CNPS

CNPS Rare Plant Inventory


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181 matches found. Click on scientific name for details

Search Criteria: Common Name starts with M

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
Eriogonum ovalifolium var. monarchense Monarch buckwheat Polygonaceae perennial herb Jun-Aug None None G5T1 S1 1B.1 USFS_S Insufficient population/stand size, Non-native plant impacts Mojavean desert scrub, Pinyon and juniper woodland Carbonate, Rocky (sometimes), Sandy (sometimes) 1800 1815 5905 5955 Yes 2004-01-01
No Photo Available
Arctostaphylos morroensis Morro manzanita Ericaceae perennial evergreen shrub Dec-Mar FT None G1 S1 1B.1 SB_UCSC Development, Non-native plant impacts, ORV activity, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Cismontane woodland, Coastal dunes (pre-Flandrian), Coastal scrub 5 205 15 675 Yes 1974-01-01 Photo of Arctostaphylos morroensis
© 2012 Jean Pawek
Calochortus pulchellus Mt. Diablo fairy-lantern Liliaceae perennial bulbiferous herb Apr-Jun None None G2 S2 1B.2 SB_CalBG/RSABG Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Riparian woodland, Valley and foothill grassland 30 840 100 2755 Yes 1974-01-01
No Photo Available
Calyptridium pulchellum Mariposa pussypaws Montiaceae annual herb Apr-Aug FT None G1 S1 1B.1 Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland Granitic, Gravelly (sometimes), Sandy (sometimes) 400 1100 1310 3610 Yes 1980-01-01
No Photo Available
Calystegia collina ssp. oxyphylla Mt. Saint Helena morning-glory Convolvulaceae perennial rhizomatous herb Apr-Jun None None G4T3 S3 4.2 Erosion/runoff, Foot traffic/trampling, Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Lower montane coniferous forest, Valley and foothill grassland Serpentine 279 1010 915 3315 Yes 1984-01-01
No Photo Available
Agrostis humilis mountain bent grass Poaceae perennial herb Jul-Sep None None G4Q S2 2B.3 Foot traffic/trampling, Grazing, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Alpine boulder and rock field, Meadows and seeps, Subalpine coniferous forest Carbonate (sometimes) 2670 3200 8760 10500 1980-01-01 Photo of Agrostis humilis
© 2004 Steve Matson
Allium munzii Munz's onion Alliaceae perennial bulbiferous herb Mar-May FE CT G1 S1 1B.1 SB_CalBG/RSABG Agriculture, Development, Disking, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland, Coastal scrub, Pinyon and juniper woodland, Valley and foothill grassland Clay, Mesic 297 1070 975 3510 Yes 1980-01-01 Photo of Allium munzii
© 2003 Guy Bruyea
Allium howellii var. clokeyi Mt. Pinos onion Alliaceae perennial bulbiferous herb Apr-Jun None None G4T2 S2 1B.3 SB_SBBG; USFS_S Development, Grazing, ORV activity, Wood cutting or brush clearing Great Basin scrub, Meadows and seeps (edges), Pinyon and juniper woodland 1300 1850 4265 6070 Yes 1974-01-01 Photo of Allium howellii var. clokeyi
© 2016 Keir Morse
Arctostaphylos montana ssp. montana Mt. Tamalpais manzanita Ericaceae perennial evergreen shrub Feb-Apr None None G3T3 S3 1B.3 SB_UCBG Improper burning regime, Non-native plant impacts, Road/trail construction/maint. Chaparral, Valley and foothill grassland Rocky, Serpentine 160 760 525 2495 Yes 1974-01-01 Photo of Arctostaphylos montana ssp. montana
© 2018 John Doyen
Arctostaphylos montaraensis Montara manzanita Ericaceae perennial evergreen shrub Jan-Mar None None G1 S1 1B.2 SB_CalBG/RSABG; SB_USDA Erosion/runoff, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Coastal scrub 80 500 260 1640 Yes 1974-01-01 Photo of Arctostaphylos montaraensis
© 2016 Neal Kramer
Arctostaphylos virgata Marin manzanita Ericaceae perennial evergreen shrub Jan-Mar None None G2 S2 1B.2 SB_CalBG/RSABG; SB_USDA Erosion/runoff, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing Broadleafed upland forest, Chaparral, Closed-cone coniferous forest, North Coast coniferous forest Granitic (sometimes), Sandstone (sometimes) 60 700 195 2295 Yes 1974-01-01
No Photo Available
Dudleya abramsii ssp. murina mouse-gray dudleya Crassulaceae perennial leaf May-Jun None None G4T2 S2 1B.1 BLM_S; SB_CalBG/RSABG Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Military operations, Mining, Non-native plant impacts, Other, Over-collecting/poaching, Road/trail construction/maint. Chaparral, Cismontane woodland, Valley and foothill grassland Serpentine 90 525 295 1725 Yes 1980-01-01
No Photo Available
Hemizonia congesta ssp. calyculata Mendocino tarplant Asteraceae annual herb Jul-Nov None None G5T4 S4 4.3 Cismontane woodland, Valley and foothill grassland Serpentine (sometimes) 225 1400 740 4595 Yes 1974-01-01 Photo of Hemizonia congesta ssp. calyculata
© 2015 John Doyen
Arnica viscosa Mt. Shasta arnica Asteraceae perennial rhizomatous herb Aug-Sep None None G4 S3 4.3 SB_CalBG/RSABG Subalpine coniferous forest, Upper montane coniferous forest Rocky 1705 2745 5595 9005 1974-01-01 Photo of Arnica viscosa
©2010 Keir Morse
Clarkia lingulata Merced clarkia Onagraceae annual herb May-Jun None CE G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG; USFS_S Biocides, Erosion/runoff, Grazing, Non-native plant impacts, Road/trail construction/maint. Chaparral, Cismontane woodland 400 455 1310 1495 Yes 1974-01-01
No Photo Available
Clarkia mildrediae ssp. mildrediae Mildred's clarkia Onagraceae annual herb May-Aug None None G3T3? S3? 1B.3 SB_UCSC; USFS_S Biocides, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Cismontane woodland, Lower montane coniferous forest Granitic (usually), Sandy 245 1710 805 5610 Yes 1974-01-01
No Photo Available
Clarkia mosquinii Mosquin's clarkia Onagraceae annual herb May-Jul(Sep) None None G2 S2 1B.1 BLM_S; SB_CalBG/RSABG; USFS_S Biocides, Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland, Lower montane coniferous forest Roadsides, Rocky 185 1490 605 4890 Yes 1980-01-01 Photo of Clarkia mosquinii
© 2002 Dean Wm Taylor
Cordylanthus nidularius Mt. Diablo bird's-beak Orobanchaceae annual herb (hemiparasitic) Jun-Aug None CR G1 S1 1B.1 SB_UCBG Feral pigs, Foot traffic/trampling, Road/trail construction/maint. Chaparral (serpentinite) 600 800 1970 2625 Yes 1974-01-01
