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CNPS Rare Plant Inventory


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109 matches found. Click on scientific name for details

Search Criteria: Scientific Name starts with B

Scientific Name Common Name Family Lifeform Blooming Period Fed List State List Global Rank State Rank CA Rare Plant Rank Other Status Threats General Habitats Microhabitats Lowest Elevation (m) Highest Elevation (m) Lowest Elevation (ft) Highest Elevation (ft) CA Endemic Date Added Photo
Boechera bodiensis Bodie Hills rockcress Brassicaceae perennial herb Jun-Jul(Aug) None None G3 S3 1B.3 BLM_S; USFS_S Foot traffic/trampling, Grazing, Mining, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Alpine boulder and rock field, Great Basin scrub, Pinyon and juniper woodland, Subalpine coniferous forest 2085 3530 6840 11580 1984-01-01
No Photo Available
Boechera peirsonii San Bernardino rockcress Brassicaceae perennial herb Mar-Aug None None G1 S1 1B.2 SB_CalBG/RSABG; USFS_S Erosion/runoff, Foot traffic/trampling, Over-collecting/poaching, Recreational use (non-ORV) Subalpine coniferous forest (rocky) 2700 3200 8860 10500 Yes 1980-01-01
No Photo Available
Boechera cobrensis Masonic rockcress Brassicaceae perennial herb Jun-Jul None None G5 S3 2B.3 Development, Foot traffic/trampling, Grazing, Road/trail construction/maint. Great Basin scrub, Pinyon and juniper woodland Sandy 1375 3105 4510 10190 1974-01-01
No Photo Available
Boechera constancei Constance's rockcress Brassicaceae perennial herb May-Jul None None G2 S2 1B.1 USFS_S Biocides, Disease, Erosion/runoff, Improper burning regime, Logging, Mining, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Upper montane coniferous forest Rocky, Serpentine 975 2025 3200 6645 Yes 1974-01-01
No Photo Available
Boechera hoffmannii Hoffmann's rockcress Brassicaceae perennial herb Feb-Apr FE None G1G2 S1S2 1B.1 SB_CalBG/RSABG; SB_SBBG Erosion/runoff, Grazing, Non-native plant impacts Chaparral, Coastal bluff scrub, Coastal scrub Rocky, Sandy, Volcanic 60 395 195 1295 Yes 1974-01-01
No Photo Available
Boechera johnstonii Johnston's rockcress Brassicaceae perennial herb Feb-Jun None None G1 S1 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Non-native plant impacts, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Lower montane coniferous forest Clay 1350 2150 4430 7055 Yes 1974-01-01
No Photo Available
Boechera koehleri Koehler's stipitate rockcress Brassicaceae perennial herb (Mar)Apr-Jul None None G3G4 S3 1B.3 USFS_S Erosion/runoff, Foot traffic/trampling, ORV activity, Other, Road/trail construction/maint. Chaparral, Lower montane coniferous forest Rocky, Serpentine 155 1660 510 5445 1988-01-01 Photo of Boechera koehleri
©2019 Dana York
Boechera microphylla None None G4Q S3 CBR
No Photo Available
Boechera parishii Parish's rockcress Brassicaceae perennial herb Apr-May None None G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Pebble (Pavement) plain, Pinyon and juniper woodland, Upper montane coniferous forest Carbonate (sometimes), Rocky 1770 2990 5805 9810 Yes 1974-01-01
No Photo Available
Boechera pinzliae Pinzl's rockcress Brassicaceae perennial herb Jul None None G1G2 S1 1B.3 USFS_S Alpine boulder and rock field, Subalpine coniferous forest (scree, sandy) 3000 3350 9845 10990 1988-01-01
No Photo Available
Boechera lincolnensis Lincoln rockcress Brassicaceae perennial herb Mar-May None None G4G5 S3 2B.3 BLM_S Chenopod scrub, Mojavean desert scrub Carbonate 1100 2705 3610 8875 1984-01-01
No Photo Available
