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CNPS Rare Plant Inventory


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71 matches found. Click on scientific name for details

Search Criteria: CRPR is one of [3,3]

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
Agrostis hendersonii Henderson's bent grass Poaceae annual herb Apr-Jun None None G2Q S2 3.2 Dam/Inundation, Development, Grazing, Non-native plant impacts, ORV activity, Other, Vandalism/dumping/litter Valley and foothill grassland (mesic), Vernal pools 70 305 230 1000 1974-01-01 Photo of Agrostis hendersonii
©2005 Steve Matson
Calystegia malacophylla var. berryi Berry's morning-glory Convolvulaceae perennial rhizomatous herb Jul-Aug None None G4G5T2Q S2 3.3 Chaparral, Lower montane coniferous forest 610 2440 2000 8005 Yes 1980-01-01
No Photo Available
Dudleya alainae Banner dudleya Crassulaceae perennial herb Apr-Jul None None G2Q S2 3.2 SB_CalBG/RSABG; SB_CRES Chaparral, Lower montane coniferous forest, Sonoran desert scrub Rocky 740 1200 2430 3935 Yes 1988-01-01
No Photo Available
Crocanthemum suffrutescens Bisbee Peak rush-rose Cistaceae perennial evergreen shrub Apr-Aug None None G2?Q S2? 3.2 Development, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Chaparral Burned areas (often), Disturbed areas (often), Gabbroic (often) 75 670 245 2200 Yes 1974-01-01
No Photo Available
Cardamine nuttallii var. gemmata yellow-tubered toothwort Brassicaceae perennial rhizomatous herb Apr-May(Jun) None None G5T3Q S2 3.3 Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter Lower montane coniferous forest, North Coast coniferous forest Serpentine 100 700 330 2295 1974-01-01 Photo of Cardamine nuttallii var. gemmata
©2004 Norman Jensen
Brodiaea rosea Indian Valley brodiaea Themidaceae perennial bulbiferous herb May-Jun None CE G2Q S2 3.1 BLM_S; USFS_S Dam/Inundation, Grazing, Mining, Non-native plant impacts, ORV activity, Other, Surface water diversion, Vandalism/dumping/litter Chaparral, Cismontane woodland, Closed-cone coniferous forest, Valley and foothill grassland Serpentine 335 1450 1100 4755 Yes 1974-01-01 Photo of Brodiaea rosea
© 2014 Robert E. Preston, Ph.D.
Corethrogyne leucophylla branching beach aster Asteraceae perennial herb May-Dec None None G3Q S3 3.2 Closed-cone coniferous forest, Coastal dunes 3 60 10 195 Yes 1974-01-01
No Photo Available
Delphinium gypsophilum ssp. parviflorum small-flowered gypsum-loving larkspur Ranunculaceae perennial herb (Mar)Apr-Jun None None G4T2T3Q S2S3 3.2 Cismontane woodland, Valley and foothill grassland Clay, Rocky, Serpentine (sometimes) 190 350 625 1150 Yes 1974-01-01
No Photo Available
Dendromecon harfordii var. harfordii north island bush-poppy Papaveraceae perennial evergreen shrub Mar-Nov None None G3T3Q S3 3.2 SB_SBBG Chaparral, Closed-cone coniferous forest Rocky 15 420 50 1380 Yes 1980-01-01
No Photo Available
Dendromecon harfordii var. rhamnoides south island bush-poppy Papaveraceae perennial evergreen shrub Apr-Jun None None G4T1Q S1 3.1 Foot traffic/trampling, Grazing, Non-native animal impacts Chaparral, Cismontane woodland, Coastal scrub 150 520 490 1705 Yes 1974-01-01
No Photo Available
Ditaxis serrata var. californica California ditaxis Euphorbiaceae perennial herb Mar-Dec None None G5T3T4 S2? 3.2 Development, ORV activity, Other, Road/trail construction/maint. Sonoran desert scrub 30 1000 100 3280 Yes 1974-01-01
