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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
Prunus eremophila Mojave Desert plum Rosaceae perennial deciduous shrub Mar-Apr None None G2 S2 1B.2 SB_CalBG/RSABG Mojavean desert scrub Granitic (sometimes), Washes (usually) 975 1175 3200 3855 Yes 2004-01-01
No Photo Available
Pseudorontium cyathiferum Deep Canyon snapdragon Plantaginaceae annual herb Feb-Apr None None G4G5 S1 2B.3 Sonoran desert scrub (rocky) 0 800 0 2625 1980-01-01
No Photo Available
Poa rhizomata timber bluegrass Poaceae perennial rhizomatous herb Apr-Jul None None G3G4 S3S4 1B.3 Lower montane coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest Mesic, Serpentine (sometimes) 520 2040 1705 6695 1974-01-01
No Photo Available
Podistera nevadensis Sierra podistera Apiaceae perennial herb Jul-Sep None None G4 S4 4.3 Alpine boulder and rock field 3000 4000 9845 13125 Yes 1980-01-01
No Photo Available
Pogogyne abramsii San Diego mesa mint Lamiaceae annual herb Mar-Jul FE CE G1 S1 1B.1 SB_CalBG/RSABG; SB_CRES Altered flood/tidal/hydrologic regime, Development, Disking, Erosion/runoff, Foot traffic/trampling, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Vernal pools 90 200 295 655 Yes 1974-01-01
No Photo Available
Pogogyne clareana Santa Lucia mint Lamiaceae annual herb Apr-Jul None CE G2 S2 1B.2 SB_SBBG Grazing, Military operations, ORV activity, Road/trail construction/maint. Chaparral, Cismontane woodland, Riparian woodland Streambanks 300 630 985 2065 Yes 1974-01-01
No Photo Available
Pogogyne nudiuscula Otay Mesa mint Lamiaceae annual herb May-Jul FE CE G1 S1 1B.1 SB_CalBG/RSABG Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Vernal pools 90 250 295 820 1974-01-01
No Photo Available
Polemonium chartaceum Mason's sky pilot Polemoniaceae perennial herb Jun-Aug None None G2 S2 1B.3 SB_CalBG/RSABG; USFS_S ORV activity, Other, Road/trail construction/maint. Alpine boulder and rock field, Subalpine coniferous forest Granitic, Rocky, Serpentine, Volcanic (sometimes) 3290 4270 10795 14010 1980-01-01
No Photo Available
Pogogyne floribunda profuse-flowered pogogyne Lamiaceae annual herb May-Sep(Oct) None None G4 S3? 4.2 Development, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Meadows and seeps, Vernal pools Clay 945 1745 3100 5725 1994-01-01 Photo of Pogogyne floribunda
© 2012 Dean Wm. Taylor, Ph.D.
Poliomintha incana frosted mint Lamiaceae perennial shrub Jun-Jul None None G5 SH 2A Lower montane coniferous forest (mesic) 1600 1700 5250 5580 1994-01-01
No Photo Available
Potamogeton epihydrus Nuttall's ribbon-leaved pondweed Potamogetonaceae perennial rhizomatous herb (aquatic) (Jun)Jul-Sep None None G5 S2S3 2B.2 IUCN_LC Altered flood/tidal/hydrologic regime, Non-native plant impacts, ORV activity, Pollution, Recreational use (non-ORV) Marshes and swamps (shallow freshwater) 369 2172 1210 7125 1994-01-01 Photo of Potamogeton epihydrus
Louis-M. Landry, 2010
Potamogeton foliosus ssp. fibrillosus fibrous pondweed Potamogetonaceae perennial rhizomatous herb (aquatic) Unk None None G5T2T4 S1S2 2B.3 Marshes and swamps (shallow freshwater) 5 1300 15 4265 1994-01-01
No Photo Available
Potamogeton praelongus white-stemmed pondweed Potamogetonaceae perennial rhizomatous herb (aquatic) Jul-Aug None None G5 S2 2B.3 IUCN_LC Marshes and swamps (lakes, deep water) 1800 3000 5905 9845 1994-01-01 Photo of Potamogeton praelongus
©2011 Sierra Pacific Industries
Physaria kingii ssp. bernardina San Bernardino Mountains bladderpod Brassicaceae perennial herb May-Jun FE None G5T1 S1 1B.1 SB_CalBG/RSABG Dam/Inundation, Development, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Lower montane coniferous forest, Pinyon and juniper woodland, Subalpine coniferous forest Carbonate (usually) 1850 2700 6070 8860 Yes 1974-01-01
No Photo Available
Petalonyx thurberi ssp. gilmanii Death Valley sandpaper-plant Loasaceae perennial evergreen shrub May-Sep None None G5T2 S2 1B.3 BLM_S; SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Desert dunes, Mojavean desert scrub 260 1445 855 4740 Yes 1974-01-01
No Photo Available
Peteria thompsoniae spine-noded milk vetch Fabaceae perennial herb May-Jun None None G4 S1 2B.1 ORV activity Mojavean desert scrub (alluvial fans, sandy) 800 825 2625 2705 1988-01-01
No Photo Available
Phacelia amabilis Saline Valley phacelia Hydrophyllaceae annual herb Apr-May None None GHQ SH 3.3 Riparian scrub Gravelly 500 700 1640 2295 Yes 1974-01-01
No Photo Available
Phacelia anelsonii Aven Nelson's phacelia Hydrophyllaceae annual herb Apr-May None None G3 S2 2B.3 SB_CalBG/RSABG Joshua tree "woodland", Pinyon and juniper woodland Carbonate, Gravelly (sometimes), Sandy (sometimes) 1200 1980 3935 6495 1980-01-01
No Photo Available
Phacelia argentea sand dune phacelia Hydrophyllaceae perennial herb Jun-Aug FT None G2 S1 1B.1 SB_BerrySB Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Coastal dunes 3 25 10 80 1974-01-01 Photo of Phacelia argentea
© 2012 Genevieve K Walden
Phacelia exilis Transverse Range phacelia Hydrophyllaceae annual herb May-Aug None None G4Q S4 4.3 SB_CalBG/RSABG; SB_SBBG Lower montane coniferous forest, Meadows and seeps, Pebble (Pavement) plain, Upper montane coniferous forest Gravelly (sometimes), Sandy (sometimes) 1100 2700 3610 8860 Yes 1994-01-01
No Photo Available
Phacelia mohavensis Mojave phacelia Hydrophyllaceae annual herb Apr-Aug None None G4Q S4 4.3 SB_CalBG/RSABG; SB_USDA Cismontane woodland, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland Gravelly (sometimes), Sandy (sometimes) 1400 2500 4595 8205 Yes 1994-01-01
No Photo Available
Phacelia pulchella var. gooddingii Goodding's phacelia Hydrophyllaceae annual herb Apr-Jun None None G5T3 S2 2B.2 Development, Non-native plant impacts, ORV activity Mojavean desert scrub (clay, often alkaline) 765 1000 2510 3280 1994-01-01
No Photo Available
Phacelia stellaris Brand's star phacelia Hydrophyllaceae annual herb Mar-Jun None None G1 S1 1B.1 SB_CalBG/RSABG Development, Erosion/runoff, Foot traffic/trampling, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV) Coastal dunes, Coastal scrub 1 400 5 1310 1994-01-01
No Photo Available
Phlox dispersa High Sierra phlox Polemoniaceae perennial stoloniferous herb Jul-Aug None None G3 S3 4.3 Alpine boulder and rock field (granitic) 3600 4200 11810 13780 Yes 1974-01-01
No Photo Available
Piperia candida white-flowered rein orchid Orchidaceae perennial herb (Mar-Apr)May-Sep None None G3? S3 1B.2 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Broadleafed upland forest, Lower montane coniferous forest, North Coast coniferous forest Serpentine (sometimes) 30 1310 100 4300 1994-01-01 Photo of Piperia candida
©2016 Barry Rice
Piperia yadonii Yadon's rein orchid Orchidaceae perennial herb (Feb)May-Aug FE None G1 S1 1B.1 Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Closed-cone coniferous forest, Coastal bluff scrub Sandy 10 510 35 1675 Yes 1994-01-01
No Photo Available
Plagiobothrys salsus desert popcornflower Boraginaceae annual herb May-Aug None None G2G3 S1 2B.2 SB_CalBG/RSABG Grazing Playas (alkaline) 700 700 2295 2295 1994-01-01
No Photo Available
Pyrrocoma lucida sticky pyrrocoma Asteraceae perennial herb Jul-Oct None None G3 S3 1B.2 BLM_S; SB_UCSC; USFS_S Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Other, Pollution, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Great Basin scrub, Lower montane coniferous forest, Meadows and seeps Alkaline, Clay 700 1950 2295 6400 Yes 1980-01-01
No Photo Available
Pyrrocoma racemosa var. congesta Del Norte pyrrocoma Asteraceae perennial herb Aug-Sep None None G5T4 S2 2B.3 Chaparral, Lower montane coniferous forest Serpentine 200 1000 655 3280 1980-01-01 Photo of Pyrrocoma racemosa var. congesta
©2008 Keir Morse
Pyrrocoma uniflora var. gossypina Bear Valley pyrrocoma Asteraceae perennial herb Jul-Sep None None G5T1 S1 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Wood cutting or brush clearing Meadows and seeps, Pebble (Pavement) plain 1600 2300 5250 7545 Yes 1980-01-01
No Photo Available
Phacelia inyoensis Inyo phacelia Hydrophyllaceae annual herb Apr-Aug None None G2 S2 1B.2 BLM_S; SB_SBBG; USFS_S Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Recreational use (non-ORV) Meadows and seeps (alkaline) 915 3200 3000 10500 Yes 1974-01-01
No Photo Available
Phacelia leonis Siskiyou phacelia Hydrophyllaceae annual herb Jun-Aug None None G3 S2? 1B.3 Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV) Meadows and seeps, Upper montane coniferous forest (openings) Serpentine (often) 1200 2000 3935 6560 1984-01-01 Photo of Phacelia leonis
©2019 Steve Matson
