual herb Mar-May FE CE G1 S1 1B.1 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint. Chaparral (maritime), Closed-cone coniferous forest, Coastal scrub Openings, Sandy 3 125 10 410 Yes 1980-01-01
No Photo Available
Chorizanthe parryi var. fernandina San Fernando Valley spineflower Polygonaceae annual herb Apr-Jul None CE G2T1 S1 1B.1 SB_CalBG/RSABG; USFS_S Agriculture, Development, Erosion/runoff, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Coastal scrub (sandy), Valley and foothill grassland 150 1220 490 4005 Yes 1974-01-01
No Photo Available
Chorizanthe pungens var. pungens Monterey spineflower Polygonaceae annual herb Apr-Jun(Jul-Aug) FT None G2T2 S2 1B.2 BLM_S; SB_SBBG; SB_UCBG Agriculture, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Cismontane woodland, Coastal dunes, Coastal scrub, Valley and foothill grassland Sandy 3 450 10 1475 Yes 1980-01-01
No Photo Available
Chorizanthe rectispina straight-awned spineflower Polygonaceae annual herb Apr-Jul None None G2 S2 1B.2 BLM_S; SB_SBBG; USFS_S Agriculture, Biocides, Development, Disking, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland, Coastal scrub 85 1035 280 3395 Yes 1974-01-01 Photo of Chorizanthe rectispina
© 1982 California Native Plant Society
Chorizanthe robusta var. robusta robust spineflower Polygonaceae annual herb Apr-Sep FE None G2T1 S1 1B.1 Development, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Cismontane woodland (openings), Coastal dunes, Coastal scrub Gravelly (sometimes), Sandy (sometimes) 3 300 10 985 Yes 1980-01-01
No Photo Available
Chorizanthe spinosa Mojave spineflower Polygonaceae annual herb Mar-Jul None None G4 S4 4.2 Chenopod scrub, Joshua tree "woodland", Mojavean desert scrub, Playas Alkaline (sometimes) 6 1300 20 4265 Yes 1974-01-01 Photo of Chorizanthe spinosa
© 2011 Benjamin Smith
Chorizanthe valida Sonoma spineflower Polygonaceae annual herb Jun-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Coastal prairie (sandy) 10 305 35 1000 Yes 1974-01-01
No Photo Available
Chorizanthe wheeleri Wheeler's spineflower Polygonaceae annual herb Apr-Jul None None G3G4 S3S4 4.3 Chaparral, Coastal scrub, Valley and foothill grassland Gravelly (sometimes), Rocky (sometimes) 5 600 15 1970 Yes 1974-01-01
No Photo Available
Cirsium andrewsii Franciscan thistle Asteraceae perennial herb Mar-Jul None None G3 S3 1B.2 SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other Broadleafed upland forest, Coastal bluff scrub, Coastal prairie, Coastal scrub Mesic, Serpentine (sometimes) 0 150 0 490 Yes 1974-01-01
No Photo Available
Cirsium fontinale var. campylon Mt. Hamilton thistle Asteraceae perennial herb (Feb)Apr-Oct None None G2T2 S2 1B.2 SB_CalBG/RSABG Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Waterway bank protection/maintenance, Wood cutting or brush clearing Chaparral, Cismontane woodland, Valley and foothill grassland Seeps, Serpentine 100 890 330 2920 Yes 1974-01-01
No Photo Available
Cirsium ciliolatum Ashland thistle Asteraceae perennial herb Jun-Aug None CE G3 S1 2B.1 Biocides, Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland 800 1400 2625 4595 1980-01-01 Photo of Cirsium ciliolatum
© 2021 Scot Loring
Cirsium crassicaule slough thistle Asteraceae annual/perennial herb May-Aug None None G1 S1 1B.1 Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Grazing, Improper burning regime, Non-native plant impacts, Road/trail construction/maint., Surface water diversion, Waterway bank protection/maintenance Chenopod scrub, Marshes and swamps (sloughs), Riparian scrub 3 100 10 330 Yes 1974-01-01
No Photo Available
Cirsium fontinale var. fontinale fountain thistle Asteraceae perennial herb (Apr)May-Oct FE CE G2T1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Hybridization, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral (openings), Cismontane woodland, Meadows and seeps, Valley and foothill grassland Seeps, Serpentine 45 175 150 575 Yes 1974-01-01
No Photo Available
Cirsium fontinale var. obispoense Chorro Creek bog thistle Asteraceae perennial herb Feb-Jul(Aug-Sep) FE CE G2T2 S2 1B.2 SB_CalBG/RSABG; SB_SBBG Agriculture, Biocides, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, Other, Road/trail construction/maint., Surface water diversion Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland Seeps, Serpentine 35 385 115 1265 Yes 1974-01-01
No Photo Available
Cirsium hydrophilum var. hydrophilum Suisun thistle Asteraceae perennial herb Jun-Sep FE None G2T1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Feral pigs, Foot traffic/trampling, Grazing, Hybridization, Improper burning regime, Non-native animal impacts, Non-native plant impacts Marshes and swamps (salt) 0 1 0 5 Yes 1974-01-01
No Photo Available
Cirsium hydrophilum var. vaseyi Mt. Tamalpais thistle Asteraceae perennial herb May-Aug None None G2T1 S1 1B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Chaparral, Meadows and seeps Seeps, Serpentine 240 620 785 2035 Yes 1974-01-01
No Photo Available
Cirsium scariosum var. loncholepis La Graciosa thistle Asteraceae perennial herb May-Aug FE CT G5T1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Coastal dunes, Coastal scrub, Marshes and swamps (brackish), Valley and foothill grassland Mesic, Sandy 4 220 15 720 Yes 1974-01-01
No Photo Available
Cirsium 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
Cirsium rhothophilum surf thistle Asteraceae perennial herb Apr-Jun None CT G1 S1 1B.2 BLM_S; SB_SBBG Development, Feral pigs, Foot traffic/trampling, Grazing, Insufficient population/stand size, Military operations, Mining, Non-native plant impacts, ORV activity, Other Coastal bluff scrub, Coastal dunes 3 60 10 195 Yes 1974-01-01
No Photo Available
Clarkia amoena ssp. whitneyi Whitney's farewell-to-spring Onagraceae annual herb Jun-Aug None None G5T1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Agriculture, Development, Grazing Coastal bluff scrub, Coastal scrub 10 100 35 330 Yes 1980-01-01
No Photo Available
Clarkia australis Small's southern clarkia Onagraceae annual herb May-Aug None None G2 S2 1B.2 BLM_S; USFS_S Biocides, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Other, Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland, Lower montane coniferous forest 800 2075 2625 6810 Yes 1980-01-01
No Photo Available
Clarkia biloba ssp. australis Mariposa clarkia Onagraceae annual herb Apr-Jul None None G4G5T3 S3 1B.2 SB_CalBG/RSABG; SB_SBBG; USFS_S Altered flood/tidal/hydrologic regime, Biocides, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland Serpentine 300 1460 985 4790 Yes 1980-01-01
No Photo Available
Clarkia borealis ssp. arida Shasta clarkia Onagraceae annual herb Jun-Aug None None G4T2 S2 1B.1 BLM_S; SB_UCBG Road/trail construction/maint. Cismontane woodland, Lower montane coniferous forest (openings) 490 595 1610 1950 Yes 1980-01-01
No Photo Available
Clarkia virgata Sierra clarkia Onagraceae annual herb May-Aug None None G3 S3 4.3 SB_CalBG/RSABG Cismontane woodland, Lower montane coniferous forest 400 1680 1310 5510 Yes 1974-01-01
No Photo Available
Claytonia peirsonii ssp. peirsonii Peirson's spring beauty Montiaceae perennial herb (Mar)May-Jun None None G2G3T2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Other, Recreational use (non-ORV), Road/trail construction/maint. Subalpine coniferous forest, Upper montane coniferous forest Granitic, Metamorphic, Scree, Talus 1510 2745 4955 9005 Yes 1974-01-01
No Photo Available
Claytonia megarhiza fell-fields claytonia Montiaceae perennial herb Jul-Sep None None G5 S2 2B.3 Erosion/runoff, Foot traffic/trampling, Grazing, Recreational use (non-ORV) Alpine boulder and rock field, Subalpine coniferous forest (gravelly, rocky) 2600 3532 8530 11590 1980-01-01
No Photo Available
Claytonia palustris marsh claytonia Montiaceae perennial herb May-Oct None None G4 S4 4.3 Marshes and swamps, Meadows and seeps (mesic), Upper montane coniferous forest 1000 2500 3280 8205 Yes 1988-01-01 Photo of Claytonia palustris
©2006 Dean Wm. Taylor, Ph.D.