Boechera pygmaea Tulare County rockcress Brassicaceae perennial herb Jun-Jul None None G3 S3 4.3 Meadows and seeps (edges), Subalpine coniferous forest Granitic (sometimes), Gravelly (sometimes), Sandy (sometimes), Volcanic (sometimes) 2315 3400 7595 11155 Yes 1974-01-01
No Photo Available
Boechera shockleyi Shockley's rockcress Brassicaceae perennial herb May-Jun None None G3 S2 2B.2 SB_CalBG/RSABG; USFS_S Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Pinyon and juniper woodland (carbonate, gravelly, quartzite, rocky) 875 2310 2870 7580 1974-01-01
No Photo Available
Boechera tiehmii Tiehm's rockcress Brassicaceae perennial herb Jul-Aug None None G3 S3 1B.3 SB_CalBG/RSABG; USFS_S Road/trail construction/maint. Alpine boulder and rock field (granitic) 2970 3590 9745 11780 1988-01-01
No Photo Available
Baccharis plummerae ssp. plummerae Plummer's baccharis Asteraceae perennial deciduous shrub May-Oct None None G3T3 S3 4.3 SB_CalBG/RSABG Broadleafed upland forest, Chaparral, Cismontane woodland, Coastal scrub Rocky 5 425 15 1395 Yes 1980-01-01
No Photo Available
Baccharis vanessae Encinitas baccharis Asteraceae perennial deciduous shrub Aug-Nov FT CE G1 S1 1B.1 SB_CRES Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral (maritime), Cismontane woodland Sandstone 60 720 195 2360 Yes 1980-01-01
No Photo Available
Balsamorhiza macrolepis big-scale balsamroot Asteraceae perennial herb Mar-Jun None None G2 S2 1B.2 BLM_S; USFS_S Development, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Valley and foothill grassland Serpentine (sometimes) 45 1555 150 5100 Yes 1974-01-01 Photo of Balsamorhiza macrolepis
©1998 Dean Wm. Taylor
Balsamorhiza sericea silky balsamroot Asteraceae perennial herb Apr-May(Jun-Jul) None None G3 S3 1B.3 SB_BerrySB; SB_CalBG/RSABG Improper burning regime, Logging, Other, Road/trail construction/maint. Lower montane coniferous forest (serpentinite) 850 2130 2790 6990 1984-01-01 Photo of Balsamorhiza sericea
© 2021 Scot Loring
Benitoa occidentalis western lessingia Asteraceae annual herb May-Nov None None G3G4 S3S4 4.3 Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland Clay (sometimes), Serpentine (sometimes) 450 1070 1475 3510 Yes 1974-01-01
No Photo Available
Bensoniella oregona bensoniella Saxifragaceae perennial herb May-Jul None CR G3 S2 1B.1 SB_UCSC; USFS_S Altered flood/tidal/hydrologic regime, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Bogs and fens, Lower montane coniferous forest (openings), Meadows and seeps Mesic 900 1400 2955 4595 1974-01-01 Photo of Bensoniella oregona
© 2021 Scot Loring
Bergerocactus emoryi golden-spined cereus Cactaceae perennial stem May-Jun None None G2G3 S2 2B.2 IUCN_LC; SB_CalBG/RSABG Development, Foot traffic/trampling, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Chaparral, Closed-cone coniferous forest, Coastal scrub Sandy 3 395 10 1295 1974-01-01
No Photo Available
Blennosperma bakeri Sonoma sunshine Asteraceae annual herb Mar-May FE CE G1 S1 1B.1 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Erosion/runoff, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Valley and foothill grassland (mesic), Vernal pools 10 110 35 360 Yes 1974-01-01
No Photo Available
Blennosperma nanum var. robustum Point Reyes blennosperma Asteraceae annual herb Feb-Apr None CR G4T2 S2 1B.2 SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal prairie, Coastal scrub 10 145 35 475 Yes 1974-01-01
No Photo Available
Blepharidachne kingii King's eyelash grass Poaceae perennial herb May None None G4 S2 2B.3 Other Great Basin scrub (usually carbonate) 1065 2135 3495 7005 1974-01-01
No Photo Available