Phacelia monoensis Mono County phacelia Hydrophyllaceae annual herb May-Jul None None G3 S2 1B.1 BLM_S; USFS_S Erosion/runoff, Grazing, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Great Basin scrub, Pinyon and juniper woodland Clay, Roadsides (often) 1900 2900 6235 9515 1980-01-01
No Photo Available
Phacelia mustelina Death Valley round-leaved phacelia Hydrophyllaceae annual herb May-Jul None None G3 S2 1B.3 Non-native plant impacts Mojavean desert scrub, Pinyon and juniper woodland Carbonate (sometimes), Gravelly (sometimes), Rocky (sometimes), Volcanic (sometimes) 730 2620 2395 8595 1974-01-01
No Photo Available
Phacelia nashiana Charlotte's phacelia Hydrophyllaceae annual herb Mar-Jun None None G3 S3 1B.2 BLM_S; SB_CalBG/RSABG; SB_USDA Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland Granitic (usually), Sandy 600 2200 1970 7220 Yes 1974-01-01
No Photo Available
Phacelia novenmillensis Nine Mile Canyon phacelia Hydrophyllaceae annual herb (Feb)May-Jun None None G3 S3 1B.2 BLM_S; USFS_S Development, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Cismontane woodland, Pinyon and juniper woodland, Upper montane coniferous forest Gravelly (sometimes), Sandy (sometimes) 1645 2640 5395 8660 Yes 1974-01-01
No Photo Available
Phacelia orogenes mountain phacelia Hydrophyllaceae annual herb (May)Jun-Aug None None G3 S3 4.3 Meadows and seeps, Pinyon and juniper woodland, Subalpine coniferous forest Mesic 2185 3400 7170 11155 Yes 1974-01-01
No Photo Available
Phacelia parishii Parish's phacelia Hydrophyllaceae annual herb Apr-May(Jun-Jul) None None G2G3 S1 1B.1 BLM_S; SB_CalBG/RSABG Development, Military operations, ORV activity, Road/trail construction/maint. Mojavean desert scrub, Playas Alkaline (sometimes), Clay (sometimes) 540 1200 1770 3935 1980-01-01
No Photo Available
Phacelia phacelioides Mt. Diablo phacelia Hydrophyllaceae annual herb Apr-May None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Road/trail construction/maint. Chaparral, Cismontane woodland Rocky 500 1370 1640 4495 Yes 1974-01-01 Photo of Phacelia phacelioides
©2019 Steve Matson
Phacelia sericea var. ciliosa blue alpine phacelia Hydrophyllaceae perennial herb Jun-Aug None None G5T4T5 S3 2B.3 SB_UCSC Development, Grazing Great Basin scrub, Upper montane coniferous forest (rocky) 2100 2700 6890 8860 1994-01-01 Photo of Phacelia sericea var. ciliosa
©2019 John Doyen
Phacelia stebbinsii Stebbins' phacelia Hydrophyllaceae annual herb May-Jul None None G3 S3 1B.2 USFS_S Biocides, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Cismontane woodland, Lower montane coniferous forest, Meadows and seeps 610 2010 2000 6595 Yes 1974-01-01
No Photo Available
Phacelia keckii Santiago Peak phacelia Hydrophyllaceae annual herb May-Jul None None G1 S1 1B.3 SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Closed-cone coniferous forest 545 1600 1790 5250 Yes 1980-01-01
No Photo Available
Phaseolus filiformis slender-stem bean Fabaceae annual herb Apr None None G5 S1 2B.1 IUCN_LC Sonoran desert scrub 125 125 410 410 1984-01-01
No Photo Available
Phlox muscoides squarestem phlox Polemoniaceae perennial herb (May)Jun-Aug None None G4G5 S3 2B.3 Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Alpine boulder and rock field, Great Basin scrub, Subalpine coniferous forest Gravelly (sometimes), Rocky (sometimes) 1280 2700 4200 8860 1984-01-01 Photo of Phlox muscoides
© 2018 John Doyen
Palafoxia arida var. gigantea giant spanish-needle Asteraceae annual/perennial herb Feb-May None None G5T3? S2 1B.3 BLM_S; SB_CalBG/RSABG ORV activity Desert dunes 15 100 50 330 1974-01-01
No Photo Available
Panicum acuminatum var. thermale Geysers panicum Poaceae annual/perennial herb Jun-Aug None CE G5T2Q S2 1B.2 SB_UCSC Development, Erosion/runoff, Feral pigs, Mining, Non-native plant impacts, Other, Road/trail construction/maint. Closed-cone coniferous forest, Riparian forest, Valley and foothill grassland Streambanks (sometimes) 305 2470 1000 8105 Yes 1974-01-01 Photo of Panicum acuminatum var. thermale
© Rick York and CNPS
Paronychia ahartii Ahart's paronychia Caryophyllaceae annual herb Feb-Jun None None G3 S3 1B.1 BLM_S Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Mining, ORV activity, Other, Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland, Vernal pools 30 510 100 1675 Yes 1988-01-01 Photo of Paronychia ahartii
© 2004 Carol W. Witham
Pedicularis contorta curved-beak lousewort Orobanchaceae perennial herb Jul-Aug None None G5 S3 4.3 Bogs and fens, Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic 1600 2400 5250 7875 1974-01-01 Photo of Pedicularis contorta
©2019 John Doyen
Pedicularis crenulata scalloped-leaved lousewort Orobanchaceae perennial herb Jun-Jul None None G4 S1 2B.2 Grazing Meadows and seeps (mesic) 2100 2300 6890 7545 1974-01-01
No Photo Available
Pedicularis dudleyi Dudley's lousewort Orobanchaceae perennial herb Apr-Jun None CR G2 S2 1B.2 SB_CalBG/RSABG; SB_UCSC; USFS_S Development, Disease, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Insufficient population/stand size, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Cismontane woodland, North Coast coniferous forest, Valley and foothill grassland 60 900 195 2955 Yes 1974-01-01
No Photo Available
Pedicularis bracteosa var. flavida yellowish lousewort Orobanchaceae perennial herb Jul-Aug None None G5T4 S3 4.3 Upper montane coniferous forest (mesic) 1200 2300 3935 7545 1974-01-01
No Photo Available
Pedicularis howellii Howell's lousewort Orobanchaceae perennial herb Jun-Aug None None G4 S3 4.3 USFS_S Upper montane coniferous forest (often serpentinite) 1500 1900 4920 6235 1974-01-01 Photo of Pedicularis howellii
©2015 John Doyen
Pellaea truncata spiny cliff-brake Pteridaceae perennial rhizomatous herb Apr-Jun None None G5 S3 2B.3 Development, Mining, ORV activity Pinyon and juniper woodland (granitic, rocky, volcanic) 1200 2150 3935 7055 1980-01-01
No Photo Available
Penstemon albomarginatus white-margined beardtongue Plantaginaceae perennial herb Mar-May(Jun) None None G2 S1 1B.1 BLM_S; SB_CalBG/RSABG Development, Erosion/runoff, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Desert dunes (stabilized), Mojavean desert scrub (sandy) 620 1065 2035 3495 1988-01-01 Photo of Penstemon albomarginatus
Michelle Cloud-Hughes 2010
Penstemon barnebyi Barneby's beardtongue Plantaginaceae perennial herb May None None G3G4 S1 2B.1 Great Basin scrub, Pinyon and juniper woodland Carbonate, Gravelly 1500 2500 4920 8205 1988-01-01 Photo of Penstemon barnebyi
Christopher L. Christie 2019
Penstemon calcareus limestone beardtongue Plantaginaceae perennial herb Apr-May None None G3? S3? 1B.3 Foot traffic/trampling, Non-native plant impacts, Other Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland Carbonate, Rocky 1065 2040 3495 6695 1974-01-01 Photo of Penstemon calcareus
Steve Matson 2017
Penstemon californicus California beardtongue Plantaginaceae perennial herb May-Jun(Aug) None None G3 S2 1B.2 SB_CalBG/RSABG; SB_USDA; USFS_S Development, Foot traffic/trampling, Grazing, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Lower montane coniferous forest, Pinyon and juniper woodland Sandy 1170 2300 3840 7545 1974-01-01 Photo of Penstemon californicus
Justin M. Wood 2009
Penstemon cinereus ashy-gray beardtongue Plantaginaceae perennial herb May-Jul(Aug) None None G4Q S4 4.3 SB_CalBG/RSABG Great Basin scrub, Pinyon and juniper woodland Gravelly, Volcanic 1065 1950 3495 6400 1974-01-01 Photo of Penstemon cinereus
Dean Wm. Taylor 1990
Penstemon cinicola ash beardtongue Plantaginaceae perennial herb Jun-Aug(Sep) None None G4 S3 4.3 Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Rocky (sometimes), Sandy (sometimes), Volcanic 730 2685 2395 8810 1974-01-01 Photo of Penstemon cinicola
Keir Morse 2010
Penstemon clevelandii var. connatus San Jacinto beardtongue Plantaginaceae perennial herb Mar-May None None G5T4 S3 4.3 SB_CalBG/RSABG Chaparral, Pinyon and juniper woodland, Sonoran desert scrub Rocky 400 1500 1310 4920 1984-01-01 Photo of Penstemon clevelandii var. connatus
Keir Morse 2015
Penstemon filiformis thread-leaved beardtongue Plantaginaceae perennial herb May-Aug(Sep) None None G4 S4 4.2 SB_UCSC Development, Erosion/runoff, Grazing, Improper burning regime, Insufficient population/stand size, Logging, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Lower montane coniferous forest Rocky, Serpentine (often) 450 1875 1475 6150 Yes 1974-01-01 Photo of Penstemon filiformis
Steve Matson (2015)
Penstemon fruticiformis var. amargosae Amargosa beardtongue Plantaginaceae perennial herb Apr-Jun None None G4T3 S2 1B.3 BLM_S; SB_CalBG/RSABG Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Vandalism/dumping/litter Mojavean desert scrub 850 1400 2790 4595 1980-01-01 Photo of Penstemon fruticiformis var. amargosae
Steve Matson 2017