No Photo Available
Iris bracteata Siskiyou iris Iridaceae perennial rhizomatous herb May-Jun None None G4G5 S3 3.3 Broadleafed upland forest, Lower montane coniferous forest Serpentine 180 1070 590 3510 1974-01-01 Photo of Iris bracteata
©2012 Aaron Schusteff
Lewisia cotyledon var. howellii Howell's lewisia Montiaceae perennial herb Apr-Jul None None G4T4Q S3 3.2 Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest Rocky 150 2010 490 6595 1980-01-01 Photo of Lewisia cotyledon var. howellii
© 2021 Scot Loring
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
Rubus glaucifolius var. ganderi Cuyamaca raspberry Rosaceae perennial evergreen shrub May-Jun None None G5T1Q S1 3.1 Other Lower montane coniferous forest (gabbroic) 1200 1675 3935 5495 Yes 1980-01-01
No Photo Available
Salvia dorrii var. incana fleshy sage Lamiaceae perennial evergreen shrub May-Jul None None G5T4 S2 3 Great Basin scrub, Pinyon and juniper woodland 300 1295 985 4250 1984-01-01 Photo of Salvia dorrii var. incana
©2009 Keir Morse
Eschscholzia procera Kernville poppy Papaveraceae perennial herb Jun-Jul(Aug) None None G1?Q S1? 3 SB_CalBG/RSABG Cismontane woodland (sandy floodplain) 810 1025 2660 3365 Yes 1974-01-01
No Photo Available
Fritillaria eastwoodiae Butte County fritillary Liliaceae perennial bulbiferous herb Mar-Jun None None G3Q S3 3.2 USFS_S Agriculture, Biocides, Development, Disking, 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 Chaparral, Cismontane woodland, Lower montane coniferous forest (openings) Serpentine (sometimes) 50 1500 165 4920 1974-01-01 Photo of Fritillaria eastwoodiae
©2009 Sierra Pacific Industries
Galium oreganum Oregon bedstraw Rubiaceae perennial rhizomatous herb May-Sep None None G4G5 S1S2 3 Lower montane coniferous forest, North Coast coniferous forest 1500 1500 4920 4920 1974-01-01 Photo of Galium oreganum
© 2021 Scot Loring
Gentiana affinis var. parvidentata small-toothed prairie gentian Gentianaceae perennial herb Jul-Sep None None G5T2T4Q S1S3 3 Great Basin scrub, Lower montane coniferous forest 1220 1830 4005 6005 1980-01-01
No Photo Available
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
Grindelia hirsutula var. maritima San Francisco gumplant Asteraceae perennial herb Jun-Sep None None G5T1Q S1 3.2 SB_UCSC Development, Foot traffic/trampling, Non-native plant impacts, Other, Road/trail construction/maint. Coastal bluff scrub, Coastal scrub, Valley and foothill grassland Sandy (sometimes), Serpentine (sometimes) 15 400 50 1310 Yes 1974-01-01 Photo of Grindelia hirsutula var. maritima
Robert Potts © 2001 California Academy of Sciences
Hackelia brevicula Poison Canyon stickseed Boraginaceae perennial herb Jul-Aug None None G3 S3 3.3 Grazing Broadleafed upland forest, Great Basin scrub, Subalpine coniferous forest Openings, Rocky (often) 2600 3200 8530 10500 1974-01-01 Photo of Hackelia brevicula
© 2015 Steve Matson
Heuchera rubescens var. versicolor San Diego County alumroot Saxifragaceae perennial rhizomatous herb May-Jun None None G5T4 S2 3.3 Chaparral, Lower montane coniferous forest Rocky 1500 4000 4920 13125 1974-01-01 Photo of Heuchera rubescens var. versicolor
© 2013 Richard Spellenberg