No Photo Available
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
Arabis mcdonaldiana McDonald's rockcress Brassicaceae perennial herb May-Jul FE CE G3 S3 1B.1 SB_BerrySB; SB_CalBG/RSABG Grazing, Mining, Other, Road/trail construction/maint. Lower montane coniferous forest, Upper montane coniferous forest Serpentine 135 1800 445 5905 1974-01-01 Photo of Arabis mcdonaldiana
© 2003 Norman Jensen
Arabis modesta modest rockcress Brassicaceae perennial herb Mar-Jul None None G3 S3 4.3 Chaparral, Lower montane coniferous forest 120 800 395 2625 1974-01-01 Photo of Arabis modesta
©2014 Scot Loring
Arctostaphylos auriculata Mt. Diablo manzanita Ericaceae perennial evergreen shrub Jan-Mar None None G2 S2 1B.3 SB_UCSC Biocides, Development, Grazing, Improper burning regime, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral (sandstone), Cismontane woodland 135 650 445 2135 Yes 1974-01-01 Photo of Arctostaphylos auriculata
© 2006 Steve Matson
Ceanothus maritimus maritime ceanothus Rhamnaceae perennial evergreen shrub Jan-Apr None CR G2 S2 1B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing Chaparral (maritime), Coastal bluff scrub, Valley and foothill grassland Clay 10 150 35 490 Yes 1974-01-01
No Photo Available
Ceanothus masonii Mason's ceanothus Rhamnaceae perennial evergreen shrub Mar-Apr None CR G1 S1 1B.2 SB_CalBG/RSABG; SB_USDA Grazing, Improper burning regime, Other, Road/trail construction/maint. Chaparral (openings, rocky, serpentinite) 230 500 755 1640 Yes 1974-01-01
No Photo Available
Ceanothus rigidus Monterey ceanothus Rhamnaceae perennial evergreen shrub Feb-Apr(Jun) None None G4 S4 4.2 SB_SBBG Chaparral, Closed-cone coniferous forest, Coastal scrub Sandy 3 550 10 1805 Yes 1974-01-01
No Photo Available
Arenaria paludicola marsh sandwort Caryophyllaceae perennial stoloniferous herb May-Aug FE CE G1 S1 1B.1 SB_SBBG Altered flood/tidal/hydrologic regime, Degraded water quality, Development, Feral pigs, Non-native plant impacts, ORV activity, Other, Pollution, Surface water diversion, Vandalism/dumping/litter Marshes and swamps (brackish, freshwater) Openings, Sandy 3 170 10 560 1984-01-01
No Photo Available
Camissonia sierrae ssp. alticola Mono Hot Springs evening-primrose Onagraceae annual herb May-Aug None None G3T2 S2 1B.2 USFS_S Development, Erosion/runoff, Foot traffic/trampling, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest, Upper montane coniferous forest Granitic, Gravelly 1035 2410 3395 7905 Yes 1980-01-01
No Photo Available
Draba carnosula Mt. Eddy draba Brassicaceae perennial herb Jul-Aug None None G2 S2 1B.3 BLM_S; SB_BerrySB; USFS_S Subalpine coniferous forest, Upper montane coniferous forest Rocky, Serpentine 1935 3000 6350 9845 Yes 1980-01-01 Photo of Draba carnosula
©2011 Steve Matson
Draba cruciata Mineral King draba Brassicaceae perennial herb Jun-Aug None None G3 S3 1B.3 USFS_S Foot traffic/trampling, Road/trail construction/maint. Subalpine coniferous forest (gravelly) 2500 3315 8205 10875 Yes 1974-01-01
No Photo Available
Draba sharsmithii Mt. Whitney draba Brassicaceae perennial herb Jul-Aug None None G2 S2 1B.3 SB_CalBG/RSABG; USFS_S Foot traffic/trampling, Road/trail construction/maint. Alpine boulder and rock field, Subalpine coniferous forest 3300 3960 10825 12995 Yes 1974-01-01
No Photo Available
Dryopteris filix-mas male fern Dryopteridaceae perennial rhizomatous herb Jul-Sep None None G5 S2 2B.3 Upper montane coniferous forest (granitic, rocky) 2400 3100 7875 10170 1974-01-01
No Photo Available
Asarum marmoratum marbled wild-ginger Aristolochiaceae perennial rhizomatous herb Apr-Aug None None G4? S2 2B.3 SB_UCSC Logging, Road/trail construction/maint. Lower montane coniferous forest 200 1800 655 5905 1988-01-01 Photo of Asarum marmoratum
© 2021 Scot Loring
Asplenium trichomanes ssp. trichomanes maidenhair spleenwort Aspleniaceae perennial rhizomatous herb May-Jul None None G5T5 S1 2B.1 Recreational use (non-ORV), Road/trail construction/maint. Lower montane coniferous forest (rocky) 185 200 605 655 1984-01-01 Photo of Asplenium trichomanes ssp. trichomanes
©2012 Dana York
Astragalus monoensis Mono milk-vetch Fabaceae perennial herb Jun-Aug None CR G2 S2 1B.2 BLM_S; SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Great Basin scrub, Upper montane coniferous forest Gravelly (sometimes), Sandy (sometimes) 2110 3355 6925 11010 Yes 1974-01-01
No Photo Available
Dudleya cymosa ssp. marcescens marcescent dudleya Crassulaceae perennial herb Apr-Jul FT CR G5T2 S2 1B.2 SB_CalBG/RSABG; SB_SBBG Development, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint. Chaparral Rocky, Volcanic 150 520 490 1705 Yes 1974-01-01
No Photo Available
Dudleya multicaulis many-stemmed dudleya Crassulaceae perennial herb Apr-Jul None None G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Agriculture, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Landfill, 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 Chaparral, Coastal scrub, Valley and foothill grassland Clay (often) 15 790 50 2590 Yes 1974-01-01
No Photo Available
Hesperolinon congestum Marin western flax Linaceae annual herb Apr-Jul FT CT G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Biocides, Dam/Inundation, Development, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Valley and foothill grassland Serpentine 5 370 15 1215 Yes 1974-01-01 Photo of Hesperolinon congestum
© 2009 Neal Kramer
Castilleja gleasoni Mt. Gleason paintbrush Orobanchaceae perennial herb (hemiparasitic) May-Jun(Sep) None CR G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Foot traffic/trampling, Improper burning regime, Logging, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Lower montane coniferous forest, Pinyon and juniper woodland Granitic 1160 2170 3805 7120 Yes 1974-01-01
No Photo Available
Castilleja latifolia Monterey Coast paintbrush Orobanchaceae perennial herb (hemiparasitic) Feb-Sep None None G4 S4 4.3 Cismontane woodland (openings), Closed-cone coniferous forest, Coastal dunes, Coastal scrub Sandy 0 185 0 605 Yes 1974-01-01
No Photo Available