Penstemon newberryi var. sonomensis Sonoma beardtongue Plantaginaceae perennial herb Apr-Aug None None G4T3 S3 1B.3 BLM_S Foot traffic/trampling, Recreational use (non-ORV), Road/trail construction/maint. Chaparral (rocky) 700 1370 2295 4495 Yes 1988-01-01 Photo of Penstemon newberryi var. sonomensis
Jason Matthias Mills 2020
Penstemon papillatus Inyo beardtongue Plantaginaceae perennial herb Jun-Jul None None G3 S3 4.3 Pinyon and juniper woodland, Subalpine coniferous forest Granitic, Rocky 2000 3000 6560 9845 Yes 1974-01-01
No Photo Available
Penstemon personatus closed-throated beardtongue Plantaginaceae perennial herb Jun-Sep(Oct) None None G2 S2 1B.2 SB_UCSC; USFS_S Biocides, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Upper montane coniferous forest 1065 2120 3495 6955 Yes 1974-01-01
No Photo Available
Penstemon rattanii var. kleei Santa Cruz Mountains beardtongue Plantaginaceae perennial herb (Mar)May-Jun None None G4T2 S2 1B.2 SB_UCSC Development, Foot traffic/trampling, Insufficient population/stand size, Other Chaparral, Lower montane coniferous forest, North Coast coniferous forest 400 1100 1310 3610 Yes 1984-01-01
No Photo Available
Penstemon heterodoxus var. shastensis Shasta beardtongue Plantaginaceae perennial herb May-Sep None None G5T3 S3 4.3 SB_CalBG/RSABG Broadleafed upland forest, Chaparral, Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Clay, Mesic (often), Volcanic 1100 2400 3610 7875 Yes 1974-01-01 Photo of Penstemon heterodoxus var. shastensis
Sierra Pacific Industries (2009)
Penstemon stephensii Stephens' beardtongue Plantaginaceae perennial herb Apr-Jun None None G3? S3? 1B.3 BLM_S; SB_CalBG/RSABG Mining, Non-native animal impacts, Other, Recreational use (non-ORV) Mojavean desert scrub, Pinyon and juniper woodland Carbonate (usually), Rocky 1160 1850 3805 6070 Yes 1974-01-01
No Photo Available
Penstemon thurberi Thurber's beardtongue Plantaginaceae perennial herb May-Jul None None G5 S3 4.2 SB_CalBG/RSABG Chaparral, Joshua tree "woodland", Pinyon and juniper woodland, Sonoran desert scrub 500 1220 1640 4005 1988-01-01
No Photo Available
Penstemon tracyi Tracy's beardtongue Plantaginaceae perennial herb Jun-Aug None None G2 S2 1B.3 SB_USDA; USFS_S Other, Recreational use (non-ORV), Road/trail construction/maint. Upper montane coniferous forest (rocky) 1980 2210 6495 7250 Yes 1974-01-01 Photo of Penstemon tracyi
©2005 Dianne Fristrom
Pentachaeta bellidiflora white-rayed pentachaeta Asteraceae annual herb Mar-May FE CE G1 S1 1B.1 SB_UCBG Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter Cismontane woodland, Valley and foothill grassland (often serpentinite) 35 620 115 2035 Yes 1974-01-01
No Photo Available
Pentachaeta exilis ssp. aeolica San Benito pentachaeta Asteraceae annual herb Mar-May None None G5T2 S2 1B.2 BLM_S; SB_SBBG; USFS_S Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Valley and foothill grassland 480 855 1575 2805 Yes 1980-01-01
No Photo Available
Pentachaeta lyonii Lyon's pentachaeta Asteraceae annual herb (Feb)Mar-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Improper burning regime, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral (openings), Coastal scrub, Valley and foothill grassland Clay, Rocky 30 690 100 2265 Yes 1974-01-01
No Photo Available
Potentilla concinna var. proxima early cinquefoil Rosaceae perennial herb Jun-Jul None None G5?T4T5 S1 2B.3 Alpine boulder and rock field, Meadows and seeps (rocky) 2995 3170 9825 10400 1988-01-01
No Photo Available
Potentilla hickmanii Hickman's cinquefoil Rosaceae perennial herb Apr-Aug FE CE G1 S1 1B.1 SB_UCBG Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV) Closed-cone coniferous forest, Coastal bluff scrub, Marshes and swamps (freshwater), Meadows and seeps (vernally mesic) 10 149 35 490 Yes 1974-01-01
No Photo Available
Potentilla multijuga Ballona cinquefoil Rosaceae perennial herb Jun-Aug None None GX SX 1A Development Meadows and seeps (brackish) 0 2 0 5 Yes 1974-01-01
No Photo Available
Proboscidea althaeifolia desert unicorn-plant Martyniaceae perennial herb May-Sep(Oct) None None G5 S4 4.3 SB_CalBG/RSABG Sonoran desert scrub Flats, Roadsides (sometimes), Sandy, Slopes, Washes 85 1000 280 3280 1980-01-01
No Photo Available
Prunus fasciculata var. punctata sand almond Rosaceae perennial deciduous shrub Mar-Apr None None G5T4 S4 4.3 SB_CalBG/RSABG Chaparral (maritime), Cismontane woodland, Coastal dunes, Coastal scrub Sandy 15 200 50 655 Yes 1974-01-01
No Photo Available
Pseudobahia bahiifolia Hartweg's golden sunburst Asteraceae annual herb Mar-Apr FE CE G1 S1 1B.1 SB_CalBG/RSABG Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Cismontane woodland, Valley and foothill grassland Acidic (often), Clay 15 150 50 490 Yes 1974-01-01
No Photo Available
Plagiobothrys mollis var. vestitus Petaluma popcornflower Boraginaceae perennial herb Jun-Jul None None G4?TX SX 1A Agriculture Marshes and swamps (coastal salt), Valley and foothill grassland (mesic) 10 50 35 165 Yes 1980-01-01
No Photo Available
Plagiobothrys myosotoides CBR 1984-01-01
No Photo Available
Plagiobothrys strictus Calistoga popcornflower Boraginaceae annual herb Mar-Jun FE CT G1 S1 1B.1 SB_UCBG Development, Other, Road/trail construction/maint. Meadows and seeps, Valley and foothill grassland, Vernal pools Alkaline 90 160 295 525 Yes 1974-01-01
No Photo Available
Plagiobothrys uncinatus hooked popcornflower Boraginaceae annual herb Apr-May None None G2 S2 1B.2 USFS_S Feral pigs, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Chaparral (sandy), Cismontane woodland, Valley and foothill grassland 300 760 985 2495 Yes 1974-01-01
No Photo Available
Platystemon californicus var. ciliatus Santa Barbara Island cream cups Papaveraceae annual herb Feb-May None None G5T1Q S1 1B.2 Coastal bluff scrub 50 50 165 165 Yes 1984-01-01
No Photo Available
Pleuropogon californicus var. davyi Davy's semaphore grass Poaceae perennial rhizomatous herb Mar-Jun None None G5T3 S3 4.3 Cismontane woodland, Lower montane coniferous forest, Meadows and seeps 150 610 490 2000 Yes 1974-01-01
No Photo Available
Perideridia bacigalupii Bacigalupi's yampah Apiaceae perennial herb Jun-Aug None None G3 S3 4.2 Chaparral, Lower montane coniferous forest Serpentine 450 1255 1475 4120 Yes 1974-01-01
No Photo Available
Perideridia gairdneri ssp. gairdneri Gairdner's yampah Apiaceae perennial herb Jun-Oct None None G5T3T4 S3S4 4.2 SB_SBBG; SB_UCSC Broadleafed upland forest, Chaparral, Coastal prairie, Valley and foothill grassland, Vernal pools Vernally Mesic 0 610 0 2000 Yes 1974-01-01 Photo of Perideridia gairdneri ssp. gairdneri
©2007 Neal Kramer
Perideridia leptocarpa narrow-seeded yampah Apiaceae perennial herb Jun-Aug None None G3Q S3 4.3 Broadleafed upland forest, Cismontane woodland, Lower montane coniferous forest Serpentine (usually) 425 1585 1395 5200 1974-01-01 Photo of Perideridia leptocarpa
©2015 Dana York
Perideridia parishii ssp. parishii Parish's yampah Apiaceae perennial herb Jun-Aug None None G4T3T4 S2 2B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest 1465 3000 4805 9845 1974-01-01
No Photo Available
Perideridia pringlei adobe yampah Apiaceae perennial herb Apr-Jun(Jul) None None G4 S4 4.3 SB_CalBG/RSABG Chaparral, Cismontane woodland, Coastal scrub, Pinyon and juniper woodland Clay (often), Serpentine 300 1800 985 5905 Yes 1974-01-01
No Photo Available
Phacelia ciliata var. opaca Merced phacelia Hydrophyllaceae annual herb Feb-May None None G5TH SH 3.2 Agriculture Valley and foothill grassland (clay) Alkaline (sometimes) 60 150 195 490 Yes 1980-01-01
No Photo Available
Pelazoneuron puberulum var. sonorense Sonoran maiden fern Thelypteridaceae perennial rhizomatous herb Jan-Sep None None G5T3 S2 2B.2 USFS_S Non-native plant impacts, Over-collecting/poaching, Surface water diversion Meadows and seeps (seeps, streams) 50 610 165 2000 1994-01-01
No Photo Available
Pyrola chlorantha CBR
No Photo Available
Pyrrocoma racemosa var. pinetorum pine pyrrocoma Asteraceae perennial herb Jul-Sep None None G5T3 S3 4.2 Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest 600 1700 1970 5580 Yes 2001-01-01
No Photo Available
Phacelia cinerea CBR
No Photo Available
Phacelia cookei Cooke's phacelia Hydrophyllaceae annual herb Jun-Jul None None G1 S1 1B.1 SB_BerrySB; USFS_S Biocides, Non-native plant impacts, Other, Road/trail construction/maint. Great Basin scrub, Lower montane coniferous forest Sandy, Volcanic 1095 1700 3595 5580 Yes 1974-01-01 Photo of Phacelia cookei
© 1992 Dean Wm. Taylor
Phacelia floribunda many-flowered phacelia Hydrophyllaceae annual herb Mar-May None None G2 S2 1B.2 SB_CRES Military operations Coastal scrub 15 500 50 1640 1974-01-01
No Photo Available