Cochlearia groenlandica Greenland cochlearia Brassicaceae annual herb May-Jul None None G4 S1 2B.3 Coastal bluff scrub (basaltic sea stacks) 0 50 0 165 1984-01-01
No Photo Available
Collinsia multicolor San Francisco collinsia Plantaginaceae annual herb (Feb)Mar-May None None G2 S2 1B.2 SB_CalBG/RSABG; SB_UCSC Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Closed-cone coniferous forest, Coastal scrub Serpentine (sometimes) 30 275 100 900 Yes 1974-01-01
No Photo Available
Cordylanthus eremicus ssp. eremicus desert bird's-beak Orobanchaceae annual herb (hemiparasitic) Jul-Oct None None G3T3 S3 4.3 SB_CalBG/RSABG Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland 1000 3000 3280 9845 Yes 1980-01-01
No Photo Available
Cordylanthus eremicus ssp. kernensis Kern Plateau bird's-beak Orobanchaceae annual herb (hemiparasitic) (May)Jul-Sep None None G3T2 S2 1B.3 BLM_S; SB_CalBG/RSABG; USFS_S Foot traffic/trampling, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Great Basin scrub, Joshua tree "woodland", Pinyon and juniper woodland, Upper montane coniferous forest 1675 3000 5495 9845 Yes 1988-01-01
No Photo Available
Chloropyron palmatum palmate-bracted bird's-beak Orobanchaceae annual herb (hemiparasitic) May-Oct FE CE G1 S1 1B.1 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Chenopod scrub, Valley and foothill grassland Alkaline 5 155 15 510 Yes 1974-01-01
No Photo Available
Cordylanthus parviflorus small-flowered bird's-beak Orobanchaceae annual herb (hemiparasitic) Aug-Oct None None G4 S2 2B.3 SB_CalBG/RSABG Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland 700 2200 2295 7220 1974-01-01
No Photo Available
Cordylanthus rigidus ssp. littoralis seaside bird's-beak Orobanchaceae annual herb (hemiparasitic) Apr-Oct None CE G5T2 S2 1B.1 BLM_S; SB_CalBG/RSABG; SB_SBBG Development, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Chaparral (maritime), Cismontane woodland, Closed-cone coniferous forest, Coastal dunes, Coastal scrub Disturbed areas (often), Sandy 0 515 0 1690 Yes 1980-01-01
No Photo Available
Chloropyron tecopense Tecopa bird's-beak Orobanchaceae annual herb (hemiparasitic) Jul-Oct None None G2 S1 1B.2 BLM_S; SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Groundwater pumping, Mining, Non-native plant impacts, ORV activity, Other, Vandalism/dumping/litter, Waterway bank protection/maintenance Meadows and seeps, Mojavean desert scrub Alkaline, Mesic 60 900 195 2955 1974-01-01
No Photo Available
Cordylanthus tenuis ssp. barbatus Fresno County bird's-beak Orobanchaceae annual herb (hemiparasitic) Jul-Aug None None G4G5T3 S3 4.3 Lower montane coniferous forest 1300 2000 4265 6560 Yes 1988-01-01
No Photo Available
Cordylanthus tenuis ssp. brunneus serpentine bird's-beak Orobanchaceae annual herb (hemiparasitic) Jul-Aug None None G4G5T3 S3 4.3 Chaparral, Cismontane woodland, Closed-cone coniferous forest Serpentine (usually) 305 915 1000 3000 Yes 1988-01-01
No Photo Available
Cordylanthus tenuis ssp. capillaris Pennell's bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Sep FE CR G4G5T1 S1 1B.2 SB_CalBG/RSABG Development, Erosion/runoff, Grazing, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Closed-cone coniferous forest Serpentine 45 305 150 1000 Yes 1980-01-01
No Photo Available
Cordylanthus tenuis ssp. pallescens pallid bird's-beak Orobanchaceae annual herb (hemiparasitic) Jul-Sep None None G4G5T1 S1 1B.2 SB_CalBG/RSABG; SB_UCSC; USFS_S Biocides, Development, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Lower montane coniferous forest (gravelly, volcanic alluvium) 695 1645 2280 5395 Yes 1980-01-01 Photo of Cordylanthus tenuis ssp. pallescens
©2018 Sierra Pacific Industries
Corethrogyne filaginifolia var. incana San Diego sand aster Asteraceae perennial herb Jun-Sep None None G4T1Q S1 1B.1 Development, Road/trail construction/maint. Chaparral, Coastal bluff scrub, Coastal scrub 3 115 10 375 1980-01-01
No Photo Available
Corethrogyne filaginifolia var. linifolia Del Mar Mesa sand aster Asteraceae perennial herb May-Sep None None G4T1Q S1 1B.1 SB_CRES Development, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral (maritime, openings), Coastal bluff scrub, Coastal scrub Sandy 5 150 15 490 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
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
Croton wigginsii Wiggins' croton Euphorbiaceae perennial shrub Mar-May None CR G2G3 S2 2B.2 BLM_S; SB_CalBG/RSABG Development, Non-native plant impacts, ORV activity, Other Desert dunes, Sonoran desert scrub (sandy) 50 100 165 330 1974-01-01
No Photo Available
Cryptantha crinita silky cryptantha Boraginaceae annual herb Apr-May None None G2 S2 1B.2 BLM_S; USFS_S Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Waterway bank protection/maintenance Cismontane woodland, Lower montane coniferous forest, Riparian forest, Riparian woodland, Valley and foothill grassland Gravelly 61 1215 200 3985 Yes 1980-01-01 Photo of Cryptantha crinita
©2009 Sierra Pacific Industries
Cryptantha excavata deep-scarred cryptantha Boraginaceae annual herb Apr-May None None G1 S1 1B.1 BLM_S Cismontane woodland (gravelly, sandy) 100 500 330 1640 Yes 1974-01-01
No Photo Available
Cryptantha ganderi Gander's cryptantha Boraginaceae annual herb Feb-May None None G2G3 S1 1B.1 SB_CalBG/RSABG; SB_UCSC Agriculture, Development, Non-native plant impacts, ORV activity Desert dunes, Sonoran desert scrub (sandy) 160 400 525 1310 1974-01-01
No Photo Available
Cryptantha hooveri Hoover's cryptantha Boraginaceae annual herb Apr-May None None GH SH 1A Agriculture, Development Inland dunes, Valley and foothill grassland (sandy) 9 150 30 490 Yes 1974-01-01
No Photo Available
Cryptantha mariposae Mariposa cryptantha Boraginaceae annual herb Apr-Jun None None G2G3 S2S3 1B.3 BLM_S Mining Chaparral (rocky, serpentinite) 200 650 655 2135 Yes 1974-01-01
No Photo Available
Cryptantha rattanii Rattan's cryptantha Boraginaceae annual herb Apr-Jul None None G4 S4 4.3 Cismontane woodland, Riparian woodland, Valley and foothill grassland 245 915 805 3000 Yes 1974-01-01
No Photo Available
Cryptantha scoparia gray cryptantha Boraginaceae annual herb Jun-Jul None None G4? S4 4.3 Chenopod scrub, Great Basin scrub, Pinyon and juniper woodland 1890 2745 6200 9005 1974-01-01
No Photo Available
Cryptantha traskiae Trask's cryptantha Boraginaceae annual herb Mar-Jun None None G2 S2 1B.1 SB_CalBG/RSABG Non-native plant impacts Coastal bluff scrub, Coastal dunes, Coastal scrub 15 400 50 1310 Yes 1974-01-01
No Photo Available
Cymopterus deserticola desert cymopterus Apiaceae perennial herb Mar-May None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing, Military operations, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Joshua tree "woodland", Mojavean desert scrub Sandy 630 1500 2065 4920 Yes 1974-01-01
No Photo Available
Cymopterus gilmanii Gilman's cymopterus Apiaceae perennial herb Apr-May None None G3 S2 2B.3 SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Over-collecting/poaching, Road/trail construction/maint. Mojavean desert scrub (often carbonate) 915 2000 3000 6560 1974-01-01
No Photo Available
Cymopterus ripleyi var. saniculoides sanicle cymopterus Apiaceae perennial herb Apr-Jun None None G3G4T3Q S1 1B.2 BLM_S; SB_CalBG/RSABG Foot traffic/trampling, Grazing, Mining, ORV activity, Road/trail construction/maint. Joshua tree "woodland", Mojavean desert scrub Carbonate, Gravelly, Sandy 1000 1660 3280 5445 1980-01-01
No Photo Available
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
Cypripedium montanum mountain lady's-slipper Orchidaceae perennial rhizomatous herb Mar-Aug None None G4G5 S4 4.2 BLM_S; IUCN_VU; USFS_S Broadleafed upland forest, Cismontane woodland, Lower montane coniferous forest, North Coast coniferous forest 185 2225 605 7300 1980-01-01 Photo of Cypripedium montanum
©2021 Scot Loring
Collinsia antonina San Antonio collinsia Plantaginaceae annual herb Mar-May None None G2 S2 1B.2 Foot traffic/trampling, Grazing, Other Chaparral, Cismontane woodland 280 365 920 1200 Yes 1974-01-01
No Photo Available
Cuniculotinus gramineus Panamint rock-goldenrod Asteraceae perennial herb Jun-Aug None None G3G4 S3 2B.3 Pinyon and juniper woodland, Subalpine coniferous forest Carbonate, Rocky 2040 2900 6695 9515 1994-01-01
No Photo Available
Constancea nevinii Nevin's woolly sunflower Asteraceae perennial deciduous shrub Apr-Aug None None G3 S3 1B.3 SB_CalBG/RSABG; SB_CRES Development Coastal bluff scrub, Coastal scrub 5 410 15 1345 Yes 1974-01-01