Castilleja mendocinensis Mendocino Coast paintbrush Orobanchaceae perennial herb (hemiparasitic) Apr-Aug None None G2 S2 1B.2 BLM_S; SB_UCSC Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Closed-cone coniferous forest, Coastal bluff scrub, Coastal dunes, Coastal prairie, Coastal scrub 0 160 0 525 1974-01-01 Photo of Castilleja mendocinensis
©2015 John Doyen
Castilleja plagiotoma Mojave paintbrush Orobanchaceae perennial herb (hemiparasitic) Apr-Jun None None G4 S4 4.3 SB_CalBG/RSABG; USFS_S Great Basin scrub (alluvial), Joshua tree "woodland", Lower montane coniferous forest, Pinyon and juniper woodland 300 2500 985 8205 Yes 1974-01-01
No Photo Available
Ceanothus gloriosus var. porrectus Mt. Vision ceanothus Rhamnaceae perennial evergreen shrub Feb-May None None G4T2 S2 1B.3 SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Vandalism/dumping/litter Closed-cone coniferous forest, Coastal prairie, Coastal scrub, Valley and foothill grassland 25 305 80 1000 Yes 1974-01-01
No Photo Available
Chorizanthe pungens var. pungens Monterey spineflower Polygonaceae annual herb Apr-Jun(Jul-Aug) FT None G2T2 S2 1B.2 BLM_S; SB_SBBG; SB_UCBG Agriculture, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Cismontane woodland, Coastal dunes, Coastal scrub, Valley and foothill grassland Sandy 3 450 10 1475 Yes 1980-01-01
No Photo Available
Chorizanthe spinosa Mojave spineflower Polygonaceae annual herb Mar-Jul None None G4 S4 4.2 Chenopod scrub, Joshua tree "woodland", Mojavean desert scrub, Playas Alkaline (sometimes) 6 1300 20 4265 Yes 1974-01-01 Photo of Chorizanthe spinosa
© 2011 Benjamin Smith
Cirsium fontinale var. campylon Mt. Hamilton thistle Asteraceae perennial herb (Feb)Apr-Oct None None G2T2 S2 1B.2 SB_CalBG/RSABG Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Landfill, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Waterway bank protection/maintenance, Wood cutting or brush clearing Chaparral, Cismontane woodland, Valley and foothill grassland Seeps, Serpentine 100 890 330 2920 Yes 1974-01-01
No Photo Available
Cirsium hydrophilum var. vaseyi Mt. Tamalpais thistle Asteraceae perennial herb May-Aug None None G2T1 S1 1B.2 SB_CalBG/RSABG Development, Foot traffic/trampling, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Chaparral, Meadows and seeps Seeps, Serpentine 240 620 785 2035 Yes 1974-01-01
No Photo Available
Clarkia biloba ssp. australis Mariposa clarkia Onagraceae annual herb Apr-Jul None None G4G5T3 S3 1B.2 SB_CalBG/RSABG; SB_SBBG; USFS_S Altered flood/tidal/hydrologic regime, Biocides, Disking, Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Chaparral, Cismontane woodland Serpentine 300 1460 985 4790 Yes 1980-01-01
No Photo Available
Claytonia palustris marsh claytonia Montiaceae perennial herb May-Oct None None G4 S4 4.3 Marshes and swamps, Meadows and seeps (mesic), Upper montane coniferous forest 1000 2500 3280 8205 Yes 1988-01-01 Photo of Claytonia palustris
©2006 Dean Wm. Taylor, Ph.D.
Leptosyne hamiltonii Mt. Hamilton coreopsis Asteraceae annual herb Mar-May None None G2 S2 1B.2 BLM_S; SB_UCBG Erosion/runoff, Feral pigs, Grazing, Non-native plant impacts, Vandalism/dumping/litter Cismontane woodland (rocky) 550 1300 1805 4265 Yes 1974-01-01 Photo of Leptosyne hamiltonii
©2012 Aaron Schusteff
Cryptantha mariposae Mariposa cryptantha Boraginaceae annual herb Apr-Jun None None G2G3 S2S3 1B.3 BLM_S Mining Chaparral (rocky, serpentinite) 200 650 655 2135 Yes 1974-01-01
No Photo Available
Hesperocyparis macrocarpa Monterey cypress Cupressaceae perennial evergreen tree None None G1 S1 1B.2 IUCN_VU; SB_CalBG/RSABG Development, Foot traffic/trampling Closed-cone coniferous forest 10 30 35 100 Yes 1980-01-01 Photo of Hesperocyparis macrocarpa
© 2021 Scot Loring
Cypripedium montanum mountain lady's-slipper Orchidaceae perennial rhizomatous herb Mar-Aug None None G4G5 S4 4.2 BLM_S; IUCN_VU; USFS_S Broadleafed upland forest, Cismontane woodland, Lower montane coniferous forest, North Coast coniferous forest 185 2225 605 7300 1980-01-01 Photo of Cypripedium montanum
©2021 Scot Loring
Delphinium parryi ssp. purpureum Mt. Pinos larkspur Ranunculaceae perennial herb May-Jun None None G4T4 S4 4.3 SB_CalBG/RSABG; SB_SBBG; USFS_S Chaparral, Mojavean desert scrub, Pinyon and juniper woodland 1000 2600 3280 8530 Yes 1974-01-01
No Photo Available
Vahlodea atropurpurea mountain hair grass Poaceae perennial herb Jul-Aug None None G5 S3 4.3 Meadows and seeps, Subalpine coniferous forest, Upper montane coniferous forest Mesic 1710 2300 5610 7545 1974-01-01
No Photo Available
Iris munzii Munz's iris Iridaceae perennial rhizomatous herb Mar-Apr(May) None None G2 S2 1B.3 BLM_S; SB_CalBG/RSABG; USFS_S Development, Other, Road/trail construction/maint. Cismontane woodland 305 800 1000 2625 Yes 1974-01-01 Photo of Iris munzii
© 2009 Irene Lindsey
Dieteria asteroides var. lagunensis Mt. Laguna aster Asteraceae perennial herb (May)Jul-Aug None CR G5?T2 S1 2B.1 BLM_S; SB_CRES; USFS_S Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland, Lower montane coniferous forest 790 2400 2590 7875 1988-01-01
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
Salvia munzii Munz's sage Lamiaceae perennial evergreen shrub Feb-Apr None None G2 S2 2B.2 SB_CalBG/RSABG; SB_CRES Development, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral, Coastal scrub 115 1065 375 3495 1974-01-01
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
Eriogonum nudum var. murinum mouse buckwheat Polygonaceae perennial herb Jun-Nov None None G5T2 S2 1B.2 BLM_S Grazing, Non-native plant impacts, Other, Road/trail construction/maint. Chaparral, Cismontane woodland, Valley and foothill grassland Sandy 365 1130 1200 3710 Yes 1974-01-01
No Photo Available
Eriogonum truncatum Mt. Diablo buckwheat Polygonaceae annual herb Apr-Sep(Nov-Dec) None None G1 S1 1B.1 SB_UCBG Development, Non-native plant impacts Chaparral, Coastal scrub, Valley and foothill grassland Sandy 3 350 10 1150 Yes 1974-01-01
No Photo Available