Lupinus albifrons var. abramsii Abrams' lupine Fabaceae perennial herb Apr-Jun None None G5T3?Q S3? 3.2 IUCN_NT Broadleafed upland forest, Chaparral, Coastal scrub, Lower montane coniferous forest, Valley and foothill grassland Serpentine (sometimes) 125 2000 410 6560 Yes 1974-01-01
No Photo Available
Lupinus arboreus var. eximius San Mateo tree lupine Fabaceae perennial evergreen shrub Apr-Jul None None G2Q S2 3.2 Chaparral, Coastal scrub 90 550 295 1805 Yes 1980-01-01
No Photo Available
Lycium brevipes var. hassei Santa Catalina Island desert-thorn Solanaceae perennial deciduous shrub Jun(Aug) None None G5T1Q S1 3.1 Development, Non-native plant impacts, Road/trail construction/maint. Coastal bluff scrub, Coastal scrub 65 300 215 985 Yes 1974-01-01
No Photo Available
Malacothamnus helleri Heller's bush-mallow Malvaceae perennial deciduous shrub May-Jul None None G2Q S2 3.3 Chaparral (sandstone), Riparian woodland (gravel) 305 635 1000 2085 Yes 1974-01-01 Photo of Malacothamnus helleri
© 2017 Keir Morse
Erythranthe acutidens Kings River monkeyflower Phrymaceae annual herb Apr-Jul None None G2G3 S2S3 3 Cismontane woodland, Lower montane coniferous forest 305 1220 1000 4005 Yes 1974-01-01 Photo of Erythranthe acutidens
Barry Breckling
Monardella antonina ssp. antonina San Antonio Hills monardella Lamiaceae perennial rhizomatous herb Jun-Aug None None G4T1T3Q S1S3 3 Chaparral, Cismontane woodland 320 1000 1050 3280 Yes 1980-01-01
No Photo Available
Myosurus minimus ssp. apus little mousetail Ranunculaceae annual herb Mar-Jun None None G5T2Q S2 3.1 SB_CRES Agriculture, Development, Disking, Grazing, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Valley and foothill grassland, Vernal pools (alkaline) 20 640 65 2100 1980-01-01
No Photo Available
Opuntia wigginsii Wiggins' cholla Cactaceae perennial stem Mar None None G3?Q S1? 3.3 Road/trail construction/maint. Sonoran desert scrub (sandy) 30 885 100 2905 1974-01-01
No Photo Available
Jensia yosemitana Yosemite tarplant Asteraceae annual herb (Apr)May-Jul None None G3 S3 3.2 Lower montane coniferous forest, Meadows and seeps 1200 2300 3935 7545 Yes 1994-01-01
No Photo Available
Arabis repanda var. greenei Greene's rockcress Brassicaceae perennial herb Jun-Aug None None G5T3Q S3 3.3 Subalpine coniferous forest, Upper montane coniferous forest Granitic, Rocky (sometimes), Sandy (sometimes), Talus 2345 3600 7695 11810 Yes 2001-01-01
No Photo Available
Lewisia kelloggii ssp. hutchisonii Hutchison's lewisia Montiaceae perennial herb (Apr)May-Aug None None G3G4T3Q S3 3.2 USFS_S Upper montane coniferous forest Openings 765 2365 2510 7760 Yes 2001-01-01 Photo of Lewisia kelloggii ssp. hutchisonii
Dean Wm. Taylor 2006
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
Lessingia hololeuca woolly-headed lessingia Asteraceae annual herb Jun-Oct None None G2G3 S2S3 3 Broadleafed upland forest, Coastal scrub, Lower montane coniferous forest, Valley and foothill grassland Clay, Serpentine 15 305 50 1000 Yes 1994-01-01 Photo of Lessingia hololeuca
© 2015 Aaron Schusteff
Tiarella trifoliata var. trifoliata trifoliate laceflower Saxifragaceae perennial rhizomatous herb (May)Jun-Aug None None G5T5 S2S3 3.2 Lower montane coniferous forest, North Coast coniferous forest Edges, Streambanks 170 1500 560 4920 1980-01-01 Photo of Tiarella trifoliata var. trifoliata