No Photo Available
Centromadia pungens ssp. laevis smooth tarplant Asteraceae annual herb Apr-Sep None None G3G4T2 S2 1B.1 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Channelization, Dam/Inundation, Development, Disking, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chenopod scrub, Meadows and seeps, Playas, Riparian woodland, Valley and foothill grassland Alkaline 0 640 0 2100 Yes 1994-01-01
No Photo Available
Cylindropuntia munzii Munz's cholla Cactaceae perennial stem May None None G3 S1 1B.3 BLM_S; IUCN_LC; SB_CalBG/RSABG Military operations Sonoran desert scrub (gravelly, sandy) 150 600 490 1970 1980-01-01
No Photo Available
Cylindropuntia californica var. californica snake cholla Cactaceae perennial stem Apr-May None None G3T2 S1 1B.1 BLM_S; SB_CRES Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Coastal scrub 30 150 100 490 1974-01-01
No Photo Available
Castilleja campestris var. succulenta succulent owl's-clover Orobanchaceae annual herb (hemiparasitic) (Mar)Apr-May FT CE G4?T2T3 S2S3 1B.2 Agriculture, Dam/Inundation, Development, Disking, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Vernal pools (often acidic) 50 750 165 2460 Yes 1984-01-01
No Photo Available
Castilleja ambigua var. humboldtiensis Humboldt Bay owl's-clover Orobanchaceae annual herb (hemiparasitic) Apr-Aug None None G4T2 S2 1B.2 BLM_S; SB_UCBG Agriculture, Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Waterway bank protection/maintenance Marshes and swamps (coastal salt) 0 3 0 10 Yes 1974-01-01 Photo of Castilleja ambigua var. humboldtiensis
©2017 Steve Matson
Castilleja lasiorhyncha San Bernardino Mountains owl's-clover Orobanchaceae annual herb (hemiparasitic) May-Aug None None G2? S2? 1B.2 SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Meadows and seeps, Pebble (Pavement) plain, Riparian woodland, Upper montane coniferous forest Mesic 1300 2390 4265 7840 Yes 1980-01-01
No Photo Available
Cherleria biflora alpine sandwort Caryophyllaceae perennial herb Jul-Aug None None G5 S4 4.3 Alpine boulder and rock field, Alpine dwarf scrub, Subalpine coniferous forest Granitic, Metamorphic 3150 3700 10335 12140 1994-01-01 Photo of Cherleria biflora
© 2013 Ron Wolf
California macrophylla CBR 2001-01-01
No Photo Available
Carlquistia muirii Muir's tarplant Asteraceae perennial rhizomatous herb Jul-Aug(Oct) None None G2 S2 1B.3 BLM_S; SB_CalBG/RSABG; USFS_S Development, Erosion/runoff, Foot traffic/trampling, Logging, Road/trail construction/maint. Chaparral (montane), Lower montane coniferous forest, Upper montane coniferous forest Granitic 755 2500 2475 8205 Yes 1980-01-01
No Photo Available
Cascadia nuttallii Nuttall's saxifrage Saxifragaceae perennial rhizomatous herb May None None G4? S1 2B.1 North Coast coniferous forest (mesic, rocky) 40 75 130 245 1988-01-01 Photo of Cascadia nuttallii
© 2021 Scot Loring
Calochortus clavatus var. gracilis slender mariposa-lily Liliaceae perennial bulbiferous herb Mar-Jun(Nov) None None G4T2T3 S2S3 1B.2 SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Coastal scrub, Valley and foothill grassland 320 1000 1050 3280 Yes 1994-01-01
No Photo Available
Calochortus palmeri var. palmeri Palmer's mariposa-lily Liliaceae perennial bulbiferous herb Apr-Jul None None G3T2 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_SBBG; USFS_S Altered flood/tidal/hydrologic regime, Degraded water quality, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Meadows and seeps Mesic 710 2390 2330 7840 Yes 1994-01-01
No Photo Available
Calochortus panamintensis Panamint mariposa lily Liliaceae perennial bulbiferous herb Jun-Jul None None G3 S3 4.2 SB_CalBG/RSABG Pinyon and juniper woodland 2040 3200 6695 10500 1994-01-01 Photo of Calochortus panamintensis
© 2011 Aaron E. Sims
Calochortus plummerae Plummer's mariposa-lily Liliaceae perennial bulbiferous herb May-Jul None None G4 S4 4.2 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Cismontane woodland, Coastal scrub, Lower montane coniferous forest, Valley and foothill grassland Granitic, Rocky 100 1700 330 5580 Yes 1994-01-01
No Photo Available
Calochortus weedii var. intermedius intermediate mariposa-lily Liliaceae perennial bulbiferous herb May-Jul None None G3G4T3 S3 1B.2 SB_CalBG/RSABG; USFS_S Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, 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 Rocky 105 855 345 2805 Yes 1994-01-01
No Photo Available
Calochortus fimbriatus late-flowered mariposa-lily Liliaceae perennial bulbiferous herb Jun-Aug None None G3 S3 1B.3 SB_SBBG; USFS_S Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Riparian woodland Serpentine (sometimes) 275 1905 900 6250 Yes 1994-01-01
No Photo Available
Calycadenia villosa dwarf calycadenia Asteraceae annual herb May-Oct None None G3 S3 1B.1 SB_SBBG; USFS_S Agriculture, Dam/Inundation, 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, Meadows and seeps, Valley and foothill grassland Rocky 240 1350 785 4430 Yes 1994-01-01
No Photo Available
Calystegia sepium ssp. binghamiae Santa Barbara morning-glory Convolvulaceae perennial rhizomatous herb Aug None None G5TXQ SX 1A Marshes and swamps (coastal) 5 5 15 15 Yes 1994-01-01
No Photo Available
Camissoniopsis lewisii Lewis' evening-primrose Onagraceae annual herb Mar-May(Jun) None None G4 S4 3 Cismontane woodland, Coastal bluff scrub, Coastal dunes, Coastal scrub, Valley and foothill grassland Clay (sometimes), Sandy (sometimes) 0 300 0 985 1994-01-01
No Photo Available
Canbya candida white pygmy-poppy Papaveraceae annual herb Mar-Jun None None G3G4 S3S4 4.2 SB_CalBG/RSABG; USFS_S Agriculture, Development, ORV activity, Road/trail construction/maint. Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland Granitic, Gravelly, Sandy 600 1460 1970 4790 Yes 1974-01-01
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 hystericina porcupine sedge Cyperaceae perennial rhizomatous herb May-Jun None None G5 S2 2B.1 Road/trail construction/maint. Marshes and swamps (streambanks) 610 2400 2000 7875 1994-01-01 Photo of Carex hystericina
©2014 Robert E. Preston, Ph.D.
Carex incurviformis Mt. Dana sedge Cyperaceae perennial rhizomatous herb Jul-Aug None None G4G5 S4 4.3 Alpine boulder and rock field 3700 4060 12140 13320 1994-01-01
No Photo Available
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
Carex limosa mud sedge Cyperaceae perennial rhizomatous herb Jun-Aug None None G5 S3 2B.2 IUCN_LC Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV) Bogs and fens, Lower montane coniferous forest, Marshes and swamps, Meadows and seeps, Upper montane coniferous forest 1200 2700 3935 8860 1994-01-01 Photo of Carex limosa
Steve Matson 2009
Carex scoparia var. scoparia pointed broom sedge Cyperaceae perennial herb Jul-Sep None None G5T5 S1 2B.2 Marshes and swamps (freshwater) 1205 1280 3955 4200 1994-01-01
No Photo Available
Carex vulpinoidea CBR 1994-01-01
No Photo Available
Carlowrightia arizonica Arizona carlowrightia Acanthaceae perennial deciduous shrub Mar-May None None G4G5 S2 2B.2 Sonoran desert scrub (granitic, alluvium, sandy) 285 430 935 1410 1994-01-01
No Photo Available
Ceanothus ophiochilus Vail Lake ceanothus Rhamnaceae perennial evergreen shrub Feb-Mar FT CE G1 S1 1B.1 SB_CalBG/RSABG Development, Hybridization, Improper burning regime, Non-native plant impacts, Road/trail construction/maint. Chaparral (gabbroic, pyroxenite-rich outcrops) 580 1065 1905 3495 Yes 1994-01-01
No Photo Available
Chaenactis carphoclinia var. peirsonii Peirson's pincushion Asteraceae annual herb Mar-Apr None None G5T2 S2 1B.3 BLM_S; SB_CalBG/RSABG ORV activity Sonoran desert scrub (sandy) 3 500 10 1640 Yes 1994-01-01
No Photo Available
Chaenactis douglasii var. alpina alpine dusty maidens Asteraceae perennial herb Jul-Sep None None G5T5 S2 2B.3 Foot traffic/trampling, Other, Over-collecting/poaching, Recreational use (non-ORV), Vandalism/dumping/litter Alpine boulder and rock field (granitic) 2865 3400 9400 11155 1994-01-01 Photo of Chaenactis douglasii var. alpina
© 2008 Steve Matson
Chlorogalum pomeridianum var. minus dwarf soaproot Agavaceae perennial bulbiferous herb May-Aug None None G5T3 S3 1B.2 BLM_S; SB_SBBG; USFS_S Erosion/runoff, Feral pigs, Grazing, Improper burning regime, Military operations, Road/trail construction/maint. Chaparral (serpentinite) 305 1000 1000 3280 Yes 1994-01-01 Photo of Chlorogalum pomeridianum var. minus