Fremontodendron mexicanum Mexican flannelbush Malvaceae perennial evergreen shrub Mar-Jun FE CR G2 S1 1B.1 SB_CalBG/RSABG; SB_CRES Erosion/runoff, Foot traffic/trampling, Insufficient population/stand size, Non-native plant impacts, Other, Vandalism/dumping/litter Chaparral, Cismontane woodland, Closed-cone coniferous forest Gabbroic, Serpentine 10 716 35 2350 1974-01-01
No Photo Available
Galium glabrescens ssp. modocense Modoc bedstraw Rubiaceae perennial herb Jun-Aug None None G4T3 S3 1B.2 BLM_S; USFS_S Erosion/runoff, Foot traffic/trampling, Grazing, Improper burning regime, Road/trail construction/maint. Great Basin scrub (gravelly, rocky, talus) 1550 2835 5085 9300 Yes 1980-01-01 Photo of Galium glabrescens ssp. modocense
© Gary Schoolcraft and CNPS
Galium munzii Munz's bedstraw Rubiaceae perennial herb May-Jul None None G4G5 S4 4.3 Great Basin scrub, Lower montane coniferous forest, Pinyon and juniper woodland, Upper montane coniferous forest 1100 3330 3610 10925 1974-01-01
No Photo Available
Gentiana setigera Mendocino gentian Gentianaceae perennial herb (Apr-Jul)Aug-Sep None None G2 S2 1B.2 BLM_S; USFS_S Altered flood/tidal/hydrologic regime, Mining, ORV activity, Other, Road/trail construction/maint., Surface water diversion Lower montane coniferous forest, Meadows and seeps Mesic 335 1065 1100 3495 1980-01-01 Photo of Gentiana setigera
©2008 Keir Morse
Gilia tenuiflora ssp. arenaria Monterey gilia Polemoniaceae annual herb Apr-Jun FE CT G3G4T2 S2 1B.2 SB_CalBG/RSABG Biocides, Development, Erosion/runoff, Foot traffic/trampling, Landfill, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral (maritime), Cismontane woodland, Coastal dunes, Coastal scrub Openings, Sandy 0 45 0 150 Yes 1980-01-01 Photo of Gilia tenuiflora ssp. arenaria
© 2021 Neal Kramer
Githopsis diffusa ssp. filicaulis Mission Canyon bluecup Campanulaceae annual herb Apr-Jun None None G5T1Q S1 3.1 USFS_S Chaparral (disturbed areas, mesic) 450 700 1475 2295 Yes 1980-01-01
No Photo Available
Deinandra mohavensis Mojave tarplant Asteraceae annual herb (Jan-May)Jun-Oct None CE G3 S3 1B.3 BLM_S; SB_CalBG/RSABG; USFS_S Altered flood/tidal/hydrologic regime, Development, Disking, Foot traffic/trampling, Grazing, Logging, Military operations, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Surface water diversion, Wood cutting or brush clearing Chaparral, Coastal scrub, Riparian scrub Mesic 640 1600 2100 5250 Yes 1974-01-01
No Photo Available
Layia munzii Munz's tidy-tips Asteraceae annual herb Mar-Apr None None G2 S2 1B.2 BLM_S; SB_SBBG Agriculture, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint. Chenopod scrub, Valley and foothill grassland (alkaline clay) 150 700 490 2295 Yes 1988-01-01 Photo of Layia munzii
© 2017 Neal Kramer
Lilaeopsis masonii Mason's lilaeopsis Apiaceae perennial rhizomatous herb Apr-Nov None CR G2 S2 1B.1 Altered flood/tidal/hydrologic regime, Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Pollution, Recreational use (non-ORV), Surface water diversion, Vandalism/dumping/litter, Waterway bank protection/maintenance Marshes and swamps (brackish, freshwater), Riparian scrub 0 10 0 35 Yes 1974-01-01
No Photo Available
Leptosiphon nuttallii ssp. howellii Mt. Tedoc leptosiphon Polemoniaceae perennial herb May-Aug None None G5T2 S2 1B.3 SB_BerrySB; USFS_S Lower montane coniferous forest (serpentinite) 1220 2800 4005 9185 Yes 1988-01-01 Photo of Leptosiphon nuttallii ssp. howellii
©2010 Julie Kierstead Nelson
Leptosiphon serrulatus Madera leptosiphon Polemoniaceae annual herb Apr-May None None G3 S3 1B.2 BLM_S; SB_SBBG; USFS_S Erosion/runoff, Other, Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland, Lower montane coniferous forest 300 1300 985 4265 Yes 1980-01-01 Photo of Leptosiphon serrulatus
© 2008 Chris Winchell
Lupinus citrinus var. deflexus Mariposa lupine Fabaceae annual herb Apr-May None CT G2T1T2 S1S2 1B.2 Development, Grazing, ORV activity Chaparral, Cismontane woodland Granitic, Sandy 400 610 1310 2000 Yes 1974-01-01
No Photo Available
Lupinus duranii Mono Lake lupine Fabaceae perennial herb May-Aug None None G2 S2 1B.2 BLM_S; SB_SBBG; USFS_S Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Great Basin scrub, Subalpine coniferous forest, Upper montane coniferous forest Gravelly 2000 3000 6560 9845 Yes 1974-01-01
No Photo Available
Lupinus albifrons var. medius Mountain Springs bush lupine Fabaceae perennial shrub Mar-May None None G4T2 S2 1B.3 BLM_S; SB_CalBG/RSABG; SB_USDA Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Pinyon and juniper woodland, Sonoran desert scrub 425 1370 1395 4495 1980-01-01
No Photo Available
Lupinus magnificus var. hesperius Mcgee Meadows lupine Fabaceae perennial herb Apr-Jun None None G3T1Q S1 1B.3 BLM_S Great Basin scrub, Upper montane coniferous forest Sandy 1260 1830 4135 6005 Yes 1980-01-01
No Photo Available
Lupinus milobakeri Milo Baker's lupine Fabaceae annual herb Jun-Sep None CT G1Q S1 1B.1 SB_CalBG/RSABG; SB_UCBG Agriculture, Biocides, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing Cismontane woodland (often roadsides), Valley and foothill grassland 395 430 1295 1410 Yes 1974-01-01
No Photo Available
Malacothamnus mendocinensis Mendocino bush-mallow Malvaceae perennial deciduous shrub Jun-Aug None None G1Q S1 1B.1 Dam/Inundation, Improper burning regime, Non-native plant impacts, Other, Road/trail construction/maint. Chaparral, Cismontane woodland Roadsides, Rocky 215 230 705 755 Yes 1974-01-01 Photo of Malacothamnus mendocinensis
© 2021 Keir Morse
Diplacus mohavensis Mojave monkeyflower Phrymaceae annual herb Apr-Jun None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG Development, Foot traffic/trampling, Grazing, 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 Gravelly (sometimes), Sandy (sometimes), Washes (often) 600 1200 1970 3935 Yes 1988-01-01 Photo of Diplacus mohavensis
© 2019 Joey Malone
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 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 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
Sidalcea hickmanii ssp. viridis Marin checkerbloom Malvaceae perennial herb May-Jun None None G2TH SH 1B.1 Foot traffic/trampling, Improper burning regime Chaparral (serpentinite) 50 430 165 1410 Yes 1974-01-01
No Photo Available