Phacelia greenei Scott Valley phacelia Hydrophyllaceae annual herb Apr-Jun None None G2 S2 1B.2 BLM_S; USFS_S Biocides, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Closed-cone coniferous forest, Lower montane coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest Serpentine 800 2440 2625 8005 Yes 1974-01-01 Photo of Phacelia greenei
© 2011 Steve Matson
Phacelia insularis var. continentis North Coast phacelia Hydrophyllaceae annual herb Mar-May None None G2T2 S2 1B.2 SB_UCBG 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 Rocky (sometimes), Sandy 10 170 35 560 Yes 1980-01-01
No Photo Available
Phacelia insularis var. insularis northern Channel Islands phacelia Hydrophyllaceae annual herb Feb-Apr FE None G2T1 S1 1B.2 SB_SBBG Non-native plant impacts Coastal dunes, Valley and foothill grassland Sandy 0 215 0 705 Yes 1980-01-01
No Photo Available
Phacelia inundata playa phacelia Hydrophyllaceae annual herb May-Aug(Sep) None None G2 S2 1B.3 BLM_S; SB_UCSC; USFS_S Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity Great Basin scrub, Lower montane coniferous forest, Playas Alkaline 1350 2000 4430 6560 1974-01-01 Photo of Phacelia inundata
©2008 F. Gauna
Phlox dolichantha Big Bear Valley phlox Polemoniaceae perennial herb May-Jul None None G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Pebble (Pavement) plain, Upper montane coniferous forest (openings) 1830 2970 6005 9745 Yes 1974-01-01
No Photo Available
Phlox hirsuta Yreka phlox Polemoniaceae perennial herb Apr-Jun FE CE G1 S1 1B.2 SB_CalBG/RSABG Development, Grazing, Logging, Non-native plant impacts, ORV activity, Over-collecting/poaching, Road/trail construction/maint., Vandalism/dumping/litter Lower montane coniferous forest, Upper montane coniferous forest Serpentine, Talus 820 1500 2690 4920 Yes 1980-01-01 Photo of Phlox hirsuta
©2015 John Doyen
Pholisma sonorae sand food Lennoaceae perennial herb (parasitic) (Mar)Apr-Jun None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG Agriculture, Military operations, Non-native plant impacts, ORV activity, Other, Vandalism/dumping/litter Desert dunes, Sonoran desert scrub (sandy) 0 200 0 655 1974-01-01
No Photo Available
Pholistoma auritum var. arizonicum Arizona pholistoma Hydrophyllaceae annual herb Mar None None G5T4? S3 2B.3 SB_CalBG/RSABG; SB_USDA Foot traffic/trampling, ORV activity, Other, Vandalism/dumping/litter Mojavean desert scrub 275 835 900 2740 1984-01-01
No Photo Available
Physalis lobata lobed ground-cherry Solanaceae perennial herb (May)Sep-Jan None None G5 S1S2 2B.3 IUCN_LC; SB_CalBG/RSABG Development, Mining, Non-native plant impacts, ORV activity, Road/trail construction/maint. Mojavean desert scrub (decomposed granitic), Playas 500 800 1640 2625 1988-01-01 Photo of Physalis lobata
© 2012 Duncan S Bell
Picea engelmannii Engelmann spruce Pinaceae perennial evergreen tree None None G5 S2 2B.2 IUCN_LC Logging Upper montane coniferous forest 1065 2135 3495 7005 1974-01-01 Photo of Picea engelmannii
© 2021 Scot Loring
Pilostyles thurberi Thurber's pilostyles Apodanthaceae perennial herb (parasitic) Dec-Apr None None G5 S4 4.3 Military operations Sonoran desert scrub 0 365 0 1200 1974-01-01
No Photo Available
Pinguicula macroceras horned butterwort Lentibulariaceae perennial herb (carnivorous) Apr-Jun None None G4 S2 2B.2 IUCN_LC; SB_CalBG/RSABG; SB_UCSC Erosion/runoff, Foot traffic/trampling, Mining, Recreational use (non-ORV), Road/trail construction/maint. Bogs and fens (serpentinite) 40 1920 130 6300 1974-01-01 Photo of Pinguicula macroceras
©2009 Barry Rice
Pinus contorta ssp. bolanderi Bolander's beach pine Pinaceae perennial evergreen tree None None G5T2 S2 1B.2 SB_UCSC Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Grazing, Landfill, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Closed-cone coniferous forest (podzol-like soil) 75 250 245 820 Yes 1984-01-01
No Photo Available
Pinus edulis two-needle pinyon pine Pinaceae perennial evergreen tree None None G5 S3 3.3 IUCN_LC Lower montane coniferous forest, Pinyon and juniper woodland 1300 2700 4265 8860 1974-01-01
No Photo Available
Pinus longaeva bristlecone pine Pinaceae perennial evergreen tree None None G4 S3S4 4.3 IUCN_LC; SB_CalBG/RSABG; SB_KewBG; SB_USDA Subalpine coniferous forest (carbonate) 2200 3700 7220 12140 1984-01-01
No Photo Available
Pinus radiata Monterey pine Pinaceae perennial evergreen tree None None G1 S1 1B.1 IUCN_EN; SB_CalBG/RSABG; SB_UCSC Development, Disease, Hybridization, Improper burning regime, Logging, Other Cismontane woodland, Closed-cone coniferous forest 25 185 80 605 1974-01-01
No Photo Available
Pinus torreyana ssp. torreyana Torrey pine Pinaceae perennial evergreen tree None None G1T1 S1 1B.2 IUCN_CR; SB_CalBG/RSABG; SB_CRES Development, Disease, Erosion/runoff, Non-native plant impacts, Other, Road/trail construction/maint. Chaparral, Closed-cone coniferous forest Sandstone 30 160 100 525 Yes 1974-01-01
No Photo Available
Piperia michaelii Michael's rein orchid Orchidaceae perennial herb Apr-Aug None None G3 S3 4.2 SB_SBBG Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal bluff scrub, Coastal scrub, Lower montane coniferous forest 3 915 10 3000 Yes 1984-01-01
No Photo Available
Pityopus californicus California pinefoot Ericaceae perennial herb (achlorophyllous) (Mar-Apr)May-Aug None None G4G5 S4 4.2 Broadleafed upland forest, Lower montane coniferous forest, North Coast coniferous forest, Upper montane coniferous forest Mesic 15 2225 50 7300 1974-01-01 Photo of Pityopus californicus
©2009 Barry Rice
Plagiobothrys chorisianus var. chorisianus Choris' popcornflower Boraginaceae annual herb Mar-Jun None None G3T1Q S1 1B.2 BLM_S; SB_UCSC Altered flood/tidal/hydrologic regime, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Coastal prairie, Coastal scrub Mesic 3 160 10 525 Yes 1984-01-01
No Photo Available
Plagiobothrys diffusus San Francisco popcornflower Boraginaceae annual herb Mar-Jun None CE G1Q S1 1B.1 SB_UCSC Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Grazing, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Coastal prairie, Valley and foothill grassland 60 360 195 1180 Yes 1974-01-01
No Photo Available
Plagiobothrys glaber hairless popcornflower Boraginaceae annual herb Mar-May None None GX SX 1A Agriculture, Development Marshes and swamps (coastal salt), Meadows and seeps (alkaline) 15 180 50 590 Yes 1974-01-01
No Photo Available
Plagiobothrys glyptocarpus var. modestus Cedar Crest popcornflower Boraginaceae annual herb Apr-Jun None None G3THQ SH 3 Cismontane woodland, Valley and foothill grassland (mesic) 870 870 2855 2855 Yes 1980-01-01
No Photo Available
Plagiobothrys hystriculus bearded popcornflower Boraginaceae annual herb Apr-May None None G2 S2 1B.1 Development, Disking, Non-native plant impacts, Other, Road/trail construction/maint. Valley and foothill grassland (mesic), Vernal pools (margins) 0 274 0 900 Yes 1974-01-01
No Photo Available
Plagiobothrys lithocaryus Mayacamas popcornflower Boraginaceae annual herb Apr-May None None GX SX 1A Chaparral, Cismontane woodland, Valley and foothill grassland Mesic 300 450 985 1475 Yes 1974-01-01
No Photo Available
Pleuropogon hooverianus North Coast semaphore grass Poaceae perennial rhizomatous herb Apr-Jun None CT G2 S2 1B.1 SB_BerrySB; SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Insufficient population/stand size, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Meadows and seeps, North Coast coniferous forest Mesic, Openings 10 671 35 2200 Yes 1974-01-01
No Photo Available
Pleuropogon refractus nodding semaphore grass Poaceae perennial rhizomatous herb (Feb-Mar)Apr-Aug None None G4 S4 4.2 IUCN_LC Lower montane coniferous forest, Meadows and seeps, North Coast coniferous forest, Riparian forest Mesic 0 1600 0 5250 1974-01-01 Photo of Pleuropogon refractus
©2004 Dean Wm. Taylor
Poa atropurpurea San Bernardino blue grass Poaceae perennial rhizomatous herb (Apr)May-Jul(Aug) FE None G2 S2 1B.2 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter, Wood cutting or brush clearing Meadows and seeps (mesic) 1360 2455 4460 8055 Yes 1974-01-01
No Photo Available
Poa napensis Napa blue grass Poaceae perennial herb May-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing, ORV activity, Other, Road/trail construction/maint., Surface water diversion Meadows and seeps, Valley and foothill grassland Alkaline 100 200 330 655 Yes 1974-01-01
No Photo Available
Poa abbreviata ssp. pattersonii Patterson's blue grass Poaceae perennial herb Jul None None G5T5 S1 2B.3 Alpine boulder and rock field 3300 3660 10825 12010 1988-01-01
No Photo Available
Poa piperi Piper's blue grass Poaceae perennial rhizomatous herb Apr-May None None G4 S3 4.3 Chaparral, Lower montane coniferous forest Rocky, Serpentine 100 1460 330 4790 1974-01-01 Photo of Poa piperi
