CNPS

CNPS Rare Plant Inventory


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110 matches found. Click on scientific name for details

Search Criteria: Scientific Name starts with T

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
Taraxacum ceratophorum horned dandelion Asteraceae annual herb Jun-Jul(Aug) None None G5 S1 2B.1 Alpine boulder and rock field, Meadows and seeps, Valley and foothill grassland (mesic) Carbonate (sometimes) 2895 3610 9500 11845 2004-01-01
No Photo Available
Tetracoccus hallii Hall's tetracoccus Picrodendraceae perennial deciduous shrub Jan-May None None G4 S4 4.3 SB_CalBG/RSABG Mojavean desert scrub, Sonoran desert scrub 30 1200 100 3935 2001-01-01
No Photo Available
Tetradymia tetrameres dune horsebrush Asteraceae perennial shrub (Jul)Aug None None G4 S2 2B.2 SB_CalBG/RSABG Great Basin scrub (sandy) 1200 2135 3935 7005 2001-01-01
No Photo Available
Teucrium glandulosum desert germander Lamiaceae perennial stoloniferous herb Apr-May None None G4 S2 2B.3 Sonoran desert scrub (rocky) 400 790 1310 2590 2001-01-01
No Photo Available
Thalictrum alpinum arctic meadow-rue Ranunculaceae perennial stoloniferous herb Jul-Aug None None G5 S3 4.3 Alpine boulder and rock field, Marshes and swamps (edges), Meadows and seeps Mesic 2805 3700 9205 12140 2001-01-01
No Photo Available
Thelypodium howellii ssp. howellii Howell's thelypodium Brassicaceae perennial herb May-Jul None None G1T1 S1 1B.2 BLM_S; SB_UCSC; USFS_S Grazing, Other Great Basin scrub, Meadows and seeps (alkaline) 1200 1830 3935 6005 2001-01-01 Photo of Thelypodium howellii ssp. howellii
©1990 Dean Wm. Taylor
Thelypodium brachycarpum short-podded thelypodium Brassicaceae perennial herb May-Aug None None G3 S3 4.2 Chaparral, Lower montane coniferous forest, Meadows and seeps Adobe, Alkaline, Serpentine 670 2560 2200 8400 1974-01-01 Photo of Thelypodium brachycarpum
© 2016 Dana York
Thelypodium stenopetalum slender-petaled thelypodium Brassicaceae perennial herb May-Sep FE CE G1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Meadows and seeps (mesic, alkaline) 1600 2500 5250 8205 Yes 1974-01-01
No Photo Available
Thermopsis macrophylla Santa Ynez false lupine Fabaceae perennial rhizomatous herb Apr-Jun None CR G1 S1 1B.3 SB_CalBG/RSABG; SB_SBBG; USFS_S Dam/Inundation, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Chaparral (disturbed areas, granitic, sandy) 425 1400 1395 4595 Yes 1974-01-01
No Photo Available
Thermopsis californica var. argentata CBR 1980-01-01
No Photo Available
Thermopsis californica var. semota velvety false lupine Fabaceae perennial rhizomatous herb Mar-Jun None None G4T2 S2 1B.2 SB_CRES; USFS_S Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Cismontane woodland, Lower montane coniferous forest, Meadows and seeps, Valley and foothill grassland 1000 1870 3280 6135 Yes 1974-01-01
No Photo Available
Transberingia bursifolia ssp. virgata virgate halimolobos Brassicaceae perennial herb (Jun)Jul None None G4T4 S2 2B.3 Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Other Meadows and seeps, Pinyon and juniper woodland 2000 3000 6560 9845 1974-01-01
No Photo Available
Tonestus eximius Tahoe tonestus Asteraceae perennial rhizomatous herb Jul-Aug None None G3 S3 4.3 Subalpine coniferous forest (granitic) 2500 3300 8205 10825 1974-01-01
No Photo Available
Tonestus lyallii Lyall's tonestus Asteraceae perennial rhizomatous herb Jul-Aug None None G5 S1 2B.3 Alpine boulder and rock field 2500 2700 8205 8860 1974-01-01 Photo of Tonestus lyallii
©2020 John Doyen
Trifolium gymnocarpon Plummer's clover Fabaceae perennial herb May-Jun None None G5T4 S2 2B.3 Grazing, Other Great Basin scrub, Pinyon and juniper woodland 1500 1920 4920 6300 2001-01-01
No Photo Available
Trifolium jokerstii Butte County golden clover Fabaceae annual herb Mar-May None None G2 S2 1B.2 BLM_S; SB_UCSC; SB_USDA Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV) Valley and foothill grassland (mesic), Vernal pools 50 480 165 1575 Yes 2001-01-01 Photo of Trifolium jokerstii