© 1997 Dean Wm Taylor
Chorizanthe biloba var. immemora Hernandez spineflower Polygonaceae annual herb May-Aug(Sep) None None G3T1T2 S1S2 1B.2 BLM_S Chaparral, Cismontane woodland Clay (sometimes), Gravelly (often), Serpentine (usually) 425 1115 1395 3660 Yes 1994-01-01
No Photo Available
Chorizanthe cuspidata var. cuspidata San Francisco Bay spineflower Polygonaceae annual herb Apr-Jul(Aug) None None G2T1 S1 1B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Coastal bluff scrub, Coastal dunes, Coastal prairie, Coastal scrub Sandy 3 215 10 705 Yes 1994-01-01
No Photo Available
Chorizanthe cuspidata var. villosa woolly-headed spineflower Polygonaceae annual herb May-Jul(Aug) None None G2T2 S2 1B.2 Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Wood cutting or brush clearing Coastal dunes, Coastal prairie, Coastal scrub Sandy 3 60 10 195 Yes 1994-01-01
No Photo Available
Chorizanthe leptotheca Peninsular spineflower Polygonaceae annual herb May-Aug None None G3 S3 4.2 Chaparral, Coastal scrub, Lower montane coniferous forest Granitic 300 1900 985 6235 1994-01-01
No Photo Available
Chorizanthe palmeri Palmer's spineflower Polygonaceae annual herb Apr-Aug None None G4 S4 4.2 SB_SBBG Chaparral, Cismontane woodland, Valley and foothill grassland Rocky, Serpentine 55 945 180 3100 Yes 1994-01-01
No Photo Available
Chorizanthe parryi var. parryi Parry's spineflower Polygonaceae annual herb Apr-Jun None None G3T2 S2 1B.1 BLM_S; SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Grazing, Improper burning regime, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland Openings, Rocky (sometimes), Sandy (sometimes) 275 1220 900 4005 Yes 1994-01-01 Photo of Chorizanthe parryi var. parryi
© 2012 Keir Morse
Chorizanthe polygonoides var. longispina long-spined spineflower Polygonaceae annual herb Apr-Jul None None G5T3 S3 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Coastal scrub, Meadows and seeps, Valley and foothill grassland, Vernal pools Clay (often) 30 1530 100 5020 1994-01-01
No Photo Available
Chorizanthe pungens var. hartwegiana Ben Lomond spineflower Polygonaceae annual herb Apr-Jul FE None G2T1 S1 1B.1 SB_UCSC Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest (maritime ponderosa pine sandhills) 90 610 295 2000 Yes 1994-01-01
No Photo Available
Chorizanthe robusta var. hartwegii Scotts Valley spineflower Polygonaceae annual herb Apr-Jul FE None G2T1 S1 1B.1 SB_UCSC Development, Non-native plant impacts, Other, Road/trail construction/maint. Meadows and seeps (sandy), Valley and foothill grassland (mudstone, Purisima outcrops) 230 245 755 805 Yes 1994-01-01
No Photo Available
Chorizanthe xanti var. leucotheca white-bracted spineflower Polygonaceae annual herb Apr-Jun None None G4T3 S3 1B.2 BLM_S; SB_CalBG/RSABG; SB_USDA; USFS_S Development, Grazing, Non-native plant impacts, ORV activity, Road/trail construction/maint. Coastal scrub (alluvial fans), Mojavean desert scrub, Pinyon and juniper woodland Gravelly (sometimes), Sandy (sometimes) 300 1200 985 3935 Yes 1994-01-01
No Photo Available
Clarkia concinna ssp. automixa Santa Clara red ribbons Onagraceae annual herb (Apr)May-Jun(Jul) None None G5?T3 S3 4.3 SB_CalBG/RSABG Chaparral, Cismontane woodland 90 1500 295 4920 Yes 1994-01-01
No Photo Available
Clarkia concinna ssp. raichei Raiche's red ribbons Onagraceae annual herb Apr-May None None G5?T1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Grazing, Road/trail construction/maint. Coastal bluff scrub 0 100 0 330 Yes 1994-01-01 Photo of Clarkia concinna ssp. raichei
© 2015 Aaron Schusteff
Clarkia gracilis ssp. albicaulis white-stemmed clarkia Onagraceae annual herb May-Jul None None G5T3 S3 1B.2 BLM_S; SB_UCBG; USFS_S Biocides, Erosion/runoff, Logging, Mining, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland Serpentine (sometimes) 245 1085 805 3560 Yes 1994-01-01
No Photo Available
Clarkia xantiana ssp. parviflora Kern Canyon clarkia Onagraceae annual herb May-Jun None None G4T3? S3? 4.2 SB_CalBG/RSABG Chaparral, Cismontane woodland, Great Basin scrub, Valley and foothill grassland Roadsides (sometimes), Rocky (sometimes), Sandy (often), Slopes 700 3620 2295 11875 Yes 1994-01-01
No Photo Available
Claytonia umbellata Great Basin claytonia Montiaceae perennial herb May-Aug None None G4 S1 2B.1 ORV activity, Road/trail construction/maint. Subalpine coniferous forest (talus) 1705 3500 5595 11485 1994-01-01
No Photo Available
Collinsia corymbosa round-headed collinsia Plantaginaceae annual herb Apr-Jun None None G1 S1 1B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Non-native plant impacts, ORV activity Coastal dunes 0 20 0 65 Yes 1994-01-01 Photo of Collinsia corymbosa
©2007 Steve Matson
Condalia globosa var. pubescens spiny abrojo Rhamnaceae perennial deciduous shrub Mar-May(Nov) None None G5T4 S3 4.2 Sonoran desert scrub 85 1000 280 3280 1994-01-01
No Photo Available
Convolvulus simulans small-flowered morning-glory Convolvulaceae annual herb Mar-Jul None None G4 S4 4.2 SB_CRES Chaparral (openings), Coastal scrub, Valley and foothill grassland Clay, Seeps, Serpentine 30 740 100 2430 1994-01-01
No Photo Available
Corallorhiza trifida northern coralroot Orchidaceae perennial rhizomatous herb (achlorophyllous) Jun-Jul None None G5 S1 2B.1 Improper burning regime, Logging, Recreational use (non-ORV) Lower montane coniferous forest, Meadows and seeps (edges) Mesic 1370 1745 4495 5725 1994-01-01 Photo of Corallorhiza trifida
© 2021 Scot Loring
Crepis runcinata fiddleleaf hawksbeard Asteraceae perennial herb May-Aug None None G5 S3 2B.2 Grazing, ORV activity, Road/trail construction/maint. Mojavean desert scrub, Pinyon and juniper woodland Alkaline, Mesic 1250 1975 4100 6480 2015-10-26
No Photo Available
Cryptantha dissita serpentine cryptantha Boraginaceae annual herb Apr-Jun None None G3 S3 1B.2 BLM_S Agriculture, Development, Erosion/runoff, Mining, Other Chaparral (serpentinite) 395 580 1295 1905 Yes 1994-01-01 Photo of Cryptantha dissita
©2019 Terry Gosliner
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
Centromadia parryi ssp. congdonii Congdon's tarplant Asteraceae annual herb May-Oct(Nov) None None G3T2 S2 1B.1 BLM_S; SB_CalBG/RSABG 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
Cylindropuntia wolfii Wolf's cholla Cactaceae perennial stem Mar-May None None G4 S3 4.3 IUCN_LC; SB_CRES Sonoran desert scrub 100 1200 330 3935 1994-01-01
No Photo Available
Carex tiogana Tioga Pass sedge Cyperaceae perennial herb Jul-Aug None None G1Q S1 1B.3 USFS_S Foot traffic/trampling Meadows and seeps (lake margins, mesic) 3100 3300 10170 10825 1994-01-01
No Photo Available
Carex geyeri Geyer's sedge Cyperaceae perennial rhizomatous herb May-Aug None None G5 S4 4.2 Great Basin scrub, Lower montane coniferous forest 1155 2195 3790 7200 1980-01-01 Photo of Carex geyeri
© 2011 Ryan Batten
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
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 arenaria sand evening-primrose Onagraceae annual/perennial herb Nov-May None None G4? S2S3 2B.2 Agriculture, Erosion/runoff Sonoran desert scrub (sandy, rocky) -70 915 -230 3000 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
Camissonia sierrae ssp. sierrae Yosemite evening-primrose Onagraceae annual herb Apr-Jun None None G3T3 S3 4.3 Cismontane woodland, Lower montane coniferous forest 500 1645 1640 5395 Yes 2001-01-01
No Photo Available
Cardamine bellidifolia var. pachyphylla fleshy toothwort Brassicaceae perennial herb Jun-Aug None None G5T4 S3 4.3 Alpine boulder and rock field, Subalpine coniferous forest, Upper montane coniferous forest Rocky, Scree, Talus 1900 2835 6235 9300 2001-01-01 Photo of Cardamine bellidifolia var. pachyphylla
©2014 Chris Wagner
Carex arcta northern clustered sedge Cyperaceae perennial herb Jun-Sep None None G5 S1 2B.2 IUCN_LC Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Grazing, Logging, Other, Road/trail construction/maint. Bogs and fens, North Coast coniferous forest (mesic) 60 1400 195 4595 2001-01-01 Photo of Carex arcta
© 2006 Dean Wm. Taylor
Carex atherodes wheat sedge Cyperaceae perennial rhizomatous herb Jun-Aug None None G5 S3 2B.2 IUCN_LC Grazing, Other, Road/trail construction/maint., Waterway bank protection/maintenance Marshes and swamps, Meadows and seeps, Pinyon and juniper woodland Mesic 1300 1540 4265 5055 2001-01-01 Photo of Carex atherodes
©2015 Dean Wm. Taylor
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.