© 2021 Scot Loring
Polygonum bidwelliae Bidwell's knotweed Polygonaceae annual herb Apr-Jul None None G4 S4 4.3 Chaparral, Cismontane woodland, Valley and foothill grassland Volcanic 60 1200 195 3935 Yes 1974-01-01 Photo of Polygonum bidwelliae
©2020 Neal Kramer
Polygonum marinense Marin knotweed Polygonaceae annual herb (Apr)May-Aug(Oct) None None G2Q S2 3.1 Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Vandalism/dumping/litter Marshes and swamps (brackish, coastal salt) 0 10 0 35 Yes 1974-01-01
No Photo Available
Polygonum polygaloides ssp. esotericum Modoc County knotweed Polygonaceae annual herb May-Sep None None G4G5T3 S3 1B.3 BLM_S; SB_UCSC Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, Other, Road/trail construction/maint. Great Basin scrub, Lower montane coniferous forest, Meadows and seeps, Vernal pools Mesic 885 1690 2905 5545 1974-01-01 Photo of Polygonum polygaloides ssp. esotericum
©2013 Jake Ruygt
Polystichum kruckebergii Kruckeberg's sword fern Dryopteridaceae perennial rhizomatous herb Jun-Aug None None G4 S4 4.3 Subalpine coniferous forest, Upper montane coniferous forest Rocky 2100 3200 6890 10500 1980-01-01 Photo of Polystichum kruckebergii
© 2021 Scot Loring
Polystichum lonchitis Jun-Sep CBR Subalpine coniferous forest, Upper montane coniferous forest Photo of Polystichum lonchitis
©2019 Matt C. Berger
Populus angustifolia narrow-leaved cottonwood Salicaceae perennial deciduous tree Mar-Apr None None G5 S2 2B.2 Altered flood/tidal/hydrologic regime, Other Riparian forest 1200 1800 3935 5905 1980-01-01
No Photo Available
Portulaca halimoides desert portulaca Portulacaceae annual herb Sep None None G5 S3 4.2 SB_CalBG/RSABG Joshua tree "woodland" (sandy) 1000 1200 3280 3935 1984-01-01
No Photo Available
Pseudobahia peirsonii San Joaquin adobe sunburst Asteraceae annual herb Feb-Apr FT CE G1 S1 1B.1 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion Cismontane woodland, Valley and foothill grassland Adobe, Clay 90 800 295 2625 Yes 1974-01-01
No Photo Available
Psorothamnus arborescens var. arborescens Mojave indigo-bush Fabaceae perennial deciduous shrub Apr-May None None G5T4 S4 4.3 SB_USDA Mojavean desert scrub, Riparian scrub 400 1185 1310 3890 1974-01-01
No Photo Available
Puccinellia parishii Parish's alkali grass Poaceae annual herb Apr-May None None G2G3 S1 1B.1 Altered flood/tidal/hydrologic regime, Grazing, Groundwater pumping, Road/trail construction/maint. Meadows and seeps (alkaline springs, seeps) 700 1000 2295 3280 1974-01-01
No Photo Available
Puccinellia pumila dwarf alkali grass Poaceae perennial herb Jul None None G5 SH 2B.2 Marshes and swamps (coastal salt) 1 10 5 35 1988-01-01
No Photo Available
Packera bernardina San Bernardino ragwort Asteraceae perennial herb May-Jul None None G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Meadows and seeps (mesic, sometimes alkaline), Pebble (Pavement) plain, Upper montane coniferous forest 1800 2300 5905 7545 Yes 1974-01-01
No Photo Available
Packera eurycephala var. lewisrosei Lewis Rose's ragwort Asteraceae perennial herb Mar-Jul(Aug-Sep) None None G4T2 S2 1B.2 BLM_S; SB_UCSC; USFS_S Disking, Erosion/runoff, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Cismontane woodland, Lower montane coniferous forest Serpentine 274 1890 900 6200 Yes 1984-01-01
No Photo Available
Packera ganderi Gander's ragwort Asteraceae perennial herb Apr-Jun None CR G2 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S Agriculture, Development, Erosion/runoff, Foot traffic/trampling, Mining, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint. Chaparral (burned areas, gabbroic outcrops) 400 1200 1310 3935 Yes 1974-01-01
No Photo Available
Packera ionophylla Tehachapi ragwort Asteraceae perennial herb Jun-Jul None None G4 S4 4.3 SB_CalBG/RSABG Lower montane coniferous forest, Upper montane coniferous forest Granitic, Rocky 1500 2700 4920 8860 Yes 1974-01-01
No Photo Available
Packera layneae Layne's ragwort Asteraceae perennial herb Apr-Aug FT CR G2 S2 1B.2 SB_CalBG/RSABG; SB_UCBG; SB_UCSC Agriculture, Biocides, Dam/Inundation, Development, Disking, Erosion/runoff, Grazing, Landfill, Logging, Mining, Non-native plant impacts, ORV activity, Other, Pollution, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland Gabbroic (sometimes), Rocky, Serpentine (sometimes) 200 1085 655 3560 Yes 1974-01-01
No Photo Available
Packera macounii Siskiyou Mountains ragwort Asteraceae perennial herb Jun-Jul None None G5? S3 4.3 Chaparral, Lower montane coniferous forest Disturbed areas (often), Serpentine (sometimes) 400 915 1310 3000 1984-01-01 Photo of Packera macounii
©2015 John Doyen
Pedicularis centranthera Great Basin lousewort Orobanchaceae perennial herb Apr-Jun None None G4 S2 2B.3 BLM_S Development, Grazing, Other Great Basin scrub (alluvial) 1300 1500 4265 4920 1994-01-01
No Photo Available
Poa abbreviata ssp. marshii Marsh's blue grass Poaceae perennial herb Jun None None G5T2 S1 2B.3 Alpine boulder and rock field 3660 3660 12010 12010 1994-01-01
No Photo Available
Potamogeton robbinsii Robbins' pondweed Potamogetonaceae perennial rhizomatous herb (aquatic) Jul-Aug None None G5 S3 2B.3 IUCN_LC Altered flood/tidal/hydrologic regime, Erosion/runoff, Non-native plant impacts, Other, Recreational use (non-ORV) Marshes and swamps (lakes, deep water) 1530 3300 5020 10825 1994-01-01 Photo of Potamogeton robbinsii
©2014 Dana York
Potamogeton zosteriformis eel-grass pondweed Potamogetonaceae annual herb (aquatic) Jun-Jul None None G5 S3 2B.2 Altered flood/tidal/hydrologic regime, Degraded water quality, Non-native plant impacts, Recreational use (non-ORV) Marshes and swamps (freshwater) 0 1860 0 6105 1994-01-01
No Photo Available
Potentilla cristae crested potentilla Rosaceae perennial herb (Jul)Aug-Sep None None G2 S2 1B.3 ORV activity Alpine boulder and rock field, Subalpine coniferous forest Gravelly (sometimes), Mesic (sometimes), Rocky (sometimes), Seeps (often), Serpentine (often) 1800 2800 5905 9185 Yes 1994-01-01 Photo of Potentilla cristae
©2011 Steve Matson
Potentilla morefieldii Morefield's cinquefoil Rosaceae perennial herb Jul-Sep None None G2 S2 1B.3 SB_CalBG/RSABG; USFS_S Erosion/runoff, Foot traffic/trampling, Other, Road/trail construction/maint. Alpine boulder and rock field (carbonate) 3265 4000 10710 13125 Yes 1994-01-01
No Photo Available
Potentilla newberryi Newberry's cinquefoil Rosaceae perennial herb May-Aug None None G3G4 S2S3 2B.3 Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Marshes and swamps (drying margins), Vernal pools 1300 2200 4265 7220 1994-01-01 Photo of Potentilla newberryi
© 2006 Keir Morse
Potentilla rimicola cliff cinquefoil Rosaceae perennial herb Jul-Sep None None G2 S1 2B.3 SB_CalBG/RSABG; USFS_S Foot traffic/trampling Subalpine coniferous forest, Upper montane coniferous forest Granitic, Rocky 2400 2800 7875 9185 1994-01-01
No Photo Available
Psilocarphus brevissimus var. multiflorus Delta woolly-marbles Asteraceae annual herb May-Jun None None G4T3 S3 4.2 Vernal pools 10 500 35 1640 Yes 1994-01-01
No Photo Available
Psilocarphus elatior tall woolly-marbles Asteraceae annual herb May-Aug None None G4 S2S3 4.3 Meadows and seeps, Valley and foothill grassland, Vernal pools Vernally Mesic 915 1610 3000 5280 1994-01-01
No Photo Available
Puccinellia howellii Howell's alkali grass Poaceae perennial herb Apr-Jun None None G1 S1 1B.1 SB_BerrySB Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Meadows and seeps (mineralized) 490 490 1610 1610 Yes 1994-01-01 Photo of Puccinellia howellii
©1991 Dean Wm. Taylor
Potentilla basaltica Black Rock potentilla Rosaceae perennial herb May-Jun(Jul) None None G1 S1 1B.3 BLM_S; SB_UCSC; USFS_S Foot traffic/trampling, Grazing, Other, Road/trail construction/maint. Meadows and seeps (alkaline, sandy, volcanic) 1360 1555 4460 5100 1994-01-01
No Photo Available
Pinus torreyana ssp. insularis Santa Rosa Island Torrey pine Pinaceae perennial evergreen tree None None G1T1 S1 1B.2 IUCN_VU; SB_CalBG/RSABG; SB_USDA Closed-cone coniferous forest 75 150 245 490 Yes 1980-01-01
No Photo Available
Parkinsonia microphylla little-leaved palo verde Fabaceae perennial deciduous shrub Apr-May None None G5 S3 4.3 SB_USDA Mojavean desert scrub (gravelly, rocky) 45 1070 150 3510 2001-01-01
No Photo Available
Primula pauciflora beautiful shootingstar Primulaceae perennial herb Apr-Jun None None G5 S3 4.2 Great Basin scrub, Meadows and seeps, Pinyon and juniper woodland Mesic 1000 2380 3280 7810 2001-01-01 Photo of Primula pauciflora
© 2008 Steve Matson