Bloomeria humilis dwarf goldenstar Themidaceae perennial bulbiferous herb Jun None CR G1 S1 1B.2 SB_CalBG/RSABG; SB_SBBG; USFS_S Development, Foot traffic/trampling, Non-native plant impacts, Road/trail construction/maint. Chaparral, Coastal bluff scrub, Valley and foothill grassland 10 120 35 395 Yes 1974-01-01
No Photo Available
Bolandra californica Sierra bolandra Saxifragaceae perennial herb Jun-Jul None None G4 S4 4.3 Lower montane coniferous forest, Upper montane coniferous forest Mesic, Rocky 975 2450 3200 8040 Yes 1974-01-01
No Photo Available
Botrychium crenulatum scalloped moonwort Ophioglossaceae perennial rhizomatous herb Jun-Sep None None G4 S3 2B.2 USFS_S Altered flood/tidal/hydrologic regime, Erosion/runoff, Foot traffic/trampling, Grazing, Groundwater pumping, Improper burning regime, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Bogs and fens, Lower montane coniferous forest, Marshes and swamps (freshwater), Meadows and seeps, Upper montane coniferous forest 1268 3280 4160 10760 1984-01-01 Photo of Botrychium crenulatum
© 2016 Steve Matson
Bouteloua trifida three-awned grama Poaceae perennial herb (Apr)May-Sep None None G4G5 S3 2B.3 SB_CalBG/RSABG Mining, ORV activity Mojavean desert scrub (carbonate, rocky) 700 2000 2295 6560 1974-01-01
No Photo Available
Brodiaea rosea Indian Valley brodiaea Themidaceae perennial bulbiferous herb May-Jun None CE G2Q S2 3.1 BLM_S; USFS_S Dam/Inundation, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Surface water diversion, Vandalism/dumping/litter Chaparral, Cismontane woodland, Closed-cone coniferous forest, Valley and foothill grassland Serpentine 335 1450 1100 4755 Yes 1974-01-01 Photo of Brodiaea rosea
© 2014 Robert E. Preston, Ph.D.
Brodiaea filifolia thread-leaved brodiaea Themidaceae perennial bulbiferous herb Mar-Jun FT CE G2 S2 1B.1 SB_CalBG/RSABG; SB_CRES Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Hybridization, Improper burning regime, Landfill, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Waterway bank protection/maintenance, Wood cutting or brush clearing Chaparral (openings), Cismontane woodland, Coastal scrub, Playas, Valley and foothill grassland, Vernal pools Clay (often) 25 1120 80 3675 Yes 1974-01-01 Photo of Brodiaea filifolia
© 2016 Keir Morse
Brodiaea insignis Kaweah brodiaea Themidaceae perennial bulbiferous herb Apr-Jun None CE G1 S1 1B.2 SB_SBBG; USFS_S Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Other, Road/trail construction/maint. Cismontane woodland, Meadows and seeps, Valley and foothill grassland Clay (sometimes), Granitic (sometimes) 150 1400 490 4595 Yes 1974-01-01 Photo of Brodiaea insignis
© 2007 Robert E. Preston, Ph.D.
Brodiaea kinkiensis San Clemente Island brodiaea Themidaceae perennial bulbiferous herb May-Jun None None G2 S2 1B.2 SB_CalBG/RSABG; SB_CRES Valley and foothill grassland (clay) 305 600 1000 1970 Yes 1974-01-01 Photo of Brodiaea kinkiensis
© 2011 Neal Kramer
Brodiaea orcuttii Orcutt's brodiaea Themidaceae perennial bulbiferous herb May-Jul None None G2 S2 1B.1 BLM_S; SB_CRES; USFS_S Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Closed-cone coniferous forest, Meadows and seeps, Valley and foothill grassland, Vernal pools Clay, Mesic 30 1692 100 5550 Yes 1974-01-01 Photo of Brodiaea orcuttii
© 2001 Ellen Friedman & Ted Dunning
Brodiaea pallida Chinese Camp brodiaea Themidaceae perennial bulbiferous herb May-Jun FT CE G1 S1 1B.1 IUCN_EN Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Grazing, Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland Serpentine (often) 165 385 540 1265 Yes 1974-01-01 Photo of Brodiaea pallida
© 2014 Robert E. Preston, Ph.D.