© 2008 George W Hartwell
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
Tripterocalyx crux-maltae Kellogg's sand-verbena Nyctaginaceae perennial herb May-Jul None None G4? S1 2B.2 SB_CalBG/RSABG Great Basin scrub (partially or fully stabilized sand dunes) 1200 1500 3935 4920 2001-01-01
No Photo Available
Tripterocalyx micranthus small-flowered sand-verbena Nyctaginaceae perennial herb Apr-May None None G5 S1 2B.3 Grazing Desert dunes, Mojavean desert scrub (sandy) 550 855 1805 2805 2001-01-01
No Photo Available
Triteleia grandiflora large-flowered triteleia Themidaceae perennial bulbiferous herb Apr-Jun None None G4G5 S1 2B.1 Grazing, Other Great Basin scrub, Pinyon and juniper woodland 700 1500 2295 4920 2001-01-01 Photo of Triteleia grandiflora
©2018 John Doyen
Triteleia lugens dark-mouthed triteleia Themidaceae perennial bulbiferous herb Apr-Jun None None G4? S4? 4.3 Broadleafed upland forest, Chaparral, Coastal scrub, Lower montane coniferous forest 100 1000 330 3280 Yes 1974-01-01
No Photo Available
Tropidocarpum californicum Kings gold Brassicaceae annual herb Feb-Mar None None G1 S1 1B.1 BLM_S Agriculture, Development, Disking, Grazing Chenopod scrub 65 180 215 590 Yes 2001-01-01 Photo of Tropidocarpum californicum
© 2017 Robert E. Preston, Ph.D.
Triphysaria floribunda San Francisco owl's-clover Orobanchaceae annual herb Apr-Jun None None G2? S2? 1B.2 Development, Erosion/runoff, Foot traffic/trampling, Grazing, Insufficient population/stand size, Mining, Non-native plant impacts, Other, Road/trail construction/maint. Coastal prairie, Coastal scrub, Valley and foothill grassland Serpentine (usually) 10 160 35 525 Yes 1974-01-01
No Photo Available
Triteleia clementina San Clemente Island triteleia Themidaceae perennial bulbiferous herb Mar-Apr None None G2 S2 1B.2 SB_CalBG/RSABG; SB_CRES Valley and foothill grassland (rocky) 100 445 330 1460 Yes 1974-01-01
No Photo Available
Triteleia crocea var. crocea yellow triteleia Themidaceae perennial bulbiferous herb May-Jun None None G4T4 S3S4 4.3 Lower montane coniferous forest (granitic, serpentinite) 1200 2000 3935 6560 1974-01-01 Photo of Triteleia crocea var. crocea
©2021 Steve Matson
Triteleia crocea var. modesta Trinity Mountains triteleia Themidaceae perennial bulbiferous herb May-Jul None None G4T3 S3 4.3 SB_UCSC Lower montane coniferous forest (serpentinite) 1200 2000 3935 6560 Yes 1980-01-01 Photo of Triteleia crocea var. modesta
© 2013 Julie Kierstead Nelson
Triteleia ixioides ssp. cookii Cook's triteleia Themidaceae perennial bulbiferous herb May-Jun None None G5T2T3 S2S3 1B.3 BLM_S; SB_UCBG; USFS_S Feral pigs, Foot traffic/trampling, Improper burning regime, Non-native plant impacts, Other, Road/trail construction/maint. Cismontane woodland, Closed-cone coniferous forest Seeps, Serpentine 150 700 490 2295 Yes 1974-01-01
No Photo Available
Tropidocarpum capparideum caper-fruited tropidocarpum Brassicaceae annual herb Mar-Apr None None G1 S1 1B.1 SB_CalBG/RSABG; USFS_S Agriculture, Altered flood/tidal/hydrologic regime, Development, Grazing, Improper burning regime, Military operations, Non-native plant impacts, ORV activity Valley and foothill grassland (alkaline hills) 1 455 5 1495 Yes 1974-01-01
No Photo Available
Tuctoria greenei Greene's tuctoria Poaceae annual herb May-Jul(Sep) FE CR G1 S1 1B.1 Agriculture, Altered flood/tidal/hydrologic regime, Biocides, Development, Disking, Foot traffic/trampling, Grazing, Mining, Non-native plant impacts, Other, Road/trail construction/maint., Surface water diversion Vernal pools 30 1070 100 3510 Yes 1974-01-01 Photo of Tuctoria greenei
©2008 F. Gauna