Parnassia cirrata var. cirrata San Bernardino grass-of-Parnassus Parnassiaceae perennial herb Aug-Sep None None G5T2 S2 1B.3 SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Mining, Recreational use (non-ORV) Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic, Streambanks 1250 2440 4100 8005 Yes 2001-01-01
No Photo Available
Pediomelum castoreum Beaver Dam breadroot Fabaceae perennial herb Apr-May None None G3 S2 1B.2 BLM_S; SB_CalBG/RSABG Joshua tree "woodland", Mojavean desert scrub Roadsides, Sandy, Washes 610 1525 2000 5005 2001-01-01
No Photo Available
Penstemon bicolor ssp. roseus rosy two-toned beardtongue Plantaginaceae perennial herb May None None G3T3Q S1 1B.1 BLM_S; SB_CalBG/RSABG Development, Grazing, Mining, Non-native animal impacts, ORV activity Joshua tree "woodland", Mojavean desert scrub Disturbed areas (sometimes), Gravelly (sometimes), Rocky (sometimes) 700 1500 2295 4920 2001-01-01 Photo of Penstemon bicolor ssp. roseus
James M. Andre 2010
Penstemon janishiae Janish's beardtongue Plantaginaceae perennial herb May-Jul None None G4 S1 2B.2 BLM_S Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Great Basin scrub, Lower montane coniferous forest, Pinyon and juniper woodland Gravelly, Volcanic 1065 2350 3495 7710 2001-01-01 Photo of Penstemon janishiae
Christopher L. Christie 2005
Penstemon scapoides pinyon beardtongue Plantaginaceae perennial herb Jun-Jul None None G3 S3 4.3 SB_CalBG/RSABG Great Basin scrub, Pinyon and juniper woodland, Subalpine coniferous forest Carbonate, Rocky 2000 3200 6560 10500 Yes 1974-01-01
No Photo Available
Penstemon sudans Susanville beardtongue Plantaginaceae perennial herb Jun-Jul(Aug-Sep) None None G4 S4 4.3 BLM_S; SB_UCSC; USFS_S Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Great Basin scrub, Lower montane coniferous forest (openings), Pinyon and juniper woodland Roadsides (sometimes), Rocky, Volcanic 1200 2425 3935 7955 2001-01-01
No Photo Available
Penstemon thompsoniae Thompson's beardtongue Plantaginaceae perennial herb May-Jun None None G4 S1 2B.3 SB_CalBG/RSABG Recreational use (non-ORV) Pinyon and juniper woodland (gravelly, carbonate) 1500 2700 4920 8860 2001-01-01
No Photo Available
Penstemon utahensis Utah beardtongue Plantaginaceae perennial herb Apr-May None None G4 S2 2B.3 Grazing, Mining Chenopod scrub, Great Basin scrub, Mojavean desert scrub, Pinyon and juniper woodland Rocky 1065 2500 3495 8205 2001-01-01
No Photo Available
Pentachaeta aurea ssp. aurea golden-rayed pentachaeta Asteraceae annual herb Mar-Jul None None G4T3 S3 4.2 SB_CalBG/RSABG Chaparral, Cismontane woodland, Coastal scrub, Lower montane coniferous forest, Riparian woodland, Valley and foothill grassland 80 1850 260 6070 2001-01-01
No Photo Available
Pentachaeta fragilis fragile pentachaeta Asteraceae annual herb Mar-Jun None None G3 S3 4.3 Chaparral, Lower montane coniferous forest (sandy) Openings (often) 45 2100 150 6890 Yes 2001-01-01
No Photo Available
Petradoria pumila ssp. pumila rock goldenrod Asteraceae perennial herb Jul-Oct None None G5T4 S4? 4.3 SB_CalBG/RSABG Pinyon and juniper woodland (carbonate, rocky) 1070 3400 3510 11155 2001-01-01
No Photo Available
Petrophytum caespitosum ssp. acuminatum marble rockmat Rosaceae perennial evergreen shrub Aug-Sep None None G5T2 S2 1B.3 SB_CalBG/RSABG; USFS_S Other Lower montane coniferous forest, Upper montane coniferous forest Carbonate (sometimes), Granitic (sometimes), Rocky 1015 2300 3330 7545 Yes 2001-01-01
No Photo Available
Phacelia coerulea sky-blue phacelia Hydrophyllaceae annual herb Apr-May None None G5 S2 2B.3 Mojavean desert scrub, Pinyon and juniper woodland 1400 2000 4595 6560 2001-01-01
No Photo Available
Phacelia gymnoclada naked-stemmed phacelia Hydrophyllaceae annual herb Apr-Jun(Aug) None None G4 S2 2B.3 Chenopod scrub, Great Basin scrub, Pinyon and juniper woodland Clay (sometimes), Gravelly (sometimes) 1220 2500 4005 8205 2001-01-01
No Photo Available
Phacelia peirsoniana Peirson's phacelia Hydrophyllaceae annual herb May-Aug None None G4 S4 4.3 Great Basin scrub, Pinyon and juniper woodland Carbonate, Rocky 1370 2700 4495 8860 1974-01-01
No Photo Available
Phacelia perityloides var. jaegeri Jaeger's phacelia Hydrophyllaceae perennial herb May-Jul None None G4T2 S2 1B.3 BLM_S Pinyon and juniper woodland (often carbonate, rocky) 1830 2345 6005 7695 2001-01-01
No Photo Available
Physaria chambersii Chambers' physaria Brassicaceae perennial herb Apr-May None None G5 S3 2B.3 SB_CalBG/RSABG Grazing, Non-native animal impacts Pinyon and juniper woodland (carbonate, rocky) 1500 2590 4920 8500 2001-01-01
No Photo Available
Physocarpus alternans Nevada ninebark Rosaceae perennial deciduous shrub Jun-Jul None None G4 S3 2B.3 Non-native plant impacts Pinyon and juniper woodland (carbonate, rocky) 1800 3100 5905 10170 2001-01-01
No Photo Available
Piperia colemanii Coleman's rein orchid Orchidaceae perennial herb Jun-Aug None None G4 S4 4.3 Chaparral, Lower montane coniferous forest Sandy (often) 1200 2300 3935 7545 Yes 2001-01-01 Photo of Piperia colemanii
© 2005 Dean Wm. Taylor
Piperia cooperi chaparral rein orchid Orchidaceae perennial herb Mar-Jun None None G3 S3S4 4.2 SB_CRES Chaparral, Cismontane woodland, Valley and foothill grassland 15 1585 50 5200 2001-01-01
No Photo Available
Piperia elegans ssp. decurtata Point Reyes rein orchid Orchidaceae perennial herb Jul-Oct None None G4T1 S1 1B.1 SB_CalBG/RSABG Foot traffic/trampling, Other, Road/trail construction/maint. Coastal bluff scrub, Coastal prairie 15 185 50 605 Yes 2001-01-01
No Photo Available
Piperia leptopetala narrow-petaled rein orchid Orchidaceae perennial herb May-Jul None None G4 S4 4.3 Cismontane woodland, Lower montane coniferous forest, Upper montane coniferous forest 380 2225 1245 7300 Yes 2001-01-01
No Photo Available
Plagiobothrys chorisianus var. hickmanii Hickman's popcornflower Boraginaceae annual herb Apr-Jun None None G3T3Q S3 4.2 SB_SBBG; SB_UCSC Chaparral, Closed-cone coniferous forest, Coastal scrub, Marshes and swamps, Vernal pools 15 390 50 1280 Yes 2001-01-01
No Photo Available
Plagiobothrys parishii Parish's popcornflower Boraginaceae annual herb Mar-Jun(Nov) None None G1 S1 1B.1 BLM_S; SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Grazing, Non-native plant impacts, ORV activity Great Basin scrub, Joshua tree "woodland" Alkaline, Mesic 750 1400 2460 4595 Yes 2001-01-01
No Photo Available
Plagiobothrys torreyi var. torreyi Yosemite popcornflower Boraginaceae annual herb Apr-Jun None None G4T3Q S3 1B.2 SB_SBBG Foot traffic/trampling, Other, Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps 1200 1370 3935 4495 Yes 2001-01-01
No Photo Available
Platanthera stricta slender bog-orchid Orchidaceae perennial herb May-Aug None None G5 S3 4.2 Lower montane coniferous forest, Meadows and seeps Mesic 1000 2300 3280 7545 2001-01-01 Photo of Platanthera stricta
© 2021 Scot Loring
Poa lettermanii Letterman's blue grass Poaceae perennial herb Jul-Aug None None G4 S3 2B.3 Alpine boulder and rock field (sandy, rocky) 3500 4265 11485 13995 2001-01-01
No Photo Available
Polyctenium fremontii var. fremontii Fremont's combleaf Brassicaceae perennial herb Apr-Jul None None G4T4 S4 4.3 Great Basin scrub, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland, Playas Mesic 1000 2060 3280 6760 1974-01-01
No Photo Available
Polyctenium williamsiae Williams' combleaf Brassicaceae perennial herb Mar-Jul None None G2Q S1 1B.2 BLM_S; USFS_S Agriculture, Foot traffic/trampling, Grazing, Mining, Road/trail construction/maint., Surface water diversion Great Basin scrub, Marshes and swamps, Pinyon and juniper woodland, Playas, Vernal pools Lake Margins, Sandy, Volcanic 1347 2700 4420 8860 2001-01-01
No Photo Available
Polygonum hickmanii Scotts Valley polygonum Polygonaceae annual herb May-Aug FE CE G1 S1 1B.1 Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Insufficient population/stand size, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Valley and foothill grassland (mudstone, sandstone) 210 250 690 820 Yes 2001-01-01
No Photo Available
Potentilla pulcherrima beautiful cinquefoil Rosaceae perennial herb Jul None None G5 S1 2B.2 Grazing Great Basin scrub 3010 3010 9875 9875 2001-01-01
No Photo Available
Psorothamnus fremontii var. attenuatus narrow-leaved psorothamnus Fabaceae perennial shrub Apr None None G5T4? S3 2B.3 Development, Mining, Road/trail construction/maint. Sonoran desert scrub (granitic, volcanic) 335 915 1100 3000 2001-01-01
No Photo Available
Packera bolanderi var. bolanderi seacoast ragwort Asteraceae perennial rhizomatous herb (Jan-Apr)May-Jul(Aug) None None G4T4 S2S3 2B.2 Biocides, Erosion/runoff, Foot traffic/trampling, Logging, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing Coastal scrub, North Coast coniferous forest Roadsides (sometimes) 30 650 100 2135 2001-01-01 Photo of Packera bolanderi var. bolanderi