Carex inops ssp. inops CBR
No Photo Available
Carex lyngbyei Lyngbye's sedge Cyperaceae perennial rhizomatous herb Apr-Aug None None G5 S3 2B.2 IUCN_LC Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other Marshes and swamps (brackish, freshwater) 0 10 0 35 2001-01-01 Photo of Carex lyngbyei
©2017 Steve Matson
Carex occidentalis western sedge Cyperaceae perennial rhizomatous herb Jun-Aug None None G4 S3 2B.3 SB_CalBG/RSABG Lower montane coniferous forest, Meadows and seeps 1645 3135 5395 10285 2001-01-01
No Photo Available
Carex saliniformis deceiving sedge Cyperaceae perennial rhizomatous herb (May)Jun(Jul) None None G2 S2 1B.2 Development, Grazing, Other Coastal prairie, Coastal scrub, Marshes and swamps (coastal salt), Meadows and seeps Mesic 3 230 10 755 Yes 2001-01-01 Photo of Carex saliniformis
©2003 Steve Matson
Carex scirpoidea ssp. pseudoscirpoidea western single-spiked sedge Cyperaceae perennial rhizomatous herb Jul-Sep None None G5T5 S2 2B.2 ORV activity Alpine boulder and rock field, Meadows and seeps, Subalpine coniferous forest (rocky) Carbonate (often), Mesic 2990 3700 9810 12140 2001-01-01
No Photo Available
Carex serpenticola serpentine sedge Cyperaceae perennial rhizomatous herb Mar-May None None G4 S3 2B.3 Meadows and seeps (mesic, serpentinite) 60 1200 195 3935 2001-01-01 Photo of Carex serpenticola
©2005 Norman Jensen
Carex tahoensis Tahoe sedge Cyperaceae perennial rhizomatous herb Jul-Aug None None G5 S4 4.3 Alpine boulder and rock field, Subalpine coniferous forest (rocky) 2835 3810 9300 12500 2001-01-01
No Photo Available
Carex vallicola western valley sedge Cyperaceae perennial rhizomatous herb Jul-Aug None None G4G5 S2 2B.3 Grazing Great Basin scrub, Meadows and seeps Mesic 1525 2805 5005 9205 2001-01-01
No Photo Available
Carex viridula ssp. viridula green yellow sedge Cyperaceae perennial herb (Jun)Jul-Sep(Nov) None None G5T5 S2 2B.3 Altered flood/tidal/hydrologic regime, Non-native plant impacts Bogs and fens, Marshes and swamps (freshwater), North Coast coniferous forest (mesic) 0 1600 0 5250 2001-01-01 Photo of Carex viridula ssp. viridula
© 2015 Dana York
Castilleja litoralis Oregon coast paintbrush Orobanchaceae perennial herb (hemiparasitic) Jun None None G3 S3 2B.2 Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal bluff scrub, Coastal dunes, Coastal scrub Sandy 15 100 50 330 2001-01-01 Photo of Castilleja litoralis
©2010 Dana York
Castilleja densiflora var. obispoensis San Luis Obispo owl's-clover Orobanchaceae annual herb (hemiparasitic) Mar-May None None G5T2 S2 1B.2 SB_SBBG Biocides, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Hybridization, Improper burning regime, Military operations, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Meadows and seeps, Valley and foothill grassland Serpentine (sometimes) 10 430 35 1410 Yes 2001-01-01 Photo of Castilleja densiflora var. obispoensis
© 2010 Aaron E. Sims
Castilleja rubicundula var. rubicundula pink creamsacs Orobanchaceae annual herb (hemiparasitic) Apr-Jun None None G5T2 S2 1B.2 BLM_S; SB_UCSC Agriculture, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral (openings), Cismontane woodland, Meadows and seeps, Valley and foothill grassland Serpentine 20 910 65 2985 Yes 2001-01-01 Photo of Castilleja rubicundula var. rubicundula
©2010 Vernon Smith
Caulanthus lemmonii Lemmon's jewelflower Brassicaceae annual herb Feb-May None None G3 S3 1B.2 BLM_S; SB_SBBG; USFS_S Dam/Inundation, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Road/trail construction/maint. Pinyon and juniper woodland, Valley and foothill grassland 80 1580 260 5185 Yes 2001-01-01
No Photo Available
Caulanthus major var. nevadensis slender jewelflower Brassicaceae perennial herb Jun-Sep None None G4T3? S3? 4.3 Pinyon and juniper woodland (often rocky) 1705 2895 5595 9500 2001-01-01
No Photo Available
Ceanothus cuneatus var. fascicularis Lompoc ceanothus Rhamnaceae perennial evergreen shrub Feb-Apr None None G5T4 S4 4.2 SB_CalBG/RSABG; SB_SBBG Chaparral (sandy) 5 400 15 1310 Yes 2001-01-01
No Photo Available
Ceanothus gloriosus var. exaltatus glory brush Rhamnaceae perennial evergreen shrub Mar-Jun(Aug) None None G4T4 S4 4.3 SB_UCSC Chaparral 30 610 100 2000 Yes 2001-01-01 Photo of Ceanothus gloriosus var. exaltatus
©2018 John Doyen
Ceanothus otayensis Otay Mountain ceanothus Rhamnaceae perennial evergreen shrub Jan-Apr None None G1G2 S1 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES Foot traffic/trampling, Improper burning regime, Other, Road/trail construction/maint. Chaparral (gabbroic, metavolcanic) 600 1100 1970 3610 2001-01-01
No Photo Available
Ceanothus pinetorum Kern ceanothus Rhamnaceae perennial evergreen shrub May-Jul None None G3 S3 4.3 Lower montane coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest Granitic, Rocky 1040 2745 3410 9005 Yes 1974-01-01 Photo of Ceanothus pinetorum
©2017 Aaron Schusteff
Chaenactis glabriuscula var. orcuttiana Orcutt's pincushion Asteraceae annual herb Jan-Aug None None G5T1 S1 1B.1 SB_CalBG/RSABG; SB_CRES Development, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Coastal bluff scrub (sandy), Coastal dunes 0 100 0 330 2001-01-01
No Photo Available
Chaetadelpha wheeleri Wheeler's dune-broom Asteraceae perennial rhizomatous herb Apr-Sep None None G4 S2 2B.2 Development, Non-native plant impacts, ORV activity Desert dunes, Great Basin scrub, Mojavean desert scrub Sandy 795 1900 2610 6235 2001-01-01
No Photo Available
Chorizanthe ventricosa potbellied spineflower Polygonaceae annual herb May-Sep None None G3 S3 4.3 Cismontane woodland, Valley and foothill grassland Serpentine 65 1235 215 4050 Yes 2001-01-01
No Photo Available
Chrysothamnus greenei Greene's rabbitbrush Asteraceae perennial deciduous shrub Oct None None G5 S3? 2B.3 Grazing, Non-native plant impacts, Other Chenopod scrub (sandy, rocky) 145 1830 475 6005 2001-01-01
No Photo Available
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
Cirsium praeteriens lost thistle Asteraceae perennial herb Jun-Jul None None GX SX 1A 0 100 0 330 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
Clarkia gracilis ssp. tracyi Tracy's clarkia Onagraceae annual herb Apr-Jul None None G5T3 S3 4.2 SB_CalBG/RSABG Chaparral (openings, serpentinite) 65 650 215 2135 Yes 2001-01-01
No Photo Available
Clarkia mildrediae ssp. lutescens golden-anthered clarkia Onagraceae annual herb Jun-Aug None None G3T3 S3 4.2 Cismontane woodland, Lower montane coniferous forest (openings) Roadsides (often), Rocky (often) 275 1750 900 5740 Yes 2001-01-01
No Photo Available
Cleomella brevipes short-pedicelled cleomella Cleomaceae annual herb May-Oct None None G4 S3 4.2 Marshes and swamps, Meadows and seeps, Playas Alkaline 395 2195 1295 7200 2001-01-01
No Photo Available
Cleomella hillmanii var. hillmanii Hillman's cleomella Cleomaceae annual herb Apr-Jun None None G4G5T4T5 S2 2B.2 Other Chenopod scrub, Great Basin scrub Clay 1220 1220 4005 4005 2001-01-01
No Photo Available
Cordylanthus rigidus ssp. brevibracteatus short-bracted bird's-beak Orobanchaceae annual herb (hemiparasitic) Jul-Aug(Sep-Oct) None None G5T3 S3 4.3 SB_CalBG/RSABG Chaparral, Lower montane coniferous forest, Pinyon and juniper woodland, Upper montane coniferous forest Granitic, Openings 610 2590 2000 8500 Yes 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
Cryptantha incana Tulare cryptantha Boraginaceae annual herb Jun-Aug None None G2 S2 1B.3 SB_CalBG/RSABG; USFS_S Lower montane coniferous forest (gravelly, rocky) 1430 2150 4690 7055 Yes 1974-01-01
No Photo Available
Campylopodiella stenocarpa flagella-like atractylocarpus Dicranaceae moss None None G5 S1? CBR Altered flood/tidal/hydrologic regime, Erosion/runoff, Road/trail construction/maint. Cismontane woodland 100 500 330 1640 2001-01-01
No Photo Available
Carex lenticularis var. limnophila lagoon sedge Cyperaceae perennial herb Jun-Aug None None G5T5 S1 2B.2 Bogs and fens, Marshes and swamps, North Coast coniferous forest Gravelly (often) 0 6 0 20 2005-01-01 Photo of Carex lenticularis var. limnophila
©2003 Steve Matson
Calycadenia micrantha small-flowered calycadenia Asteraceae annual herb Jun-Sep None None G2 S2 1B.2 USFS_S Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, Other, Road/trail construction/maint. Chaparral, Meadows and seeps (volcanic), Valley and foothill grassland Roadsides, Rocky, Scree, Serpentine (sometimes), Talus 5 1500 15 4920 Yes 2005-01-01 Photo of Calycadenia micrantha
©2021 Aaron Arthur
Cakile edentula ssp. californica CBR 2006-01-10
No Photo Available
Calochortus concolor CBR 2006-01-10
No Photo Available
Calochortus venustus var. sanguineus CBR 2006-01-10
No Photo Available
Camissonia boothii ssp. inyoensis CBR 2006-01-10
No Photo Available
Camissonia heterochroma CBR 2006-01-10
No Photo Available
Campanula griffinii CBR 2006-01-10