Bursera microphylla little-leaf elephant tree Burseraceae perennial deciduous tree Jun-Jul None None G4 S2 2B.3 IUCN_LC; SB_CalBG/RSABG Foot traffic/trampling, Other, Recreational use (non-ORV) Sonoran desert scrub (rocky) 200 700 655 2295 1980-01-01
No Photo Available
Bloomeria clevelandii San Diego goldenstar Themidaceae perennial bulbiferous herb Apr-May None None G2G3 S3 1B.1 BLM_S; SB_CalBG/RSABG; SB_CRES; SB_UCBG Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Improper burning regime, Landfill, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Coastal scrub, Valley and foothill grassland, Vernal pools Clay 50 465 165 1525 1974-01-01
No Photo Available
Berberis nevinii Nevin's barberry Berberidaceae perennial evergreen shrub (Feb)Mar-Jun FE CE G1 S1 1B.1 SB_CalBG/RSABG; SB_SBBG Agriculture, Altered flood/tidal/hydrologic regime, Channelization, Dam/Inundation, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Coastal scrub, Riparian scrub Gravelly (sometimes), Sandy (sometimes) 70 825 230 2705 Yes 1980-01-01
No Photo Available
Berberis pinnata ssp. insularis island barberry Berberidaceae perennial evergreen shrub Feb-May FE CE G5T1 S1 1B.2 SB_SBBG Erosion/runoff Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub Rocky 75 400 245 1310 Yes 1980-01-01
No Photo Available
Boechera hirshbergiae Hirshberg's rockcress Brassicaceae perennial herb Mar-May None None G1Q S1 1B.2 SB_CRES Grazing Pebble (Pavement) plain 1400 1415 4595 4645 Yes 2001-01-01
No Photo Available
Bahia neomexicana many-flowered bahia Asteraceae annual herb Sep-Oct None None G5 S2S3 2B.3 Grazing Pinyon and juniper woodland (sandy) 1500 1700 4920 5580 2001-01-01
No Photo Available
Bahiopsis laciniata San Diego County viguiera Asteraceae perennial shrub Feb-Jun(Aug) None None G4 S4 4.3 SB_CalBG/RSABG; SB_CRES Chaparral, Coastal scrub 60 750 195 2460 1974-01-01
No Photo Available
Boechera dispar pinyon rockcress Brassicaceae perennial herb Mar-Jun None None G3 S3 2B.3 SB_CalBG/RSABG 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 Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland Granitic, Gravelly 1200 2540 3935 8335 1994-01-01
No Photo Available
Baccharis plummerae ssp. glabrata San Simeon baccharis Asteraceae perennial deciduous shrub Jun None None G3T1 S1 1B.2 USFS_S Coastal scrub 50 480 165 1575 Yes 1994-01-01
No Photo Available
Balsamorhiza lanata woolly balsamroot Asteraceae perennial herb Apr-Jun None None G3 S3 1B.2 BLM_S; SB_CalBG/RSABG Agriculture, Biocides, Development, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Road/trail construction/maint., Vandalism/dumping/litter Cismontane woodland Rocky, Volcanic 800 1895 2625 6215 1994-01-01 Photo of Balsamorhiza lanata
© 2015 John Doyen
Berberis fremontii Fremont barberry Berberidaceae perennial evergreen shrub Mar-May None None G5 S3 2B.3 SB_CalBG/RSABG Joshua tree "woodland", Pinyon and juniper woodland Granitic (sometimes), Rocky 1145 1720 3755 5645 1980-01-01
No Photo Available
Blepharizonia plumosa big tarplant Asteraceae annual herb Jul-Oct None None G1G2 S1S2 1B.1 SB_CalBG/RSABG Development, Disking, Erosion/runoff, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Valley and foothill grassland Clay (usually) 30 505 100 1655 Yes 1994-01-01
No Photo Available
Botrychium ascendens upswept moonwort Ophioglossaceae perennial rhizomatous herb (Jun)Jul-Aug None None G4 S2 2B.3 USFS_S Altered flood/tidal/hydrologic regime, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Lower montane coniferous forest, Meadows and seeps Mesic 1115 3045 3660 9990 1994-01-01 Photo of Botrychium ascendens
© 2005 Steve Matson
Botrychium neolunaria North American moonwort Ophioglossaceae perennial rhizomatous herb Jun-Sep None None GNR S2 2B.3 USFS_S Altered flood/tidal/hydrologic regime, Grazing, Other, Vandalism/dumping/litter Meadows and seeps Mesic, Rocky (sometimes) 1980 3415 6495 11205 1994-01-01