© 2021 Scot Loring
Packera indecora rayless mountain ragwort Asteraceae perennial herb Jul-Aug None None G5 S2? 2B.2 SB_UCSC Meadows and seeps (mesic) 1450 2000 4755 6560 2001-01-01 Photo of Packera indecora
© 2013 Kirsten Bovee
Pohlia tundrae tundra thread moss Mielichhoferiaceae moss None None G3 S3 2B.3 Alpine boulder and rock field (gravelly, damp soil) 2700 3000 8860 9845 2001-01-01 Photo of Pohlia tundrae
©2014 Dean Wm. Taylor
Pterygoneurum californicum CBR 2001-01-01
No Photo Available
Poa diaboli Diablo Canyon blue grass Poaceae perennial rhizomatous herb Mar-Apr None None G2 S2 1B.2 Grazing, Non-native plant impacts Chaparral (mesic), Cismontane woodland, Closed-cone coniferous forest, Coastal scrub Burned areas (sometimes), Shale 120 400 395 1310 Yes 2005-01-01
No Photo Available
Panicum shastense CBR 2006-01-10
No Photo Available
Papaver californicum CBR 2006-01-10
No Photo Available
Paronychia franciscana CBR 2006-01-10
No Photo Available
Parvisedum pentandrum CBR 2006-01-10
No Photo Available
Penstemon confusus ssp. patens CBR 2006-01-10
No Photo Available
Penstemon floridus var. floridus CBR 2006-01-10
No Photo Available
Penstemon monoensis CBR 2006-01-10
No Photo Available
Perityle megalocephala var. intricata CBR 2006-01-10
No Photo Available
Perityle megalocephala var. oligophylla CBR 2006-01-10
No Photo Available
Phacelia calthifolia CBR 2006-01-10
No Photo Available
Phacelia grisea CBR 2006-01-10
No Photo Available
Phacelia longipes CBR 2006-01-10
No Photo Available
Phacelia lyonii Lyon's phacelia Hydrophyllaceae annual herb Apr-Oct None None G2 S2 1B.2 Chaparral, Coastal bluff scrub, Coastal dunes, Coastal scrub Gravelly, Openings, Rocky, Talus 0 460 0 1510 Yes 2021-04-15
No Photo Available
Phacelia marcescens CBR 2006-01-10
No Photo Available
Phacelia platyloba CBR 2006-01-10
No Photo Available
Phacelia pringlei CBR 2006-01-10
No Photo Available
Phalacroseris bolanderi CBR 2006-01-10
No Photo Available
Phlox adsurgens CBR 2006-01-10
No Photo Available
Phlox azurea CBR 2006-01-10
No Photo Available
Pholisma arenarium CBR 2006-01-10
No Photo Available
Pholistoma racemosum CBR 2006-01-10
No Photo Available
Physalis crassifolia CBR 2006-01-10
No Photo Available
Picea breweriana CBR 2006-01-10
No Photo Available
Pilularia americana CBR 2006-01-10
No Photo Available
Pinus balfouriana CBR 2006-01-10
No Photo Available
Pinus quadrifolia CBR 2006-01-10
No Photo Available
Piperia elegans ssp. elegans CBR 2006-01-10
No Photo Available
Plagiobothrys distantiflorus CBR 2006-01-10
No Photo Available
Plagiobothrys scriptus CBR 2006-01-10
No Photo Available
Plectritis eichleriana CBR 2006-01-10
No Photo Available
Plectritis jepsonii CBR 2006-01-10
No Photo Available
Plectritis macrocera ssp. macrocera CBR 2006-01-10
No Photo Available
Poa sierrae Sierra blue grass Poaceae perennial rhizomatous herb Apr-Jul None None G3 S3 1B.3 BLM_S; USFS_S Biocides, Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Lower montane coniferous forest Openings 365 1500 1200 4920 Yes 2010-06-10 Photo of Poa sierrae
© 2012 Belinda Lo
Poa tenerrima CBR 2006-01-10
No Photo Available
Pogogyne douglasii ssp. minor CBR 2006-01-10
No Photo Available
Pogogyne douglasii ssp. ramosa CBR 2006-01-10
No Photo Available
Pogogyne serpylloides ssp. intermedia CBR 2006-01-10
No Photo Available
Polygonum montereyense CBR 2006-01-10
No Photo Available
Polygonum patulum CBR 2006-01-10
No Photo Available
Polystichum dudleyi CBR 2006-01-10
No Photo Available
Prunus lyonii CBR 2006-01-10
No Photo Available
Psorothamnus arborescens var. simplicifolius CBR 2006-01-10
No Photo Available
Puccinellia lemmonii CBR 2006-01-10
No Photo Available
Packera streptanthifolia CBR 2006-01-10
No Photo Available
Potentilla hickmanii var. uliginosa CBR 2006-01-10
No Photo Available
Penstemon confusus ssp. confusus CBR 2006-01-10
No Photo Available
Penstemon neotericus CBR 2006-01-10
No Photo Available
Phacelia vallicola CBR 2006-01-10
No Photo Available
Polypodium hesperium CBR 2006-01-10
No Photo Available
Physalis greenei CBR 2006-01-10
No Photo Available
Pinus remorata CBR 2006-01-10
No Photo Available
Poa fibrata CBR 2006-01-10
No Photo Available
Pinus lambertiana CBR 2006-01-10
No Photo Available
Pinus washoensis CBR 2006-01-10
No Photo Available
Penstemon venustus CBR 2006-01-10
No Photo Available
Phacelia ixodes CBR 2006-01-10
No Photo Available
Petunia parviflora CBR 2006-01-10
No Photo Available
Polygonum fusiforme CBR 2006-01-10
No Photo Available
Penstemon floridus var. austinii CBR 2006-01-10
No Photo Available
Penstemon fruticiformis var. fruticiformis CBR 2006-01-10
No Photo Available
Penstemon newberryi var. berryi CBR 2006-01-10
No Photo Available
Phacelia ivesiana CBR 2006-01-10
No Photo Available
Plantago maritima var. californica CBR 2006-01-10
No Photo Available
Polygonum polygaloides ssp. polygaloides CBR 2006-01-10
No Photo Available
Pyrola asarifolia ssp. bracteata CBR 2006-01-10
No Photo Available
Penstemon purpusii CBR 2006-01-10
No Photo Available
Plagiobothrys glomeratus CBR 2006-01-10
No Photo Available
Pogogyne douglasii ssp. parviflora CBR 2006-01-10
No Photo Available
Psilocarphus tenellus var. globiferus CBR 2006-01-10
No Photo Available
Puccinellia californica CBR 2006-01-10
No Photo Available
Penstemon pahutensis Pahute beardtongue Plantaginaceae perennial herb Jun None None G3 S1 2B.3 Great Basin scrub, Pinyon and juniper woodland Carbonate (sometimes), Rocky 1900 2300 6235 7545 2006-02-22
No Photo Available
Phacelia barnebyana Barneby's phacelia Hydrophyllaceae annual herb (Apr)May-Jul None None G3? S2 2B.3 Non-native plant impacts Great Basin scrub, Pinyon and juniper woodland Carbonate (usually), Gravelly, Rocky 1600 2700 5250 8860 2007-01-03
No Photo Available
Phacelia hubbyi Hubby's phacelia Hydrophyllaceae annual herb Apr-Jul None None G4 S4 4.2 SB_SBBG Chaparral, Coastal scrub, Valley and foothill grassland Gravelly, Rocky, Talus 0 1000 0 3280 Yes 2007-02-02
No Photo Available
Pseudognaphalium leucocephalum white rabbit-tobacco Asteraceae perennial herb (Jul)Aug-Nov(Dec) None None G4 S2 2B.2 Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Non-native plant impacts, Recreational use (non-ORV), Wood cutting or brush clearing Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland Gravelly, Sandy 0 2100 0 6890 2006-11-03
No Photo Available
Packera hesperia western ragwort Asteraceae perennial herb Apr-Jun None None G3 S1 2B.2 USFS_S Improper burning regime, Logging, ORV activity Meadows and seeps, Upper montane coniferous forest Serpentine 500 2500 1640 8205 2007-04-12 Photo of Packera hesperia
©2008 Keir Morse
Pickeringia montana var. tomentosa woolly chaparral-pea Fabaceae evergreen shrub May-Aug None None G5T3T4 S3S4 4.3 SB_CRES Chaparral Clay, Gabbroic, Granitic 0 1700 0 5580 2007-02-07
No Photo Available
Phacelia ramosissima var. austrolitoralis south coast branching phacelia Hydrophyllaceae perennial herb Mar-Aug None None G5?T3Q S3 3.2 Chaparral, Coastal dunes, Coastal scrub, Marshes and swamps (coastal salt) Rocky (sometimes), Sandy 5 300 15 985 2007-05-17
No Photo Available
Platanthera yosemitensis Yosemite bog orchid Orchidaceae perennial herb Jul-Aug None None G2 S2 1B.2 IUCN_EN; SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Grazing, Surface water diversion Meadows and seeps Granitic, Mesic 2100 2285 6890 7495 Yes 2007-09-10
No Photo Available
Parnassia cirrata var. intermedia Cascade grass-of-Parnassus Parnassiaceae perennial herb (Jul)Aug-Sep(Oct) None None GNRTNR S3 2B.2 SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Logging, Recreational use (non-ORV), Road/trail construction/maint. Bogs and fens, Meadows and seeps Rocky, Serpentine 780 1980 2560 6495 2007-09-19 Photo of Parnassia cirrata var. intermedia
©2009 Sierra Pacific Industries
Pentachaeta aurea ssp. allenii Allen's pentachaeta Asteraceae annual herb Mar-Jun None None G4T1 S1 1B.1 ORV activity, Other Coastal scrub (openings), Valley and foothill grassland 75 520 245 1705 Yes 2008-05-08 Photo of Pentachaeta aurea ssp. allenii
©2008 Bob Allen
Polemonium carneum Oregon polemonium Polemoniaceae perennial herb Apr-Sep None None G3G4 S2 2B.2 Logging Coastal prairie, Coastal scrub, Lower montane coniferous forest 0 1830 0 6005 2008-11-03 Photo of Polemonium carneum
©2018 John Doyen
Parnassia parviflora small-flowered grass-of-Parnassus Parnassiaceae perennial herb Aug-Sep None None G5? S2 2B.2 Foot traffic/trampling Meadows and seeps Mesic 2000 2855 6560 9365 2008-12-10
No Photo Available
Physaria ludoviciana silver bladderpod Brassicaceae perennial herb May-Jun None None G5 S1 2B.2 Great Basin scrub 2130 2130 6990 6990 2009-04-23
No Photo Available