© 2021 Scot Loring
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
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
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
Ribes amarum var. hoffmannii Hoffmann's bitter gooseberry Grossulariaceae perennial deciduous shrub Mar-Apr None None G4?T3 S3 3 Chaparral, Riparian woodland 5 1190 15 3905 Yes 1984-01-01
No Photo Available
Scutellaria holmgreniorum Holmgren's skullcap Lamiaceae perennial rhizomatous herb May-Jul None None G3Q S3 3.3 Grazing Great Basin scrub, Pinyon and juniper woodland Clay, Volcanic 1310 1735 4300 5695 1984-01-01
No Photo Available
Stipa lemmonii var. pubescens pubescent needle grass Poaceae perennial herb May-Jul None None G5T1?Q S1? 3.2 Chaparral, Lower montane coniferous forest Serpentine 1030 1315 3380 4315 Yes 1994-01-01
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
Vaccinium coccineum Siskiyou Mountains huckleberry Ericaceae perennial deciduous shrub Jun-Aug None None G3Q S3 3.3 Lower montane coniferous forest, Upper montane coniferous forest Serpentine (often) 1095 2135 3595 7005 1974-01-01
No Photo Available
Camissoniopsis lewisii Lewis' evening-primrose Onagraceae annual herb Mar-May(Jun) None None G4 S4 3 Cismontane woodland, Coastal bluff scrub, Coastal dunes, Coastal scrub, Valley and foothill grassland Clay (sometimes), Sandy (sometimes) 0 300 0 985 1994-01-01
No Photo Available
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 biolettii streamside daisy Asteraceae perennial herb Jun-Oct None None G3? S3? 3 Broadleafed upland forest, Cismontane woodland, North Coast coniferous forest Mesic, Rocky 30 1100 100 3610 Yes 1994-01-01 Photo of Erigeron biolettii
©2015 Doug Wirtz
Hordeum intercedens vernal barley Poaceae annual herb Mar-Jun None None G3G4 S3S4 3.2 SB_CalBG/RSABG Coastal dunes, Coastal scrub, Valley and foothill grassland (depressions, saline flats), Vernal pools 5 1000 15 3280 1994-01-01
No Photo Available
Lathyrus sulphureus var. argillaceus dubious pea Fabaceae perennial herb Apr-May None None G5T1T2Q S1S2 3 Foot traffic/trampling, Grazing, Road/trail construction/maint. Cismontane woodland, Lower montane coniferous forest, Upper montane coniferous forest 150 930 490 3050 Yes 1994-01-01
No Photo Available
Enceliopsis nudicaulis var. corrugata Ash Meadows daisy Asteraceae perennial herb May-Jun FT None G5T1T2Q S1 3.3 Mojavean desert scrub Carbonate, Clay, Gravelly 1235 1405 4050 4610 1980-01-01
No Photo Available
Eriastrum tracyi Tracy's eriastrum Polemoniaceae annual herb May-Jul None CR G3Q S3 3.2 USFS_S 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, Wood cutting or brush clearing Chaparral, Cismontane woodland, Valley and foothill grassland 315 1780 1035 5840 Yes 1974-01-01 Photo of Eriastrum tracyi
© 2012 Neal Kramer
Lupinus latifolius var. barbatus bearded lupine Fabaceae perennial herb Jun-Jul None None G5T2Q S2 3.2 USFS_S Upper montane coniferous forest (mesic) 1500 2500 4920 8205 2001-01-01
No Photo Available
Sedum pinetorum Pine City sedum Crassulaceae perennial herb Jul None None GUGHQ SH 3 Alpine boulder and rock field (possibly), Subalpine coniferous forest (possibly) Rocky, Slopes, Volcanic 2650 2650 8695 8695 Yes 1974-01-01
No Photo Available