No Photo Available
Botrychium minganense Mingan moonwort Ophioglossaceae perennial rhizomatous herb Jul-Sep(Oct) None None G5 S4 4.2 USFS_S Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Grazing, Groundwater pumping, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing Bogs and fens, Lower montane coniferous forest, Meadows and seeps (edges), Upper montane coniferous forest Mesic 1190 3290 3905 10795 1994-01-01 Photo of Botrychium minganense
© 2011 Aaron E. Sims
Botrychium montanum western goblin Ophioglossaceae perennial rhizomatous herb Jul-Sep None None G3G4 S2 2B.1 USFS_S Altered flood/tidal/hydrologic regime, 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, Wood cutting or brush clearing Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic 1465 2180 4805 7155 1994-01-01 Photo of Botrychium montanum
©2012 Belinda Lo
Botrychium pinnatum northwestern moonwort Ophioglossaceae perennial rhizomatous herb Jul-Oct None None G5 S2 2B.3 USFS_S Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic 1770 2040 5805 6695 1994-01-01 Photo of Botrychium pinnatum
©2020 Belinda Lo
Baccharis malibuensis Malibu baccharis Asteraceae perennial deciduous shrub Aug None None G1 S1 1B.1 SB_CalBG/RSABG Development, Foot traffic/trampling, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland 150 305 490 1000 Yes 2001-01-01
No Photo Available
Balsamorhiza serrata serrated balsamroot Asteraceae perennial herb May-Jun None None G5 S2 2B.3 Grazing, Improper burning regime Great Basin scrub (rocky) 1400 1765 4595 5790 2001-01-01
No Photo Available
Betula glandulosa dwarf resin birch Betulaceae perennial deciduous shrub May-Jul None None G5 S2 2B.2 IUCN_LC Altered flood/tidal/hydrologic regime, Dam/Inundation, Foot traffic/trampling, Grazing, Recreational use (non-ORV), Surface water diversion Bogs and fens, Lower montane coniferous forest, Marshes and swamps, Meadows and seeps, Subalpine coniferous forest Mesic 1300 2300 4265 7545 2001-01-01 Photo of Betula glandulosa
© 2015 Dean Wm. Taylor
Botrychium lineare slender moonwort Ophioglossaceae perennial herb Unk None None G3 S1 1B.1 USFS_S Foot traffic/trampling, Road/trail construction/maint. Meadows and seeps, Subalpine coniferous forest, Upper montane coniferous forest (often disturbed areas) 2560 2600 8400 8530 2001-01-01
No Photo Available
Botrypus virginianus rattlesnake fern Ophioglossaceae perennial herb Jun-Sep None None G5 S2 2B.2 Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Grazing, Insufficient population/stand size, Logging, Other, Road/trail construction/maint. Bogs and fens, Lower montane coniferous forest (mesic), Meadows and seeps, Riparian forest Streambanks 715 1355 2345 4445 2001-01-01 Photo of Botrypus virginianus
©2003 Martin J. Lenz
Bouteloua eriopoda black grama Poaceae perennial stoloniferous herb May-Aug None None G5 S4 4.2 SB_CalBG/RSABG Joshua tree "woodland", Pinyon and juniper woodland 900 1900 2955 6235 2001-01-01
No Photo Available
Brodiaea leptandra narrow-anthered brodiaea Themidaceae perennial bulbiferous herb May-Jul None None G3? S3? 1B.2 SB_CalBG/RSABG Agriculture, Development, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Over-collecting/poaching, Road/trail construction/maint., Surface water diversion, Wood cutting or brush clearing Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland Volcanic 110 915 360 3000 Yes 2001-01-01 Photo of Brodiaea leptandra
© 2018 Zoya Akulova
Bulbostylis capillaris thread-leaved beakseed Cyperaceae annual herb Jun-Aug None None G5 S3 4.2 IUCN_LC Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest 395 2075 1295 6810 2001-01-01 Photo of Bulbostylis capillaris
©2016 Ryan Batten
Bruchia bolanderi Bolander's bruchia Bruchianceae moss None None G3 S3 4.2 USFS_S Foot traffic/trampling, Improper burning regime, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest 1700 2800 5580 9185 2001-01-01 Photo of Bruchia bolanderi