No Photo Available
Canotia holacantha CBR 2006-01-10
No Photo Available
Carex whitneyi CBR 2006-01-10
No Photo Available
Castilleja arachnoidea ssp. arachnoidea CBR 2006-01-10
No Photo Available
Castilleja arachnoidea ssp. shastensis CBR 2006-01-10
No Photo Available
Castilleja disticha CBR 2006-01-10
No Photo Available
Castilleja franciscana CBR 2006-01-10
No Photo Available
Castilleja lassenensis Lassen paintbrush Orobanchaceae perennial herb Jun-Sep None None G3 S3 1B.3 Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Logging, Other, Recreational use (non-ORV) Meadows and seeps, Subalpine coniferous forest Volcanic 955 3120 3135 10235 Yes 2017-07-18 Photo of Castilleja lassenensis
©2018 Matt C. Berger
Castilleja longispica CBR 2006-01-10
No Photo Available
Castilleja peirsonii CBR 2006-01-10
No Photo Available
Castilleja pilosa ssp. jusselii CBR 2006-01-10
No Photo Available
Castilleja praeterita CBR 2006-01-10
No Photo Available
Castilleja psittacina CBR 2006-01-10
No Photo Available
Caulanthus glaucus CBR 2006-01-10
No Photo Available
Ceanothus arboreus CBR 2006-01-10
No Photo Available
Ceanothus cuneatus var. decumbens CBR 2006-01-10
No Photo Available
Ceanothus impressus var. impressus Santa Barbara ceanothus Rhamnaceae perennial shrub Feb-Apr None None G3T3 S3 1B.2 Development, Improper burning regime, Non-native plant impacts, Other, Road/trail construction/maint. Chaparral Sandy 40 470 130 1540 2006-01-10 Photo of Ceanothus impressus var. impressus
© 2005 Dieter Wilken
Ceanothus jepsonii var. jepsonii CBR 2006-01-10
No Photo Available
Ceanothus papillosus var. roweanus CBR 2006-01-10
No Photo Available
Ceanothus prostratus var. laxus CBR 2006-01-10
No Photo Available
Celtis reticulata CBR 2006-01-10
No Photo Available
Cerastium beeringianum var. capillare CBR 2006-01-10
No Photo Available
Cercocarpus minutiflorus CBR 2006-01-10
No Photo Available
Chamaecyparis lawsoniana CBR 2006-01-10
No Photo Available
Cheilanthes clokeyi CBR 2006-01-10
No Photo Available
Chenopodium nevadense CBR 2006-01-10
No Photo Available
Chorizanthe angustifolia CBR 2006-01-10
No Photo Available
Chrysothamnus viscidiflorus ssp. axillaris CBR 2006-01-10
No Photo Available
Chrysothamnus parryi ssp. bolanderi CBR 2006-01-10
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
Cirsium nidulum CBR 2006-01-10
No Photo Available
Clarkia rubicunda ssp. blasdalei CBR 2006-01-10
No Photo Available
Clarkia rubicunda ssp. rubicunda CBR 2006-01-10
No Photo Available
Claytonia saxosa CBR 2006-01-10
No Photo Available
Claytonia spathulata var. rosulata CBR 2006-01-10
No Photo Available
Cneoridium dumosum CBR 2006-01-10
No Photo Available
Collinsia bartsiifolia var. bartsiifolia CBR 2006-01-10
No Photo Available
Collinsia concolor CBR 2006-01-10
No Photo Available
Collinsia greenei CBR 2006-01-10
No Photo Available
Collinsia linearis CBR 2006-01-10
No Photo Available
Collinsia parryi CBR 2006-01-10
No Photo Available
Conioselinum chinense CBR 2006-01-10
No Photo Available
Cordylanthus ferrisianus CBR 2006-01-10
No Photo Available
Cordylanthus helleri CBR 2006-01-10
No Photo Available
Cordylanthus nevinii CBR 2006-01-10
No Photo Available
Cordylanthus pringlei CBR 2006-01-10
No Photo Available
Coreopsis gigantea CBR 2006-01-10
No Photo Available
Crepis nana ssp. ramosa CBR 2006-01-10
No Photo Available
Crossosoma bigelovii CBR 2006-01-10
No Photo Available
Cryptantha hispidula CBR 2006-01-10
No Photo Available
Cryptantha nubigena CBR 2006-01-10
No Photo Available
Cymopterus cinerarius CBR 2006-01-10
No Photo Available
Chamaesyce parishii CBR 2006-01-10
No Photo Available
Chamaesyce pediculifera CBR 2006-01-10
No Photo Available
Centaurium namophilum var. nevadense CBR 2006-01-10
No Photo Available
Chorizanthe staticoides var. compacta CBR 2006-01-10
No Photo Available
Clarkia tembloriensis ssp. tembloriensis CBR 2006-01-10
No Photo Available
Castilleja payneae CBR 2006-01-10
No Photo Available
Cicuta bolanderi CBR 2006-01-10
No Photo Available
Carex jepsonii CBR 2006-01-10
No Photo Available
Calochortus nudus var. shastensis CBR 2006-01-10
No Photo Available
Chorizanthe staticoides ssp. chrysacantha CBR 2006-01-10
No Photo Available
Centaurium exaltatum CBR 2006-01-10
No Photo Available
Caulanthus stenocarpus CBR 2006-01-10
No Photo Available
Cuscuta howelliana CBR 2006-01-10
No Photo Available
Calycadenia fremontii CBR 2006-01-10
No Photo Available
Carex paucifructus CBR 2006-01-10
No Photo Available
Cryptantha subretusa CBR 2006-01-10
No Photo Available
Castilleja leschkeana Point Reyes paintbrush Orobanchaceae perennial herb (hemiparasitic) Jun None None GX SX 1A Marshes and swamps (coastal) 0 10 0 35 Yes 2012-11-27
No Photo Available
Calamagrostis densa CBR 2006-01-10
No Photo Available
Cirsium walkerianum CBR 2006-01-10
No Photo Available
Castilleja culbertsonii CBR 2006-01-10
No Photo Available
Calycadenia tenella CBR 2006-01-10
No Photo Available
Ceanothus impressus var. nipomensis Nipomo Mesa ceanothus Rhamnaceae perennial shrub Feb-Apr None None G3T2 S2 1B.2 Agriculture, Development Chaparral Sandy 30 245 100 805 2006-01-10 Photo of Ceanothus impressus var. nipomensis
© 2022 Debra L Cook
Cheilanthes viscida CBR 2006-01-10
No Photo Available
Chorizanthe fimbriata var. fimbriata CBR 2006-01-10
No Photo Available
Chorizanthe fimbriata var. laciniata CBR 2006-01-10
No Photo Available
Cryptantha hoffmannii CBR 2006-01-10
No Photo Available
Calystegia soldanella CBR 2006-01-10
No Photo Available
Camissonia graciliflora CBR 2006-01-10
No Photo Available
Collinsia sparsiflora var. sparsiflora CBR 2006-01-10
No Photo Available
Calochortus coeruleus var. nanus CBR 2006-01-10
No Photo Available
Calochortus elegans var. oreophyllus CBR 2006-01-10
No Photo Available
Castilleja martinii var. clokeyi CBR 2006-01-10
No Photo Available
Carex incurviformis var. incurviformis CBR 2006-01-10
No Photo Available
Chorizanthe stellulata CBR 2006-01-10
No Photo Available
Cheilanthes clevelandii CBR 2006-01-10
No Photo Available
Cheilanthes fibrillosa CBR 2006-01-10
No Photo Available
Cheilanthes newberryi CBR 2006-01-10
No Photo Available
Caulanthus heterophyllus var. pseudosimulans CBR 2006-01-10
No Photo Available
Calochortus elegans CBR 2006-01-10
No Photo Available
Calochortus kennedyi var. munzii CBR 2006-01-10
No Photo Available
Calycadenia truncata ssp. microcephala CBR 2006-01-10
No Photo Available
Calystegia macrostegia ssp. macrostegia CBR 2006-01-10
No Photo Available
Camissonia claviformis ssp. lancifolia CBR 2006-01-10
No Photo Available
Camissonia pterosperma CBR 2006-01-10
No Photo Available
Castilleja exserta ssp. venusta CBR 2006-01-10
No Photo Available
Castilleja subinclusa ssp. franciscana CBR 2006-01-10
No Photo Available
Ceanothus jepsonii var. albiflorus CBR 2006-01-10
No Photo Available
Ceanothus megacarpus var. pendulus CBR 2006-01-10
No Photo Available
Chlorogalum parviflorum CBR 2006-01-10
No Photo Available
Chorizanthe biloba var. biloba CBR 2006-01-10
No Photo Available
Chrysothamnus depressus CBR 2006-01-10
No Photo Available
Clarkia speciosa ssp. speciosa CBR 2006-01-10
No Photo Available
Cleome serrulata CBR 2006-01-10
No Photo Available
Collinsia sparsiflora var. arvensis CBR 2006-01-10
No Photo Available
Comarostaphylis diversifolia ssp. planifolia CBR 2006-01-10
No Photo Available
Coreopsis douglasii CBR 2006-01-10
No Photo Available
Cryptantha alpicola CBR 2006-01-10
No Photo Available
Cymopterus aboriginum CBR 2006-01-10
No Photo Available
Chorizanthe procumbens CBR 2006-01-10
No Photo Available
Clarkia mosquinii ssp. xerophila CBR 2006-01-10
No Photo Available
Corydalis caseana ssp. caseana CBR 2006-01-10
No Photo Available
Chorizanthe diffusa CBR 2006-01-10
No Photo Available
Cymopterus globosus globose cymopterus Apiaceae perennial herb Mar-Jun None None G3G4 S1 2B.2 SB_SBBG Great Basin scrub Flats, Openings, Sandy 1200 2135 3935 7005 2006-02-07
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
Cypripedium parviflorum var. makasin northern yellow lady's-slipper Orchidaceae perennial herb May-Aug None None G5T4T5 S1 3.1 Bogs and fens, Meadows and seeps Mesic 0 1500 0 4920 2006-09-29
No Photo Available
Claytonia parviflora ssp. grandiflora streambank spring beauty Montiaceae annual herb Feb-May None None G5T3 S3 4.2 Cismontane woodland Rocky 250 1200 820 3935 Yes 2006-09-29
No Photo Available
Chamaesyce glyptosperma CBR 2006-10-04
No Photo Available
Coptis laciniata Oregon goldthread Ranunculaceae perennial rhizomatous herb (Feb)Mar-May(Sep-Nov) None None G4? S3? 4.2 Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Other, Road/trail construction/maint., Wood cutting or brush clearing Meadows and seeps, North Coast coniferous forest (streambanks) Mesic 0 1000 0 3280 2006-10-16 Photo of Coptis laciniata
© 2021 Scot Loring