Hecastocleis shockleyi prickle-leaf Asteraceae perennial evergreen shrub May-Jul None None G4 S4 3 Chenopod scrub, Mojavean desert scrub Carbonate (often), Rocky, Slopes, Washes 1200 2200 3935 7220 1974-01-01 Photo of Hecastocleis shockleyi
© 2013 Aaron Schusteff
Crataegus castlegarensis Castlegar hawthorne Rosaceae perennial deciduous shrub May-Jun(Jul) None None G5 S3? 3 Riparian woodland (moist rocky loam) 0 1455 0 4775 2006-06-28 Photo of Crataegus castlegarensis
©2008 John Dittes
Cypripedium parviflorum var. makasin northern yellow lady's-slipper Orchidaceae perennial herb May-Aug None None G5T4T5 S1 3.1 Bogs and fens, Meadows and seeps Mesic 0 1500 0 4920 2006-09-29
No Photo Available
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
Cuscuta californica var. apiculata pointed dodder Convolvulaceae annual vine (parasitic) Feb-Aug None None G5T3 S3? 3 Mojavean desert scrub, Sonoran desert scrub Sandy 0 500 0 1640 2007-06-13
No Photo Available
Lewisia kelloggii ssp. kelloggii Kellogg's lewisia Montiaceae perennial herb (Apr)May-Aug None None G3G4T2T3Q S2S3 3.2 USFS_S Upper montane coniferous forest Openings 1465 2365 4805 7760 Yes 2013-10-02 Photo of Lewisia kelloggii ssp. kelloggii
© 2019 Barry Breckling
Berberis higginsiae Higgin's barberry Berberidaceae perennial shrub Mar-Apr None None G3Q S1 3.2 Development, Other Chaparral, Sonoran desert scrub Granitic (sometimes), Rocky 800 1065 2625 3495 2014-04-30
No Photo Available
Sidalcea celata Redding checkerbloom Malvaceae perennial herb Apr-Aug None None G2G3 S2S3 3 Cismontane woodland Serpentine (sometimes) 135 1525 445 5005 Yes 2012-07-11 Photo of Sidalcea celata
©2014 Lawrence Janeway
Sidalcea elegans Del Norte checkerbloom Malvaceae perennial rhizomatous herb May-Jul None None G4? S2? 3.3 Chaparral, Lower montane coniferous forest Serpentine 215 1365 705 4480 2012-07-23
No Photo Available
Tiquilia canescens var. pulchella Chocolate Mountains tiquilia Ehretiaceae perennial shrub Feb-May None None G5T3T4 S3 3.2 Sonoran desert scrub Slopes (sometimes), Washes (sometimes) 250 700 820 2295 2012-09-06
No Photo Available
Graphis saxorum Baja rock lichen Graphidaceae crustose lichen (saxicolous) None None G1G2 S1 3 Coastal scrub (?) 30 80 100 260 2014-03-01
No Photo Available
Mobergia calculiformis light gray lichen Physciaceae crustose lichen (saxicolous) None None G3 S1 3 Coastal scrub (?) 10 10 35 35 2014-03-01
No Photo Available
Texosporium sancti-jacobi woven-spored lichen Caliciaceae crustose lichen (terricolous) None None G3 S2 3 Chaparral (openings) 60 660 195 2165 2014-03-01 Photo of Texosporium sancti-jacobi
©2021 Scot Loring
Solidago lepida var. salebrosa Rocky Mountains Canada goldenrod Asteraceae perennial rhizomatous herb Jul-Sep None None G5T5 S1 3.2 Marshes and swamps (lake margins, streambanks), Meadows and seeps (mesic) 1080 1390 3545 4560 2014-09-29
No Photo Available
Erythranthe angulosa sweet-stem monkeyflower Phrymaceae annual herb Jun-Jul None None G1Q S1 3 Great Basin scrub Granitic, Rocky 2920 2920 9580 9580 2022-06-21
No Photo Available
Erythranthe bergeri Berger's monkeyflower Phrymaceae annual herb Apr-May None None G1Q S1 3 Great Basin scrub Granitic, Rocky, Vernally Mesic 1235 1235 4050 4050 2022-06-21
No Photo Available

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 19 April 2024].