©2021 Scot Loring
Boechera pendulina rabbit-ear rockcress Brassicaceae perennial herb Apr-Jun None None G5? S2 2B.1 Foot traffic/trampling Great Basin scrub, Pinyon and juniper woodland Carbonate (sometimes), Gravelly (sometimes), Rocky (sometimes) 3050 3200 10005 10500 2004-01-01
No Photo Available
Boechera yorkii Last Chance rockcress Brassicaceae perennial herb May None None G1 S1 1B.3 Other Great Basin scrub, Pinyon and juniper woodland Carbonate 2220 2410 7285 7905 Yes 2005-01-01
No Photo Available
Bacopa nobsiana CBR 2006-01-10
No Photo Available
Boerhavia annulata CBR 2006-01-10
No Photo Available
Brickellia frutescens CBR 2006-01-10
No Photo Available
Buddleja utahensis CBR 2006-01-10
No Photo Available
Bursera hindsiana CBR 2006-01-10
No Photo Available
Berberis sonnei CBR 2006-01-10
No Photo Available
Botrychium pumicola pumice moonwort Ophioglossaceae perennial rhizomatous herb Jul-Sep None None G2 S1 2B.2 USFS_S Alpine boulder and rock field, Subalpine coniferous forest Volcanic 2750 2750 9025 9025 1974-01-01 Photo of Botrychium pumicola
©2010 Eric White
Bouteloua simplex CBR 2006-01-10
No Photo Available
Brickellia nevinii CBR 2006-01-10
No Photo Available
Brickellia knappiana CBR 2006-01-10
No Photo Available
Bromus polyanthus CBR 2006-01-10
No Photo Available
Boschniakia strobilacea CBR 2006-01-10
No Photo Available
Bahia dissecta CBR 2006-01-10
No Photo Available
Baileya multiradiata var. multiradiata CBR 2006-01-10
No Photo Available
Batis maritima CBR 2006-01-10
No Photo Available
Boerhavia coulteri CBR 2006-01-10
No Photo Available
Boykinia rotundifolia CBR 2006-01-10
No Photo Available
Berberis harrisoniana Kofa Mountain barberry Berberidaceae perennial evergreen shrub Jan-Mar None None G2 S1 1B.2 BLM_S; SB_CalBG/RSABG; SB_USDA Erosion/runoff, Foot traffic/trampling, Road/trail construction/maint. Chaparral, Mojavean desert scrub Slopes, Talus, Volcanic (sometimes) 780 840 2560 2755 2006-02-07
No Photo Available
Brodiaea appendiculata CBR 2007-07-20
No Photo Available
Brodiaea santarosae Santa Rosa Basalt brodiaea Themidaceae perennial bulbiferous herb May-Jun None None G1 S1 1B.2 USFS_S Development, Grazing, Mining, Non-native plant impacts, ORV activity, Road/trail construction/maint., Surface water diversion Valley and foothill grassland 565 1045 1855 3430 Yes 2008-02-05 Photo of Brodiaea santarosae
© 2021 W. Juergen Schrenk
Brasenia schreberi watershield Cabombaceae perennial rhizomatous herb (aquatic) Jun-Sep None None G5 S3 2B.3 IUCN_LC Altered flood/tidal/hydrologic regime, Development, Non-native plant impacts, Road/trail construction/maint. Marshes and swamps (freshwater) 0 2200 0 7220 2010-10-27 Photo of Brasenia schreberi
©2014 Kirsten Bovee
Boechera rubicundula Mt. Day rockcress Brassicaceae perennial herb Apr-May None None G1 S1 1B.1 Chaparral Rocky, Slopes 1200 1200 3935 3935 Yes 2011-04-27
No Photo Available
Buxbaumia viridis green shield-moss Buxbaumiaceae moss None None G3G4 S2 2B.2 BLM_S; USFS_S Altered flood/tidal/hydrologic regime, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Other, Recreational use (non-ORV) Lower montane coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest 975 2200 3200 7220 2011-03-23 Photo of Buxbaumia viridis
© 2021 Scot Loring
Boechera serpenticola serpentine rockcress Brassicaceae perennial herb Mar-Jun None None G1 S1 1B.2 SB_CalBG/RSABG Lower montane coniferous forest, Upper montane coniferous forest Serpentine, Talus 790 2100 2590 6890 Yes 2011-05-06 Photo of Boechera serpenticola
©2020 Sierra Pacific Industries
Boechera rollei Rolle's rockcress Brassicaceae perennial herb Aug None None G1 S1 1B.1 SB_CalBG/RSABG Upper montane coniferous forest Rocky, Slopes 1600 1800 5250 5905 2011-06-01 Photo of Boechera rollei
©2012 Dana York
Boechera shevockii Shevock's rockcress Brassicaceae perennial herb Jun-Jul None None G1 S1 1B.1 USFS_S Foot traffic/trampling, Recreational use (non-ORV) Upper montane coniferous forest Granitic 2470 2500 8105 8205 Yes 2011-05-06