Calystegia collina ssp. tridactylosa three-fingered morning-glory Convolvulaceae perennial rhizomatous herb Apr-Jun None None G4T1 S1 1B.2 BLM_S Development, Road/trail construction/maint. Chaparral, Cismontane woodland Gravelly, Openings, Rocky, Serpentine 0 600 0 1970 Yes 2006-11-17
No Photo Available
Cirsium arizonicum var. tenuisectum desert mountain thistle Asteraceae perennial herb Jun-Nov None None G5T2 S2 1B.2 SB_CalBG/RSABG Other, Recreational use (non-ORV) Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland Disturbed areas, Roadsides (often), Rocky 1500 2800 4920 9185 2006-12-27
No Photo Available
Cuscuta jepsonii Jepson's dodder Convolvulaceae annual vine (parasitic) Jul-Sep None None G3 S3 1B.2 Biocides, Foot traffic/trampling, Logging, Road/trail construction/maint., Wood cutting or brush clearing Lower montane coniferous forest, North Coast coniferous forest Streambanks 1200 2300 3935 7545 Yes 1974-01-01 Photo of Cuscuta jepsonii
©2019 Dean Wm. Taylor
Clinopodium mimuloides monkey-flower savory Lamiaceae perennial herb Jun-Oct None None G3 S3 4.2 Chaparral, North Coast coniferous forest Mesic, Streambanks 305 1800 1000 5905 Yes 2007-05-04
No Photo Available
Centromadia parryi ssp. rudis Parry's rough tarplant Asteraceae annual herb May-Oct None None G3T3 S3 4.2 Valley and foothill grassland, Vernal pools Alkaline, Roadsides (sometimes), Seeps, Vernally Mesic 0 100 0 330 Yes 2007-05-22 Photo of Centromadia parryi ssp. rudis
© 2019 John Doyen
Cuscuta californica var. apiculata pointed dodder Convolvulaceae annual vine (parasitic) Feb-Aug None None G5T3 S3? 3 Mojavean desert scrub, Sonoran desert scrub Sandy 0 500 0 1640 2007-06-13
No Photo Available
Clematis pauciflora CBR 2007-06-15
No Photo Available
Cupressus arizonica ssp. arizonica CBR 2007-06-27
No Photo Available
Carex klamathensis Klamath sedge Cyperaceae perennial rhizomatous herb None None G2 S2 1B.2 SB_UCSC Chaparral, Cismontane woodland, Meadows and seeps Serpentine 1000 1140 3280 3740 2008-03-20
No Photo Available
Calyptridium pygmaeum pygmy pussypaws Montiaceae annual herb Jun-Aug None None G1G2 S1S2 1B.2 SB_CalBG/RSABG; USFS_S Recreational use (non-ORV) Subalpine coniferous forest, Upper montane coniferous forest Gravelly (sometimes), Sandy (sometimes) 1980 3110 6495 10205 Yes 2008-10-10
No Photo Available
Cymopterus multinervatus purple-nerve cymopterus Apiaceae perennial herb Mar-Apr None None G4G5 S2 2B.2 Development, Grazing, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Mojavean desert scrub, Pinyon and juniper woodland Gravelly (sometimes), Sandy (sometimes) 790 1800 2590 5905 2008-11-20
No Photo Available
Castilleja ambigua var. ambigua johnny-nip Orobanchaceae annual herb (hemiparasitic) Mar-Aug None None G4T4 S3S4 4.2 SB_CalBG/RSABG Coastal bluff scrub, Coastal prairie, Coastal scrub, Marshes and swamps, Valley and foothill grassland, Vernal pools (margins) 0 435 0 1425 2009-02-04 Photo of Castilleja ambigua var. ambigua
©2011 Dylan Neubauer
Cylindropuntia fosbergii pink teddy-bear cholla Cactaceae perennial stem Mar-May None None G2 S2 1B.3 BLM_S Sonoran desert scrub 85 850 280 2790 Yes 2009-04-02
No Photo Available
Collomia tenella slender collomia Polemoniaceae annual herb Jun-Jul None None G4 S1 2B.2 Foot traffic/trampling, Grazing Upper montane coniferous forest 2170 2170 7120 7120 2009-04-17
No Photo Available
Corispermum americanum var. americanum American bugseed Chenopodiaceae annual herb Apr-May None None G5?T5? S1 2B.2 Non-native plant impacts Desert dunes 880 1160 2885 3805 2009-05-11
No Photo Available
Cryptantha fendleri sand dune cryptantha Boraginaceae annual herb Jun-Jul None None G5 S1 2B.2 Great Basin scrub 1950 2210 6400 7250 2009-11-16
No Photo Available
Castilleja ambigua var. insalutata pink Johnny-nip Orobanchaceae annual herb (hemiparasitic) May-Aug None None G4T2 S2 1B.1 BLM_S Coastal prairie, Coastal scrub 0 100 0 330 Yes 2010-03-09
No Photo Available
Calochortus uniflorus pink star-tulip Liliaceae perennial bulbiferous herb Apr-Jun None None G4 S4 4.2 SB_SBBG Coastal prairie, Coastal scrub, Meadows and seeps, North Coast coniferous forest 10 1070 35 3510 2010-03-04 Photo of Calochortus uniflorus
© 2021 Scot Loring
Cleomella palmeri Palmer's jackass-clover Cleomaceae perennial deciduous shrub Jan-Dec None None G5T3T5 S1 2B.1 Agriculture, Development, Groundwater pumping, ORV activity Chenopod scrub, Desert dunes, Sonoran desert scrub, Sonoran thorn woodland 0 300 0 985 2010-06-10
No Photo Available
Clarkia tembloriensis ssp. longistyla CBR 2011-02-03
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
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
Calyptridium arizonicum Arizona pussypaws Montiaceae annual herb Mar-Apr None None G3? S1 2B.1 SB_CalBG/RSABG Foot traffic/trampling, Recreational use (non-ORV) Sonoran desert scrub Metamorphic, Washes 610 790 2000 2590 2011-08-17
No Photo Available
Carex amplectens CBR 2011-06-09
No Photo Available
Cuscuta obtusiflora var. glandulosa Peruvian dodder Convolvulaceae annual vine (parasitic) Jul-Oct None None G5T4? SH 2B.2 Development Marshes and swamps (freshwater) 15 280 50 920 2011-08-24
No Photo Available
Cuscuta pacifica var. papillata Mendocino dodder Convolvulaceae annual vine (parasitic) (Jun)Jul-Oct None None G5T1 S1 1B.2 Coastal dunes (interdune depressions) 0 50 0 165 Yes 2011-09-20
No Photo Available
Cuscuta veatchii CBR 2011-09-06
No Photo Available
Cuscuta suksdorfii var. suksdorfii CBR 2011-07-20
No Photo Available
Cuscuta suksdorfii var. subpedicellata CBR 2011-07-20
No Photo Available
Clarkia temblorensis ssp. longistyla CBR 2011-02-03
No Photo Available
Clarkia stellata CBR 2011-09-01
No Photo Available
Carex stevenii Steven's sedge Cyperaceae perennial rhizomatous herb Aug None None G5T4? S1 2B.2 Alpine boulder and rock field Dry (sometimes), Streambanks (sometimes) 2850 3385 9350 11105 2011-11-21
No Photo Available
Cuscuta brachycalyx var. apodanthera CBR 2011-11-29
No Photo Available
Cardamine angulata seaside bittercress Brassicaceae perennial herb (Jan)Mar-Jul None None G4G5 S3 2B.2 Altered flood/tidal/hydrologic regime, Erosion/runoff, Foot traffic/trampling, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest, North Coast coniferous forest Streambanks 15 915 50 3000 2012-04-10 Photo of Cardamine angulata
© 2021 Scot Loring
Carex orestera CBR 2012-09-06
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
Castilleja ambigua var. meadii Mead's owls-clover Orobanchaceae annual herb (hemiparasitic) Apr-May None None G4T1 S1 1B.1 Non-native plant impacts Meadows and seeps, Vernal pools Clay, Gravelly, Volcanic 450 475 1475 1560 Yes 2013-01-03
No Photo Available
Cryptantha wigginsii Wiggins' cryptantha Boraginaceae annual herb Feb-Jun None None G2 S1 1B.2 Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Recreational use (non-ORV), Vandalism/dumping/litter Coastal scrub Clay (often) 20 275 65 900 2013-05-21
No Photo Available
Carex nardina nard sedge Cyperaceae perennial herb Aug-Sep None None G5 S1 2B.2 Subalpine coniferous forest Carbonate, Rocky 2105 2175 6905 7135 2013-10-28 Photo of Carex nardina
J. Mastrogiuseppe
Calicium adspersum spiral-spored gilded-head pin lichen Caliciaceae crustose lichen (epiphytic) None None G3G4 S1 2B.2 USFS_S Improper burning regime, Logging Lower montane coniferous forest, North Coast coniferous forest 200 200 655 655 2014-03-01 Photo of Calicium adspersum
© 2014 Eric B. Peterson
Cladonia firma popcorn lichen Cladoniaceae squamulose lichen (terricolous) None None G4 S1 2B.1 Non-native plant impacts, Other Coastal dunes (stabilized), Coastal scrub 30 75 100 245 2014-03-01
No Photo Available
Climacium dendroides tree climacium moss Climaciaceae moss None None G5 S1 2B.1 Altered flood/tidal/hydrologic regime, Grazing, Improper burning regime Bogs and fens (edges), North Coast coniferous forest (streams) 1485 1485 4870 4870 2014-05-05 Photo of Climacium dendroides
©2021 Scot Loring
Coscinodon arctolimnius ssp. higuchii Higuchi's sieve-tooth moss Grimmiaceae moss None None GUTU S1S3 4.2 Alpine boulder and rock field Dry (usually), Rocky 2935 2935 9630 9630 2014-05-13
No Photo Available
Calystegia vanzuukiae Van Zuuk's morning-glory Convolvulaceae perennial rhizomatous herb May-Aug None None G2Q S2 1B.3 BLM_S; SB_UCSC Dam/Inundation, Foot traffic/trampling, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Cismontane woodland Gabbroic, Serpentine 500 1180 1640 3870 Yes 2014-07-16
No Photo Available
Calystegia felix lucky morning-glory Convolvulaceae annual rhizomatous herb Mar-Sep None None G1Q S1 1B.1 Altered flood/tidal/hydrologic regime, Biocides, Development, Other Meadows and seeps (sometimes alkaline), Riparian scrub (alluvial) Alkaline (sometimes), Loam (sometimes) 30 215 100 705 Yes 2014-07-16
No Photo Available