Triglochin palustris marsh arrow-grass Juncaginaceae perennial rhizomatous herb Jul-Aug None None G5 S2 2B.3 SB_CalBG/RSABG Foot traffic/trampling Marshes and swamps (freshwater), Meadows and seeps, Subalpine coniferous forest Mesic 2285 3700 7495 12140 1980-01-01
No Photo Available
Monardella leucocephala Merced monardella Lamiaceae annual herb May-Aug None None GX SX 1A Agriculture, Grazing, Mining, Recreational use (non-ORV) Valley and foothill grassland (mesic, sandy) 35 100 115 330 Yes 1974-01-01 Photo of Monardella leucocephala
© 2020 Hannah Kang
Navarretia rosulata Marin County navarretia Polemoniaceae annual herb May-Jul None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG Foot traffic/trampling, Wood cutting or brush clearing Chaparral, Closed-cone coniferous forest Rocky, Serpentine 200 635 655 2085 Yes 1980-01-01
No Photo Available
Navarretia leucocephala ssp. plieantha many-flowered navarretia Polemoniaceae annual herb May-Jun FE CE G4T1 S1 1B.2 SB_CalBG/RSABG Agriculture, Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Road/trail construction/maint. Vernal pools (volcanic ash) 30 950 100 3115 Yes 1974-01-01
No Photo Available
Cylindropuntia munzii Munz's cholla Cactaceae perennial stem May None None G3 S1 1B.3 BLM_S; IUCN_LC; SB_CalBG/RSABG Military operations Sonoran desert scrub (gravelly, sandy) 150 600 490 1970 1980-01-01
No Photo Available
Streptanthus morrisonii ssp. morrisonii Morrison's jewelflower Brassicaceae perennial herb May-Sep None None G2T1? S1? 1B.2 BLM_S Chaparral (rocky, serpentinite, talus) 120 585 395 1920 Yes 1974-01-01
No Photo Available
Thelypodium milleflorum many-flowered thelypodium Brassicaceae perennial herb Apr-Jun None None G5 S3? 2B.2 Grazing, Mining, ORV activity, Other, Road/trail construction/maint. Chenopod scrub, Great Basin scrub (sandy) 1220 2500 4005 8205 2001-01-01
No Photo Available
Lomatium foeniculaceum ssp. macdougalii Macdougal's lomatium Apiaceae perennial herb Apr-Jul None None G5T4T5 S3 2B.2 Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Chenopod scrub, Great Basin scrub, Lower montane coniferous forest, Pinyon and juniper woodland Volcanic 1200 2065 3935 6775 2001-01-01
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
Ranunculus macounii Macoun's buttercup Ranunculaceae perennial herb Jun-Jul None None G5 S2S3 2B.2 IUCN_LC Development Great Basin scrub, Meadows and seeps, Pinyon and juniper woodland Mesic 1400 1800 4595 5905 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
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
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
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
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
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
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
Carlquistia muirii Muir's tarplant Asteraceae perennial rhizomatous herb Jul-Aug(Oct) None None G2 S2 1B.3 BLM_S; SB_CalBG/RSABG; USFS_S Development, Erosion/runoff, Foot traffic/trampling, Logging, Road/trail construction/maint. Chaparral (montane), Lower montane coniferous forest, Upper montane coniferous forest Granitic 755 2500 2475 8205 Yes 1980-01-01
No Photo Available
Ribes canthariforme Moreno currant Grossulariaceae perennial deciduous shrub Feb-Apr None None G2 S2 1B.3 SB_CRES; USFS_S Development, Improper burning regime, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Riparian scrub 340 1200 1115 3935 Yes 1974-01-01
No Photo Available
Ribes marshallii Marshall's gooseberry Grossulariaceae perennial deciduous shrub Jun-Jul None None G4 S4 4.3 Closed-cone coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest 1200 2100 3935 6890 1974-01-01 Photo of Ribes marshallii
©2017 Dana York
Sclerocactus polyancistrus Mojave fish-hook cactus Cactaceae perennial stem Apr-Jul None None G3 S3 4.2 IUCN_LC; SB_CalBG/RSABG Great Basin scrub, Joshua tree "woodland", Mojavean desert scrub Carbonate (usually) 640 2320 2100 7610 1974-01-01
No Photo Available
Selaginella leucobryoides Mojave spike-moss Selaginellaceae perennial rhizomatous herb Jun None None G4 S3S4 4.3 Great Basin scrub, Lower montane coniferous forest, Mojavean desert scrub, Pinyon and juniper woodland Carbonate (usually), Rocky 600 3150 1970 10335 Yes 1974-01-01
No Photo Available
Senecio pattersonensis Mt. Patterson senecio Asteraceae perennial rhizomatous herb Jul-Aug(Sep) None None G3 S3 1B.3 SB_SBBG; USFS_S Alpine boulder and rock field 2900 3720 9515 12205 1980-01-01
No Photo Available
Silene marmorensis Marble Mountain campion Caryophyllaceae perennial herb Jun-Aug None None G2 S2 1B.2 Biocides, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest 170 1250 560 4100 Yes 1980-01-01 Photo of Silene marmorensis
©2021 Dana York
Stipa arida Mormon needle grass Poaceae perennial herb May-Jul None None G5 S3? 2B.3 SB_CalBG/RSABG; SB_USDA Development, Grazing, Mining, Non-native plant impacts, ORV activity, Road/trail construction/maint. Joshua tree "woodland", Pinyon and juniper woodland Carbonate 500 2570 1640 8430 1974-01-01
No Photo Available
Streptanthus albidus ssp. albidus Metcalf Canyon jewelflower Brassicaceae annual herb Apr-Jul FE None G2T1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Biocides, Development, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Valley and foothill grassland (serpentinite) 45 800 150 2625 Yes 1974-01-01 Photo of Streptanthus albidus ssp. albidus
© 2015 Aaron Schusteff
Streptanthus albidus ssp. peramoenus most beautiful jewelflower Brassicaceae annual herb (Mar)Apr-Sep(Oct) None None G2T2 S2 1B.2 SB_CalBG/RSABG; SB_UCBG; USFS_S Development, Erosion/runoff, Feral pigs, Foot traffic/trampling, Grazing, Improper burning regime, Insufficient population/stand size, Landfill, Military operations, Mining, Non-native plant impacts, ORV activity, Other, Over-collecting/poaching, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Waterway bank protection/maintenance Chaparral, Cismontane woodland, Valley and foothill grassland Serpentine 95 1000 310 3280 Yes 1988-01-01 Photo of Streptanthus albidus ssp. peramoenus
© 1994 Robert E. Preston, Ph.D.