Tuctoria mucronata Crampton's tuctoria or Solano grass Poaceae annual herb Apr-Aug FE CE G1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Grazing, Insufficient population/stand size, Non-native plant impacts, Other, Over-collecting/poaching, Recreational use (non-ORV) Valley and foothill grassland (mesic), Vernal pools 5 10 15 35 Yes 1974-01-01
No Photo Available
Thelypodium integrifolium ssp. complanatum foxtail thelypodium Brassicaceae annual/perennial herb Jun-Oct None None G5T4T5 S2 2B.2 Grazing, Road/trail construction/maint. Great Basin scrub, Meadows and seeps Alkaline (sometimes), Mesic 1100 2500 3610 8205 2001-01-01
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
Tonestus peirsonii Peirson's tonestus Asteraceae perennial herb Jul-Aug None None G3 S3 4.3 Alpine boulder and rock field, Subalpine coniferous forest (rocky) Granitic 2900 3700 9515 12140 Yes 1974-01-01
No Photo Available
Townsendia condensata cushion townsendia Asteraceae perennial herb Jul-Aug None None G4 S3 2B.3 SB_CalBG/RSABG Erosion/runoff, Foot traffic/trampling, Grazing, Road/trail construction/maint. Alpine boulder and rock field, Subalpine coniferous forest (gravelly) 2865 3675 9400 12060 2001-01-01
No Photo Available
Townsendia leptotes slender townsendia Asteraceae perennial herb Jun-Aug None None G4 S2 2B.3 Erosion/runoff, Foot traffic/trampling Alpine boulder and rock field 3275 3810 10745 12500 2001-01-01
No Photo Available
Tragia ramosa desert tragia Euphorbiaceae perennial herb Apr-May None None G5 S4 4.3 SB_CalBG/RSABG Chenopod scrub, Pinyon and juniper woodland Rocky 900 1860 2955 6105 2001-01-01
No Photo Available
Trifolium andersonii ssp. andersonii Anderson's clover Fabaceae perennial herb Jun-Jul None None G5T5 S4 4.3 SB_UCSC; SB_USDA Great Basin scrub, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland 900 2440 2955 8005 2001-01-01
No Photo Available
Trifolium hydrophilum saline clover Fabaceae annual herb Apr-Jun None None G2 S2 1B.2 Agriculture, Biocides, Development, Disking, Grazing, Improper burning regime, Landfill, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Vandalism/dumping/litter Marshes and swamps, Valley and foothill grassland (mesic, alkaline), Vernal pools 0 300 0 985 Yes 2001-01-01 Photo of Trifolium hydrophilum
© 2005 Dean Wm Taylor
Thermopsis gracilis CBR 1994-01-01
No Photo Available
Thermopsis robusta robust false lupine Fabaceae perennial rhizomatous herb May-Jul None None G2 S2 1B.2 SB_UCSC; USFS_S Biocides, Grazing, Improper burning regime, Insufficient population/stand size, Logging, Mining, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing Broadleafed upland forest, North Coast coniferous forest 150 1500 490 4920 Yes 1994-01-01 Photo of Thermopsis robusta
©2018 Hayley Ross
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
Trifolium buckwestiorum Santa Cruz clover Fabaceae annual herb Apr-Oct None None G2 S2 1B.1 BLM_S; SB_SBBG; SB_UCSC; SB_USDA Development, Disease, Erosion/runoff, Feral pigs, Foot traffic/trampling, Logging, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Broadleafed upland forest, Cismontane woodland, Coastal prairie Gravelly 35 610 115 2000 Yes 1994-01-01
No Photo Available
Triteleia hendersonii Henderson's triteleia Themidaceae perennial bulbiferous herb May-Jul None None G4 S1 2B.2 Cismontane woodland 760 1200 2495 3935 1994-01-01 Photo of Triteleia hendersonii
©2016 Keir Morse
Trichophorum pumilum little bulrush Cyperaceae perennial rhizomatous herb Aug None None G5 S3 2B.2 SB_CalBG/RSABG Erosion/runoff, Grazing Bogs and fens, Marshes and swamps, Riparian scrub Carbonate, Streambanks 2860 3250 9385 10665 1994-01-01
No Photo Available
Taraxacum californicum California dandelion Asteraceae perennial herb May-Aug FE None G1 S1 1B.1 SB_CalBG/RSABG Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Hybridization, Insufficient population/stand size, Mining, Non-native animal impacts, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter, Wood cutting or brush clearing Meadows and seeps (mesic) 1620 2800 5315 9185 Yes 1974-01-01