Cryptantha spithamaea Red Hills cryptantha Boraginaceae annual herb Apr-May None None G2 S2 1B.3 BLM_S; SB_UCSC Chaparral, Cismontane woodland Openings (sometimes), Serpentine, Streambanks (sometimes) 275 460 900 1510 2014-12-18
No Photo Available
Cylindropuntia chuckwallensis CBR 2015-06-16
No Photo Available
Carex cyrtostachya Sierra arching sedge Cyperaceae perennial herb May-Aug None None G2 S2 1B.2 Altered flood/tidal/hydrologic regime, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Waterway bank protection/maintenance Lower montane coniferous forest (mesic), Marshes and swamps, Meadows and seeps, Riparian forest (margins) 610 1360 2000 4460 Yes 2015-08-18
No Photo Available
Chrysosplenium glechomifolium Pacific golden saxifrage Saxifragaceae perennial herb Feb-Jun None None G5? S3 4.3 North Coast coniferous forest, Riparian forest Roadsides (sometimes), Seeps (sometimes), Streambanks 10 540 35 1770 2015-10-15 Photo of Chrysosplenium glechomifolium
© 2021 Scot Loring
Crepis runcinata ssp. hallii CBR 1994-01-01
No Photo Available
Crepis runcinata ssp. andersonii CBR 2015-10-26
No Photo Available
Crepis runcinata ssp. imbricata CBR 2015-01-26
No Photo Available
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
Ceanothus decornutus Nicasio ceanothus Rhamnaceae perennial shrub Mar-May None None G1 S1 1B.2 SB_CalBG/RSABG Non-native plant impacts, Other Chaparral (maritime) Clay (sometimes), Rocky, Serpentine 235 290 770 950 Yes 2016-06-16 Photo of Ceanothus decornutus
© 2014 Vernon Smith
Chamaesyce hyssopifolia CBR 2016-11-02
No Photo Available
Ceanothus cuneatus var. dubius CBR 2016-11-04
No Photo Available
Cylindropuntia xtetracantha CBR 2017-01-06
No Photo Available
Ceratophyllum echinatum CBR 2017-01-12
No Photo Available
Chorizanthe minutiflora Fort Ord spineflower Polygonaceae annual herb Apr-Jul None None G1 S1 1B.2 SB_SBBG Chaparral (maritime), Coastal scrub Openings, Sandy 55 150 180 490 Yes 2017-01-17 Photo of Chorizanthe minutiflora
© 2019 Aaron Schusteff
Calochortus argillosus CBR 2017-02-27
No Photo Available
Cryptantha rostellata red-stemmed cryptantha Boraginaceae annual herb Apr-Jun None None G4 S3 4.2 Cismontane woodland, Valley and foothill grassland Gravelly (often), Openings, Roadsides (often), Volcanic 40 800 130 2625 2018-06-26
No Photo Available
Chorizanthe aphanantha Irish Hills spineflower Polygonaceae annual herb Apr-Jun None None G1 S1 1B.1 SB_SBBG Chaparral (edges, openings), Coastal scrub Gravelly, Rocky, Serpentine 100 370 330 1215 Yes 2019-06-11 Photo of Chorizanthe aphanantha
© 2019 Keir Morse
Claytonia peirsonii ssp. bernardinus San Bernardino spring beauty Montiaceae perennial herb Mar-Apr None None G2G3T1 S1 1B.1 SB_CalBG/RSABG Pinyon and juniper woodland, Upper montane coniferous forest Carbonate, Openings (usually), Rocky, Talus 2360 2465 7745 8090 Yes 2019-10-30
No Photo Available
Claytonia peirsonii ssp. californacis Furnace spring beauty Montiaceae perennial herb Mar-May None None G2G3T1 S1 1B.1 SB_CalBG/RSABG Pinyon and juniper woodland, Upper montane coniferous forest Carbonate, Openings (usually), Rocky, Talus 2300 2300 7545 7545 Yes 2019-10-30
No Photo Available
Claytonia peirsonii ssp. yorkii York's spring beauty Montiaceae perennial herb Mar-May None None G2G3T1 S1 1B.1 ORV activity, Other Cismontane woodland Alkaline, Openings (usually), Rocky, Talus, Volcanic 1450 1505 4755 4940 Yes 2019-11-04
No Photo Available
Claytonia panamintensis Panamint spring beauty Montiaceae perennial herb Mar-May None None G1 S1 1B.1 Pinyon and juniper woodland (openings) Carbonate, Rocky, Talus 1825 1930 5990 6330 2019-11-04
No Photo Available
Ceanothus foliosus var. viejasensis Viejas Mountain ceanothus Rhamnaceae perennial shrub Mar-Jun None None G3T1 S1 1B.2 Chaparral (gabbroic) Gabbroic 785 1370 2575 4495 Yes 2019-01-30
No Photo Available
Ceanothus pendletonensis Pendleton ceanothus Rhamnaceae perennial shrub Mar-Jun None None G1 S1 1B.2 SB_CRES Chaparral, Cismontane woodland Granitic 110 870 360 2855 Yes 2019-01-30 Photo of Ceanothus pendletonensis
© 2019 Ron Vanderhoff
Ceanothus thyrsiflorus var. obispoensis San Luis Obispo ceanothus Rhamnaceae perennial shrub Jun None None G5T1 S1 1B.1 SB_UCSC Chaparral, Cismontane woodland 140 225 460 740 Yes 2019-01-30
No Photo Available
Catabrosa aquatica water whorlgrass Poaceae perennial stoloniferous herb Jul-Sep None None G5 S1 2B.1 Foot traffic/trampling, Grazing, ORV activity Meadows and seeps Streambanks 2018-12-12
No Photo Available
Claytonia obovata Rydberg's spring beauty Montiaceae perennial herb (Mar-Apr)May-Jun(Jul) None None G4 S3 4.3 Subalpine coniferous forest Openings (usually), Rocky, Talus 1385 2835 4545 9300 2020-03-03 Photo of Claytonia obovata
©2015 John Doyen
Claytonia serpenticola serpentine spring beauty Montiaceae perennial herb Apr-Jun(Jul) None None G3 S3 4.3 Subalpine coniferous forest, Upper montane coniferous forest Openings (usually), Rocky, Serpentine (usually) 1000 2450 3280 8040 2019-12-31 Photo of Claytonia serpenticola
©2020 Matt C. Berger
Calystegia macrostegia ssp. cyclostegia CBR 2019-07-15
No Photo Available
Carex norvegica CBR 1994-01-01
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
Castilleja ambigua var. heckardii Heckard's owl's-clover Orobanchaceae annual herb May-Jul None None G5T1 S1 1B.1 Coastal prairie Openings, Sandy, Vernally Mesic 50 180 165 590 2022-04-07 Photo of Castilleja ambigua var. heckardii
© 2006 Dave Hacker
Cryptantha pterocarya var. stenoloba narrow-lobed cryptantha Boraginaceae annual herb Mar-Apr None None G5T2T3 S1 2B.1 ORV activity Desert dunes Granitic, Gravelly, Rocky, Sandy 155 365 510 1200 2022-07-18
No Photo Available
Camissonia lacustris grassland suncup Onagraceae annual herb Mar-Jun None None G2 S2 1B.2 Dam/Inundation, Development, Non-native plant impacts, Road/trail construction/maint. Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland Granitic, Gravelly, Serpentine 180 1220 590 4005 2022-09-19 Photo of Camissonia lacustris
© 2021 Ryan O'Dell
Collema nigrescens blistered jelly lichen CBR 2022-08-31
No Photo Available
Calycadenia spicata spicate calycadenia Asteraceae annual herb May-Sep None None G3? S3 1B.3 Cismontane woodland, Valley and foothill grassland Adobe, Clay, Disturbed areas, Dry, Gravelly, Openings, Roadsides, Rocky 40 1400 130 4595 2023-04-05 Photo of Calycadenia spicata
© 2023 Christopher Bronny
Chylismia munzii Death Valley suncup Onagraceae annual herb Mar-Jun(Nov) None None 4.2 Mojavean desert scrub Carbonate (sometimes), Dry, Gravelly, Rocky, Sandy, Slopes, Washes 275 1670 900 5480 2024-01-18
No Photo Available
Calochortus albus var. rubellus CBR 2024-02-29
No Photo Available
Calochortus amoenus CBR 2024-02-29
No Photo Available
Calystegia macrostegia ssp. arida CBR 2024-02-29
No Photo Available
Camissonia claviformis ssp. funerea CBR 2024-02-29
No Photo Available
Camissonia claviformis ssp. peirsonii CBR 2024-02-29
No Photo Available
Camissonia claviformis ssp. yumae CBR 2024-02-29
No Photo Available
Camissonia robusta CBR 2024-02-29
No Photo Available
Cardamine breweri var. orbicularis CBR 2024-02-29
No Photo Available
Cardamine californica var. cuneata CBR 2024-02-29
No Photo Available
Cardamine "marmorata" CBR 2024-02-29
No Photo Available
Carex garberi CBR 2024-02-29
No Photo Available
Carex mendocinensis CBR 2024-02-29
No Photo Available
Castilleja chrymactis CBR 2024-02-29
No Photo Available
Castilleja inflata CBR 2024-02-29
No Photo Available
Caulanthus crassicaulis var. glaber CBR 2024-02-29
No Photo Available
Ceanothus arboreus var. glaber CBR 2024-02-29
No Photo Available
Ceanothus greggii var. perplexans CBR 2024-02-29
No Photo Available
Ceanothus griseus var. horizontalis CBR 2024-02-29
No Photo Available
Ceanothus oliganthus var. orcuttii CBR 2024-02-29
No Photo Available
Ceanothus papillosus var. papillosus CBR 2024-02-29
No Photo Available
Ceanothus prostratus var. occidentalis CBR 2024-02-29
No Photo Available
Ceanothus thyrsiflorus var. repens CBR 2024-02-29
No Photo Available
Centaurium calycosum CBR 2024-02-29
No Photo Available
Chamaesyce ocellata var. kirbyi CBR 2024-02-29
No Photo Available
Chimaphila menziesii CBR 2024-02-29
No Photo Available
Chlorogalum pomeridianum var. divaricatum CBR 2024-02-29
No Photo Available
Clarkia amoena ssp. amoena CBR 2024-02-29
No Photo Available
Clarkia davyi CBR 2024-02-29
No Photo Available
Clarkia purpurea ssp. purpurea CBR 2024-02-29
No Photo Available
Collinsia heterophylla var. austromontana CBR 2024-02-29
No Photo Available
Collinsia torreyi var. brevicarinata CBR 2024-02-29
No Photo Available
Castilleja brevistyla CBR 2024-03-06
No Photo Available
Camissoniopsis cheiranthifolia ssp. suffruticosa CBR 2024-03-19
No Photo Available
Calochortus clavatus var. pallidus CBR 2024-03-19
No Photo Available
Carex pellita CBR 2024-03-19
No Photo Available