Streptanthus callistus Mt. Hamilton jewelflower Brassicaceae annual herb Apr-May None None G1 S1 1B.2 Erosion/runoff, Non-native plant impacts, Road/trail construction/maint. Chaparral, Cismontane woodland 600 790 1970 2590 Yes 1974-01-01 Photo of Streptanthus callistus
© 2012 Aaron Schusteff
Streptanthus glandulosus ssp. pulchellus Mt. Tamalpais bristly jewelflower Brassicaceae annual herb May-Jul(Aug) None None G4T2 S2 1B.2 SB_CalBG/RSABG Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Chaparral, Valley and foothill grassland Serpentine 150 800 490 2625 Yes 1980-01-01
No Photo Available
Streptanthus hispidus Mt. Diablo jewelflower Brassicaceae annual herb Mar-Jun None None G2 S2 1B.3 SB_CalBG/RSABG Foot traffic/trampling, Non-native animal impacts, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Valley and foothill grassland Rocky 365 1200 1200 3935 Yes 1974-01-01 Photo of Streptanthus hispidus
© 2011 Aaron Schusteff
Streptanthus oliganthus Masonic Mountain jewelflower Brassicaceae perennial herb Jun-Jul None None G3 S3 1B.2 BLM_S; USFS_S Erosion/runoff, Improper burning regime, Military operations, Mining, Road/trail construction/maint. Pinyon and juniper woodland (granitic, rocky, volcanic) 1980 3050 6495 10005 1974-01-01
No Photo Available
Micropus amphibolus Mt. Diablo cottonweed Asteraceae annual herb Mar-May None None G3G4 S3S4 3.2 SB_UCSC Broadleafed upland forest, Chaparral, Cismontane woodland, Valley and foothill grassland Rocky 45 825 150 2705 Yes 1974-01-01 Photo of Micropus amphibolus
© 2008 Aaron Arthur
Trifolium trichocalyx Monterey clover Fabaceae annual herb Apr-Jun FE CE G1 S1 1B.1 SB_UCBG; SB_USDA Development, Improper burning regime, Logging, Mining, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing Closed-cone coniferous forest (burned areas, openings, sandy) 30 305 100 1000 Yes 1974-01-01
No Photo Available
Xylorhiza cognata Mecca-aster Asteraceae perennial herb Jan-Jun None None G2 S2 1B.2 BLM_S; SB_CalBG/RSABG Development, Erosion/runoff, Mining, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Sonoran desert scrub 20 400 65 1310 Yes 1980-01-01
No Photo Available
Arctostaphylos malloryi Mallory's manzanita Ericaceae perennial evergreen shrub Apr-Jul None None G3 S3 4.3 SB_UCSC Chaparral, Lower montane coniferous forest Volcanic 765 1280 2510 4200 Yes 1974-01-01 Photo of Arctostaphylos malloryi
©2009 Timothy D. Ives
Azolla microphylla Mexican mosquito fern Azollaceae annual/perennial herb Aug None None G5 S4 4.2 Marshes and swamps (ponds, slow water) 30 100 100 330 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
Carex incurviformis Mt. Dana sedge Cyperaceae perennial rhizomatous herb Jul-Aug None None G4G5 S4 4.3 Alpine boulder and rock field 3700 4060 12140 13320 1994-01-01
No Photo Available
Carex limosa mud sedge Cyperaceae perennial rhizomatous herb Jun-Aug None None G5 S3 2B.2 IUCN_LC Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Recreational use (non-ORV) Bogs and fens, Lower montane coniferous forest, Marshes and swamps, Meadows and seeps, Upper montane coniferous forest 1200 2700 3935 8860 1994-01-01 Photo of Carex limosa
Steve Matson 2009
Draba subumbellata mound draba Brassicaceae perennial herb Jul None None G3 S3 4.3 Alpine boulder and rock field, Alpine dwarf scrub Carbonate 3000 4115 9845 13500 1994-01-01
No Photo Available
Equisetum palustre marsh horsetail Equisetaceae perennial rhizomatous herb Unk None None G5 S1S3 3 Marshes and swamps 45 1000 150 3280 1994-01-01
No Photo Available
Erigeron mariposanus Mariposa daisy Asteraceae perennial herb Jun-Aug None None GX SX 1A Cismontane woodland 600 800 1970 2625 Yes 1994-01-01
No Photo Available
Eriogonum umbellatum var. humistratum Mt. Eddy buckwheat Polygonaceae perennial herb May-Oct None None G5T4 S4 4.3 Alpine boulder and rock field, Chaparral, Meadows and seeps, Subalpine coniferous forest, Upper montane coniferous forest Rocky, Serpentine (usually) 1700 2800 5580 9185 Yes 1980-01-01 Photo of Eriogonum umbellatum var. humistratum
©2001 Julie Kierstead Nelson
Fritillaria lanceolata var. tristulis Marin checker lily Liliaceae perennial bulbiferous herb Feb-May None None G5T2 S2 1B.1 SB_UCSC Development, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Coastal bluff scrub, Coastal prairie, Coastal scrub 15 150 50 490 Yes 1994-01-01 Photo of Fritillaria lanceolata var. tristulis
© 2020 Barry Rice
Hulsea mexicana Mexican hulsea Asteraceae annual/perennial herb Apr-Jun None None G3 S1 2B.3 SB_CalBG/RSABG Chaparral (often burned areas or disturbed areas, volcanic) 1200 1200 3935 3935 1994-01-01 Photo of Hulsea mexicana
© 2018 Aaron Schusteff
Lathyrus palustris marsh pea Fabaceae perennial herb Mar-Aug None None G5 S2 2B.2 Altered flood/tidal/hydrologic regime, Development, Logging, Non-native plant impacts, ORV activity, Other Bogs and fens, Coastal prairie, Coastal scrub, Lower montane coniferous forest, Marshes and swamps, North Coast coniferous forest Mesic 1 100 5 330 1994-01-01 Photo of Lathyrus palustris
© 2016 Keir Morse
Nama stenocarpa mud nama Namaceae annual/perennial herb Jan-Jul None None G4G5 S1S2 2B.2 Development, Surface water diversion Marshes and swamps (lake margins, riverbanks) 5 500 15 1640 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
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