No Photo Available
Tauschia glauca glaucous tauschia Apiaceae perennial herb Apr-Jun None None G4 S4 4.3 Lower montane coniferous forest (gravelly, serpentinite) 80 1700 260 5580 1974-01-01 Photo of Tauschia glauca
©2022 Sierra Pacific Industries
Tauschia howellii Howell's tauschia Apiaceae perennial herb Jun-Aug None None G2G3 S2S3 1B.3 SB_SBBG; USFS_S Foot traffic/trampling, Logging, ORV activity, Other, Recreational use (non-ORV) Subalpine coniferous forest, Upper montane coniferous forest Granitic, Gravelly 1705 2500 5595 8205 1974-01-01 Photo of Tauschia howellii
©2011 Dean Wm. Taylor
Tetracoccus dioicus Parry's tetracoccus Picrodendraceae perennial deciduous shrub Apr-May None None G2G3 S2 1B.2 BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S Agriculture, Development, Improper burning regime, Mining, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint. Chaparral, Coastal scrub 165 1000 540 3280 1974-01-01
No Photo Available
Tetracoccus ilicifolius holly-leaved tetracoccus Picrodendraceae perennial deciduous shrub May-Jun None None G2 S2 1B.3 SB_CalBG/RSABG Mojavean desert scrub (carbonate, rocky) 600 1830 1970 6005 Yes 1974-01-01
No Photo Available
Tetradymia argyraea striped horsebrush Asteraceae perennial deciduous shrub (May)Jun-Sep None None G4? S4 4.3 SB_CalBG/RSABG Pinyon and juniper woodland (rocky) 1400 2230 4595 7315 1974-01-01
No Photo Available
Thysanocarpus conchuliferus Santa Cruz Island fringepod Brassicaceae annual herb Mar-Apr(May) FE None G2? S2 1B.2 SB_SBBG Chaparral, Cismontane woodland Rocky 45 655 150 2150 Yes 1974-01-01
No Photo Available
Tracyina rostrata beaked tracyina Asteraceae annual herb May-Jun None None G2 S2 1B.2 USFS_S Development, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Road/trail construction/maint. Chaparral, Cismontane woodland, Valley and foothill grassland 90 1270 295 4165 Yes 1974-01-01 Photo of Tracyina rostrata
©2018 John Game
Trichocoronis wrightii var. wrightii Wright's trichocoronis Asteraceae annual herb May-Sep None None G4T3 S1 2B.1 Agriculture, Grazing Marshes and swamps, Meadows and seeps, Riparian forest, Vernal pools Alkaline 5 435 15 1425 1988-01-01
No Photo Available
Trichostema austromontanum ssp. compactum Hidden Lake bluecurls Lamiaceae annual herb Jul-Sep FD None G3G4T1 S1 1B.1 SB_CalBG/RSABG Foot traffic/trampling, Other, Recreational use (non-ORV) Upper montane coniferous forest (seasonally submerged lake margins) 2400 2680 7875 8795 Yes 1974-01-01 Photo of Trichostema austromontanum ssp. compactum
© 2013 Keir Morse
Trichostema micranthum small-flowered bluecurls Lamiaceae annual herb Jun-Sep None None G4 S3 4.3 Lower montane coniferous forest, Meadows and seeps Mesic 1525 2300 5005 7545 1974-01-01
No Photo Available
Trichostema ovatum San Joaquin bluecurls Lamiaceae annual herb (Apr-Jun)Jul-Oct None None G3 S3 4.2 Chenopod scrub, Valley and foothill grassland 65 320 215 1050 Yes 1974-01-01
No Photo Available
Trichostema rubisepalum Hernandez bluecurls Lamiaceae annual herb Jun-Aug None None G4 S4 4.3 SB_CalBG/RSABG Broadleafed upland forest, Chaparral, Cismontane woodland, Lower montane coniferous forest, Vernal pools Gravelly, Serpentine (sometimes), Volcanic (sometimes) 300 1435 985 4710 Yes 1974-01-01
No Photo Available
Trifolium amoenum two-fork clover Fabaceae annual herb Apr-Jun FE None G1 S1 1B.1 SB_CalBG/RSABG; SB_UCBG; SB_USDA Development, Erosion/runoff Coastal bluff scrub, Valley and foothill grassland (sometimes serpentinite) 5 415 15 1360 Yes 1974-01-01
No Photo Available
Trifolium bolanderi Bolander's clover Fabaceae perennial herb Jun-Aug None None G3 S3 1B.2 SB_SBBG; SB_USDA; USFS_S Biocides, Development, Foot traffic/trampling, Grazing, Logging, ORV activity, Other, Road/trail construction/maint. Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic 2039 2600 6690 8530 Yes 1974-01-01