Plagiobothrys nitens shiny-nutlet popcornflower Boraginaceae annual herb Jun-Jul None None GNR S1 2B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Grazing Meadows and seeps Alkaline 1510 1600 4955 5250 2009-08-03
No Photo Available
Potentilla uliginosa Cunningham Marsh cinquefoil Rosaceae perennial herb May-Aug None None GX SX 1A Agriculture, Development Marshes and swamps (freshwater) 30 40 100 130 Yes 2010-12-20
No Photo Available
Ptilidium californicum Pacific fuzzwort Ptilidiaceae liverwort May-Aug None None G4G5 S3S4 4.3 BLM_S Foot traffic/trampling, Grazing, Improper burning regime, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Lower montane coniferous forest, Upper montane coniferous forest 1140 1800 3740 5905 2011-03-23 Photo of Ptilidium californicum
© 2021 Scot Loring
Penstemon pseudospectabilis ssp. pseudospectabilis desert beardtongue Plantaginaceae perennial herb Jan-May None None G4G5T4 S3 2B.2 ORV activity Mojavean desert scrub, Sonoran desert scrub Rocky (sometimes), Sandy (often), Washes (often) 80 1935 260 6350 2012-04-11
No Photo Available
Prosartes parvifolia Siskiyou bells Liliaceae perennial bulbiferous herb May-Sep None None G2 S2 1B.2 SB_UCSC; USFS_S Erosion/runoff, Foot traffic/trampling, Logging, Other, Road/trail construction/maint., Wood cutting or brush clearing Lower montane coniferous forest, Upper montane coniferous forest Burned areas, Disturbed areas, Roadsides (often) 700 1525 2295 5005 2012-02-08 Photo of Prosartes parvifolia
©2010 Kjirsten Wayman
Plagiobothrys torreyi var. perplexans chaparral popcornflower Boraginaceae annual herb Apr-Sep None None G4T3? S3? 4.3 Chaparral, Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Burned areas 1070 2745 3510 9005 Yes 2012-08-21
No Photo Available
Plagiobothrys verrucosus warty popcornflower Boraginaceae annual herb Apr-May None None G4G5 S1 2B.1 Chaparral Shale 610 760 2000 2495 2012-08-21
No Photo Available
Panicum hirticaule ssp. hirticaule roughstalk witch grass Poaceae annual herb Aug-Dec None None G5T5 S2 2B.1 SB_CalBG/RSABG Development, Foot traffic/trampling, Mining, ORV activity Desert dunes, Joshua tree "woodland", Mojavean desert scrub, Sonoran desert scrub Sandy 45 1315 150 4315 2013-08-28
No Photo Available
Plagiobothrys collinus var. gracilis CBR 2013-12-11
No Photo Available
Porotrichum bigelovii CBR 2014-02-11
No Photo Available
Ptychostomum pacificum CBR 2014-02-11
No Photo Available
Polemonium eddyense Mt. Eddy sky pilot Polemoniaceae perennial herb Jun-Aug None None G1 S1 1B.2 SB_UCSC Foot traffic/trampling, Other Alpine boulder and rock field Rocky, Serpentine (sometimes) 2480 2750 8135 9025 Yes 2014-02-10 Photo of Polemonium eddyense
©2014 Eric White
Peltigera gowardii western waterfan lichen Peltigeraceae foliose lichen (aquatic) None None G4? S3 4.2 USFS_S Altered flood/tidal/hydrologic regime, Dam/Inundation, Erosion/runoff, Logging, ORV activity, Other, Recreational use (non-ORV), Surface water diversion Riparian forest 1065 2620 3495 8595 2014-03-01 Photo of Peltigera gowardii
© 2021 Scot Loring
Plagiobothrys collinus var. ursinus CBR 2013-12-11
No Photo Available
Plagiobryoides vinosula wine-colored tufa moss Bryaceae moss None None G3G4 S3S4 4.2 Cismontane woodland, Meadows and seeps, Mojavean desert scrub, Pinyon and juniper woodland, Riparian woodland Clay (sometimes), Granitic (usually), Seeps, Streambanks 30 1735 100 5695 2014-06-10
No Photo Available
Polemonium pulcherrimum var. shastense Mt. Shasta sky pilot Polemoniaceae perennial herb Jun-Sep None None G5T2 S2 1B.2 Foot traffic/trampling, Road/trail construction/maint. Alpine boulder and rock field, Subalpine coniferous forest, Upper montane coniferous forest Volcanic (sometimes) 2175 3900 7135 12795 Yes 2014-11-17 Photo of Polemonium pulcherrimum var. shastense
©2015 Neal Kramer
Pohlia flexuosa flexuose threadmoss Mielichhoferiaceae moss None None G5 S1 2B.1 Lower montane coniferous forest Roadsides, Rocky, Seeps 950 1025 3115 3365 2014-10-10
No Photo Available
Puccinellia simplex California alkali grass Poaceae annual herb Mar-May None None G2 S2 1B.2 BLM_S Agriculture, Altered flood/tidal/hydrologic regime, Dam/Inundation, Development, Foot traffic/trampling, Landfill, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chenopod scrub, Meadows and seeps, Valley and foothill grassland, Vernal pools Alkaline, Flats, Lake Margins, Vernally Mesic 2 930 5 3050 2015-10-15 Photo of Puccinellia simplex
© 2017 Chris Winchell
Petalonyx linearis narrow-leaf sandpaper-plant Loasaceae perennial shrub (Jan-Feb)Mar-May(Jun-Dec) None None G4 S3? 2B.3 Mojavean desert scrub, Sonoran desert scrub Rocky (sometimes), Sandy (sometimes) -25 1115 -80 3660 2016-09-16
No Photo Available
Pleuridium mexicanum Mexican earthmoss Ditrichaceae moss None None G5 S1 2B.1 Chaparral Sandstone 440 440 1445 1445 2014-07-28
No Photo Available
Primula pauciflora var. monantha CBR 2016-11-02
No Photo Available
Primula pauciflora var. shoshonense CBR 2016-11-02
No Photo Available
Pedicularis racemosa ssp. alba CBR 2016-11-03
No Photo Available
Peritoma jonesii CBR 2016-11-03
No Photo Available
Phacelia viscida var. albiflora CBR 2016-11-03
No Photo Available
Peritoma arborea var. angustata CBR 2016-11-04
No Photo Available
Polygonum sawatchense ssp. oblivium CBR 2016-11-07
No Photo Available
Polygonum fowleri ssp. fowleri CBR 2016-11-10
No Photo Available
Pinus albicaulis CBR 2016-12-07
No Photo Available
Plagiobothrys bracteatus var. aculeolatus CBR 2016-11-04
No Photo Available
Petrophytum caespitosum ssp. caespitosum CBR
No Photo Available
Peltigera pacifica fringed pelt Peltigeraceae foliose lichen None None G3G4 S2 2B.2 Over-collecting/poaching, Recreational use (non-ORV), Wood cutting or brush clearing North Coast coniferous forest, Riparian forest Seeps 1320 1375 4330 4510 2021-06-07 Photo of Peltigera pacifica
©2013 Scot Loring
Pedicularis rigginsiae Arroyo de la Cruz lousewort Orobanchaceae perennial herb (hemiparasitic) Jan-May None None G1 S1 1B.1 Wood cutting or brush clearing Chaparral (maritime) Clay 100 155 330 510 Yes 2021-02-17
No Photo Available
Platismatia lacunosa crinkled rag lichen Parmeliaceae foliose lichen (epiphytic) None None G4 S2? 2B.3 Other North Coast coniferous forest, Riparian woodland 20 2000 65 6560 2022-09-28 Photo of Platismatia lacunosa
© 2014 Chris Wagner
Penstemon clevelandii var. mohavensis Mojave beardtongue Plantaginaceae perennial herb Mar-May None None G5T3? S2 1B.2 Mojavean desert scrub, Pinyon and juniper woodland Granitic (often), Rocky 925 1620 3035 5315 2022-11-28 Photo of Penstemon clevelandii var. mohavensis
© 2018 Lisa Schauer
Phacelia saxicola stonecrop phacelia Hydrophyllaceae annual herb Apr-Jun(Jul) None None 2B.3 Great Basin scrub Gravelly, Rocky, Volcanic 1270 1890 4165 6200 2024-03-07 Photo of Phacelia saxicola
© 2019 Aaron Schusteff
Phacelia damnationensis Damnation Pass phacelia Hydrophyllaceae perennial herb Jun-Sep None None 1B.3 Lower montane coniferous forest Gravelly, Metamorphic, Openings, Roadsides, Rocky, Sandstone, Shale, Talus 1005 1440 3295 4725 2024-03-07 Photo of Phacelia damnationensis
© 2023 Julie Kierstead Nelson
Panicum huachucae CBR 2024-02-29
No Photo Available
Pectocarya peninsularis CBR 2024-02-29
No Photo Available
Pellaea andromedifolia var. pubescens CBR 2024-02-29
No Photo Available
Pellaea andromedifolia var. rubens CBR 2024-02-29
No Photo Available
Penstemon heterodoxus var. cephalophorus CBR 2024-02-29
No Photo Available
Penstemon strictus CBR 2024-02-29
No Photo Available
Pentagramma triangularis ssp. semipallida CBR 2024-02-29
No Photo Available
Pentagramma triangularis ssp. viscosa CBR 2024-02-29
No Photo Available
Phacelia campanularia var. campanularia CBR 2024-02-29
No Photo Available
Phacelia eisenii var. brandeegeeana CBR 2024-02-29
No Photo Available
Phacelia lutea var. scopulina CBR 2024-02-29
No Photo Available
Phacelia oreopola var. oreopola CBR 2024-02-29
No Photo Available
Phacelia suaveolens var. suaveolens CBR 2024-02-29
No Photo Available
Phlox cespitosa CBR 2024-02-29
No Photo Available
Pinguicula vulgaris ssp. vulgaris CBR 2024-02-29
No Photo Available
Pinus californiarum ssp. californiarum CBR 2024-02-29
No Photo Available
Pinus californiarum ssp. fallax CBR 2024-02-29
No Photo Available
Plagiobothrys canescens var. catalinensis CBR 2024-02-29
No Photo Available
Platanthera hyperborea var. purpurascens CBR 2024-02-29
No Photo Available
Polemonium pulcherrimum var. pilosum CBR 2024-02-29
No Photo Available
Potamogeton latifolius CBR 2024-02-29
No Photo Available
Potentilla wheeleri CBR 2024-02-29
No Photo Available
Pediomelum mephiticum CBR 2024-03-06
No Photo Available
Primula pauciflora var. pauciflora CBR 2024-03-06
No Photo Available
Phyla nodiflora CBR 2024-03-19
No Photo Available