Scutellaria galericulata marsh skullcap Lamiaceae perennial rhizomatous herb Jun-Sep None None G5 S2 2B.2 Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Surface water diversion, Wood cutting or brush clearing Lower montane coniferous forest, Marshes and swamps, Meadows and seeps (mesic) 0 2100 0 6890 1994-01-01 Photo of Scutellaria galericulata
© 2021 Scot Loring
Sidalcea malachroides maple-leaved checkerbloom Malvaceae perennial herb (Mar)Apr-Aug None None G3 S3 4.2 Altered flood/tidal/hydrologic regime, Biocides, Development, Foot traffic/trampling, Grazing, Improper burning regime, Logging, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Coastal prairie, Coastal scrub, North Coast coniferous forest, Riparian woodland Disturbed areas (often) 0 730 0 2395 1994-01-01 Photo of Sidalcea malachroides
©2005 Dean Wm. Taylor
Sidalcea oregana ssp. hydrophila marsh checkerbloom Malvaceae perennial herb (Jun)Jul-Aug None None G5T2 S2 1B.2 SB_UCSC Agriculture, Foot traffic/trampling, Grazing, ORV activity, Over-collecting/poaching, Recreational use (non-ORV) Meadows and seeps, Riparian forest Mesic 1100 2300 3610 7545 Yes 1974-01-01
No Photo Available
Stylocline masonii Mason's neststraw Asteraceae annual herb Mar-May None None G1 S1 1B.1 USFS_S Dam/Inundation, Development Chenopod scrub, Pinyon and juniper woodland Sandy 100 1200 330 3935 Yes 1994-01-01
No Photo Available
Stylocline sonorensis mesquite neststraw Asteraceae annual herb Apr None None G3G5 SX 2A Development Sonoran desert scrub (sandy) 425 425 1395 1395 1994-01-01
No Photo Available
Asclepias nyctaginifolia Mojave milkweed Apocynaceae perennial herb May-Jun None None G4? S2 2B.1 Biocides, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, ORV activity, Recreational use (non-ORV), Road/trail construction/maint. Mojavean desert scrub, Pinyon and juniper woodland 875 1700 2870 5580 2001-01-01
No Photo Available
Astragalus didymocarpus var. milesianus Miles' milk-vetch Fabaceae annual herb Mar-Jun None None G5T2 S2 1B.2 Development Coastal scrub (clay) 20 90 65 295 Yes 2001-01-01
No Photo Available
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
Dudleya gnoma munchkin dudleya Crassulaceae perennial herb May None None G1 S1 1B.1 Erosion/runoff, Foot traffic/trampling, Grazing Coastal bluff scrub (gravelly, volcanic) 20 70 65 230 Yes 2001-01-01
No Photo Available
Epilobium palustre marsh willowherb Onagraceae perennial rhizomatous herb Jul-Sep None None G5 S2 2B.3 IUCN_LC Bogs and fens, Meadows and seeps (mesic) 1285 2345 4215 7695 2001-01-01
No Photo Available
Gilia yorkii Monarch gilia Polemoniaceae annual herb May-Jul None None G2 S2 1B.1 USFS_S Non-native plant impacts Chaparral, Cismontane woodland Carbonate 1290 1830 4230 6005 Yes 2001-01-01 Photo of Gilia yorkii
© 2012 Gary A. Monroe
Heterotheca monarchensis Monarch golden-aster Asteraceae perennial herb May-Oct None None G2 S2 1B.1 USFS_S Non-native plant impacts Cismontane woodland (carbonate) 1095 1850 3595 6070 Yes 2001-01-01
No Photo Available
Horkelia cuneata var. puberula mesa horkelia Rosaceae perennial herb Feb-Jul(Sep) None None G4T1 S1 1B.1 SB_CalBG/RSABG; USFS_S Development, Landfill, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (maritime), Cismontane woodland, Coastal scrub Gravelly (sometimes), Sandy (sometimes) 70 810 230 2660 Yes 2001-01-01 Photo of Horkelia cuneata var. puberula
© 2008 Tony Morosco
Lomatium observatorium Mt. Hamilton lomatium Apiaceae perennial herb Mar-May None None G1 S1 1B.2 SB_CalBG/RSABG; SB_UCSC Foot traffic/trampling, Other, Road/trail construction/maint. Cismontane woodland 1219 1330 4000 4365 Yes 2001-01-01
No Photo Available
Malacothrix foliosa ssp. polycephala many-headed malacothrix Asteraceae annual herb Feb-Jun None None G4T3 S3 4.2 SB_SBBG Coastal scrub 60 90 195 295 Yes 2001-01-01
No Photo Available
Microseris paludosa marsh microseris Asteraceae perennial herb Apr-Jun(Jul) None None G2 S2 1B.2 BLM_S; SB_SBBG; SB_UCSC Development, Grazing, Non-native plant impacts Cismontane woodland, Closed-cone coniferous forest, Coastal scrub, Valley and foothill grassland 5 355 15 1165 Yes 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
Sphaeralcea munroana Munro's desert mallow Malvaceae perennial herb May-Jun None None G4 S1 2B.2 Great Basin scrub 2000 2000 6560 6560 2001-01-01
No Photo Available
Toxicoscordion fontanum marsh zigadenus Melanthiaceae perennial bulbiferous herb Apr-Jul None None G3 S3 4.2 SB_UCSC Chaparral, Cismontane woodland, Lower montane coniferous forest, Marshes and swamps, Meadows and seeps Serpentine (often), Vernally Mesic 15 1000 50 3280 Yes 2001-01-01
No Photo Available
Fissidens pauperculus minute pocket moss Fissidentaceae moss None None G3? S2 1B.2 USFS_S Erosion/runoff, Improper burning regime, Logging, Road/trail construction/maint. North Coast coniferous forest (damp coastal soil) 10 1024 35 3360 2001-01-01 Photo of Fissidens pauperculus
©2021 Scot Loring
Erigeron maniopotamicus Mad River fleabane daisy Asteraceae perennial herb May-Aug None None G2? S2? 1B.2 SB_UCSC; USFS_S Grazing, Logging, ORV activity, Other, Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps (openings, dry) Disturbed areas, Openings, Roadsides, Rocky 1275 1500 4185 4920 Yes 2005-01-01 Photo of Erigeron maniopotamicus
©2018 John Doyen
Astragalus pulsiferae var. coronensis Modoc Plateau milk-vetch Fabaceae perennial herb (Apr)May-Jul None None G4T3 S3 4.2 USFS_S Great Basin scrub, Lower montane coniferous forest, Pinyon and juniper woodland Gravelly, Sandy, Volcanic 1345 1890 4415 6200 2005-01-01