No Photo Available
Boechera tularensis Tulare rockcress Brassicaceae perennial herb (May)Jun-Jul(Aug) None None G3 S3 1B.3 SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Grazing, Improper burning regime, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Subalpine coniferous forest, Upper montane coniferous forest Roadsides (sometimes), Rocky, Slopes 1825 3350 5990 10990 Yes 2011-07-05
No Photo Available
Boechera ultraalsa Snow Mountain rockcress Brassicaceae perennial herb Jun-Jul None None G1 S1 1B.1 Upper montane coniferous forest (rocky) 1800 1800 5905 5905 Yes 2011-06-01
No Photo Available
Brodiaea matsonii Sulphur Creek brodiaea Themidaceae perennial bulbiferous herb May-Jun None None G1 S1 1B.1 BLM_S; SB_BerrySB Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Non-native plant impacts, Other, Over-collecting/poaching, Surface water diversion, Vandalism/dumping/litter, Wood cutting or brush clearing Cismontane woodland (streambanks), Meadows and seeps Rocky 195 220 640 720 Yes 2011-07-12 Photo of Brodiaea matsonii
©2016 Len Lindstrand III
Berberis higginsiae Higgin's barberry Berberidaceae perennial shrub Mar-Apr None None G3Q S1 3.2 Development, Other Chaparral, Sonoran desert scrub Granitic (sometimes), Rocky 800 1065 2625 3495 2014-04-30
No Photo Available
Botrychium yaaxudakeit giant moonwort Ophioglossaceae perennial rhizomatous herb Aug None None G3G4 S1 2B.1 USFS_S Alpine boulder and rock field (meadows) 3200 3200 10500 10500 2012-03-05
No Photo Available
Botrychium tunux moosewort Ophioglossaceae perennial rhizomatous herb Aug-Sep None None G3G4 S1 2B.1 USFS_S Alpine boulder and rock field 3050 3050 10005 10005 2012-03-05
No Photo Available
Botrychium paradoxum paradox moonwort Ophioglossaceae perennial rhizomatous herb Aug None None G3G4 S1 2B.1 USFS_S Alpine boulder and rock field (limestone, marble), Upper montane coniferous forest (moist) 1740 4200 5710 13780 2012-03-05 Photo of Botrychium paradoxum
©2011 Ryan Batten
Botrychium pedunculosum stalked moonwort Ophioglossaceae perennial rhizomatous herb Aug None None G3G4 S1 2B.1 USFS_S Grazing Meadows and seeps, Upper montane coniferous forest Granitic, Volcanic 1845 1845 6055 6055 2011-10-31 Photo of Botrychium pedunculosum
© 2011 Aaron E. Sims
Boechera evadens hidden rockcress Brassicaceae perennial herb May-Aug None None G1 S1 1B.3 USFS_S Upper montane coniferous forest Rocky 2560 2850 8400 9350 Yes 2012-04-11
No Photo Available
Brodiaea sierrae Sierra foothills brodiaea Themidaceae perennial bulbiferous herb May-Aug None None G3 S3 4.3 SB_UCSC Chaparral, Cismontane woodland, Lower montane coniferous forest Gabbroic, Serpentine (usually) 50 980 165 3215 Yes 2012-11-20 Photo of Brodiaea sierrae
© 2006 George W. Hartwell
Berberis haematocarpa CBR 2014-04-30
No Photo Available
Bryum chryseum brassy bryum Bryaceae moss None None G5 S3 4.3 Chaparral (openings), Cismontane woodland, Valley and foothill grassland 50 600 165 1970 2014-05-05
No Photo Available
Boechera calderi CBR 2015-01-27
No Photo Available
Bergia texana CBR 2017-02-27
No Photo Available
Brodiaea rosea ssp. vallicola valley brodiaea Themidaceae perennial bulbiferous herb Apr-May(Jun) None None G5T3 S3 4.2 Valley and foothill grassland, Vernal pools Alluvial Terraces, Gravelly, Sandy 10 335 35 1100 Yes 2019-01-07 Photo of Brodiaea rosea ssp. vallicola
© 2011 Steven Perry
Bryum calobryoides beautiful bryum moss CBR 2022-09-28
No Photo Available
Baccharis brachyphylla CBR 2024-02-29
No Photo Available
Boerhavia triquetra CBR 2024-02-29
No Photo Available
Brickellia longifolia var. multiflora CBR 2024-02-29
No Photo Available
Brodiaea elegans ssp. hooveri CBR 2024-02-29
No Photo Available
Brickellia arguta var. odontolepis CBR 2024-02-29
No Photo Available

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 25 April 2024].