No Photo Available
Eriogonum spergulinum var. pratense mountain meadow wild buckwheat Polygonaceae annual herb Jul-Aug None None G4T3 S3 4.3 Alpine boulder and rock field (creeks, meadows), Meadows and seeps Edges (often), Gravelly (usually), Sandy (usually) 1830 3445 6005 11305 Yes 2011-12-27
No Photo Available
Malacothrix similis Mexican malacothrix Asteraceae annual herb Apr-May None None G2G3 SH 2A Coastal dunes 0 40 0 130 2007-04-05
No Photo Available
Clinopodium mimuloides monkey-flower savory Lamiaceae perennial herb Jun-Oct None None G3 S3 4.2 Chaparral, North Coast coniferous forest Mesic, Streambanks 305 1800 1000 5905 Yes 2007-05-04
No Photo Available
Mielichhoferia mielichhoferiana Mielichhofer's copper moss Mielichhoferiaceae moss None None G2G3 S1 2B.3 Subalpine coniferous forest 1975 1975 6480 6480 2008-09-02
No Photo Available
Menodora spinescens var. mohavensis Mojave menodora Oleaceae perennial deciduous shrub Apr-May None None G4T2 S2 1B.2 BLM_S; SB_CalBG/RSABG Development, Landfill, Road/trail construction/maint. Mojavean desert scrub Gravelly, Rocky, Slopes 690 2000 2265 6560 Yes 2011-08-17
No Photo Available
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
Cuscuta pacifica var. papillata Mendocino dodder Convolvulaceae annual vine (parasitic) (Jun)Jul-Oct None None G5T1 S1 1B.2 Coastal dunes (interdune depressions) 0 50 0 165 Yes 2011-09-20
No Photo Available
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
Mentzelia monoensis Mono Craters blazing star Loasaceae annual herb May-Jul None None G2 S2 4.3 Great Basin scrub, Upper montane coniferous forest Disturbed areas, Gravelly 2005 2480 6580 8135 Yes 2012-03-13 Photo of Mentzelia monoensis
© 2021 Joshua M Brokaw
Erysimum menziesii Menzies' wallflower Brassicaceae perennial herb Mar-Sep FE CE G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG Development, Erosion/runoff, Foot traffic/trampling, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Coastal dunes 0 35 0 115 Yes 1974-01-01 Photo of Erysimum menziesii
©2007 Steve Matson
Castilleja ambigua var. meadii Mead's owls-clover Orobanchaceae annual herb (hemiparasitic) Apr-May None None G4T1 S1 1B.1 Non-native plant impacts Meadows and seeps, Vernal pools Clay, Gravelly, Volcanic 450 475 1475 1560 Yes 2013-01-03
No Photo Available
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
Usnea longissima Methuselah's beard lichen Parmeliaceae fruticose lichen (epiphytic) None None G4 S4 4.2 BLM_S Agriculture, Development, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, North Coast coniferous forest 50 1460 165 4790 2014-03-01 Photo of Usnea longissima
© 2021 Scot Loring
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
Micranthes marshallii Marshall's saxifrage Saxifragaceae perennial rhizomatous herb Mar-Aug None None G5 S3 4.3 Riparian forest Rocky, Streambanks 90 2130 295 6990 2016-07-06 Photo of Micranthes marshallii
2017 Barrett Jeffery
Pleuridium mexicanum Mexican earthmoss Ditrichaceae moss None None G5 S1 2B.1 Chaparral Sandstone 440 440 1445 1445 2014-07-28
No Photo Available
Trifolium piorkowskii maverick clover Fabaceae annual herb Apr-May None None G2 S2 1B.2 Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland (mesic), Vernal pools Clay, Openings, Streambanks (often), Volcanic 160 680 525 2230 2016-11-10 Photo of Trifolium piorkowskii
©2018 Al Keuter
Streptanthus anomalus Mount Burdell jewelflower Brassicaceae annual herb May-Jun None None G1 S1 1B.1 SB_CalBG/RSABG Foot traffic/trampling, Grazing Cismontane woodland (openings) Openings, Serpentine 50 150 165 490 Yes 2019-08-21 Photo of Streptanthus anomalus
© 2015 Aaron Schusteff
Frasera albicaulis var. modocensis Modoc green-gentian Gentianaceae perennial herb May-Jul None None G5T3T4 S2S3 2B.3 Great Basin grassland, Upper montane coniferous forest (sometimes) Openings 900 1750 2955 5740 2018-12-10 Photo of Frasera albicaulis var. modocensis
©2009 Keir Morse
Navarretia miwukensis Mi-Wuk navarretia Polemoniaceae annual herb May-Jun(Jul) None None G1G2 S1S2 1B.2 SB_UCSC Development, Logging, ORV activity Lower montane coniferous forest Openings 800 1500 2625 4920 Yes 2019-06-14
No Photo Available
Oxytropis oreophila var. juniperina mountain oxytrope Fabaceae perennial herb Jun None None G5T4T5 S1 2B.1 Foot traffic/trampling, Non-native animal impacts, Non-native plant impacts, ORV activity Pinyon and juniper woodland 2150 2150 7055 7055 2020-06-12
No Photo Available
Sedum marmorense Marble Mountains stonecrop Crassulaceae perennial herb Jul-Aug None None G1G2 S1S2 1B.2 Improper burning regime, Over-collecting/poaching Subalpine coniferous forest, Upper montane coniferous forest Openings, Rock crevices, Rocky, Talus 1875 2345 6150 7695 2021-05-14 Photo of Sedum marmorense
©2016 Dana York
Monardella exilis Mojave monardella Lamiaceae annual herb Apr-Sep None None G3? S3 4.2 Chenopod scrub, Desert dunes, Great Basin scrub, Joshua tree "woodland", Lower montane coniferous forest, Mojavean desert scrub, Pinyon and juniper woodland Sandy 600 2050 1970 6725 2022-08-04
No Photo Available
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
Allium incomptum Minnesota Mountain onion Alliaceae perennial bulbiferous herb Apr-May None None G1 S1 1B.3 Chaparral, Lower montane coniferous forest Gravelly, Openings, Rocky 1185 1295 3890 4250 2023-04-05 Photo of Allium incomptum
© 2023 Julie Kierstead

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 23 April 2024].