No Photo Available
Trifolium dedeckerae Dedecker's clover Fabaceae perennial herb May-Jul None None G2 S2 1B.3 BLM_S; SB_CalBG/RSABG; USFS_S Grazing, Non-native plant impacts, Road/trail construction/maint. Lower montane coniferous forest, Pinyon and juniper woodland, Subalpine coniferous forest, Upper montane coniferous forest Granitic, Rocky 2100 3500 6890 11485 Yes 1974-01-01
No Photo Available
Trifolium howellii Howell's clover Fabaceae perennial herb Jun-Aug None None G4 S4 4.3 Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Mesic 800 1800 2625 5905 1974-01-01 Photo of Trifolium howellii
© 2021 Scot Loring
Trifolium lemmonii Lemmon's clover Fabaceae perennial herb May-Jul None None G3 S3 4.2 SB_UCSC; SB_USDA Great Basin scrub, Lower montane coniferous forest 1500 1830 4920 6005 1974-01-01
No Photo Available
Trifolium palmeri southern island clover Fabaceae annual herb Mar-May None None G4 S4 4.2 SB_CalBG/RSABG Coastal bluff scrub, Valley and foothill grassland 10 180 35 590 1974-01-01
No Photo Available
Trifolium polyodon Pacific Grove clover Fabaceae annual herb Apr-Jun(Jul) None CR G1 S1 1B.1 BLM_S; SB_USDA Altered flood/tidal/hydrologic regime, Biocides, Development, Foot traffic/trampling, Grazing, Non-native plant impacts, Other, Recreational use (non-ORV), Road/trail construction/maint. Closed-cone coniferous forest, Coastal prairie, Meadows and seeps, Valley and foothill grassland Granitic (sometimes), Mesic 5 425 15 1395 Yes 1974-01-01
No Photo Available
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
Trillium ovatum ssp. oettingeri Salmon Mountains wakerobin Melanthiaceae perennial herb Feb-Jul None None G5T4 S4 4.2 Lower montane coniferous forest, Riparian scrub, Upper montane coniferous forest Mesic 855 2024 2805 6640 Yes 1980-01-01 Photo of Trillium ovatum ssp. oettingeri
©2017 Len Lindstrand III
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
Tortula californica California screw moss Pottiaceae moss None None G2G3 S2? 1B.2 BLM_S Chenopod scrub, Valley and foothill grassland Sandy 10 1460 35 4790 Yes 2001-01-01
No Photo Available
Triquetrella californica coastal triquetrella Pottiaceae moss None None G2 S2 1B.2 USFS_S Coastal bluff scrub, Coastal scrub 10 100 35 330 2001-01-01
No Photo Available
Tortella alpicola alpine crisp-moss Pottiaceae moss None None G5? S1 2B.3 Cismontane woodland (rocky, volcanic) 1400 1400 4595 4595 2001-01-01
No Photo Available
Trichodon cylindricus cylindrical trichodon Ditrichaceae moss None None G4G5 S2 2B.2 Logging, Other, Road/trail construction/maint. Broadleafed upland forest, Meadows and seeps, Upper montane coniferous forest Roadsides, Sandy 50 2002 165 6570 2001-01-01
No Photo Available
Tanacetum douglasii CBR 2006-01-10
No Photo Available
Tetradymia stenolepis CBR 2006-01-10
No Photo Available
Thelypodium flexuosum CBR 2006-01-10
No Photo Available
Trichostema austromontanum ssp. austromontanum CBR 2006-01-10
No Photo Available
Trichostema lanatum CBR 2006-01-10
No Photo Available
Trifolium monoense CBR 2006-01-10
No Photo Available
Triglochin striata CBR 2006-01-10
No Photo Available
Triteleia dudleyi CBR 2006-01-10
No Photo Available
Triteleia gracilis CBR 2006-01-10
No Photo Available
Trifolium andersonii ssp. beatleyae CBR 2006-01-10
No Photo Available
Tiarella trifoliata var. unifoliata CBR 2006-01-10
No Photo Available
Trillium rivale CBR 2006-01-10
No Photo Available
Trifolium grayi CBR 2006-01-10
No Photo Available
Trillium kurabayashii CBR 2006-01-10
No Photo Available
Taxus brevifolia CBR 2006-01-10
No Photo Available
Tanacetum camphoratum CBR 2006-01-10
No Photo Available
Triteleia versicolor CBR 2006-01-10
No Photo Available
Tetradymia canescens CBR 2006-01-10
No Photo Available
Tetradymia comosa CBR 2006-01-10
No Photo Available
Tetradymia spinosa CBR 2006-01-10
No Photo Available
Thalictrum occidentale CBR 2006-01-10
No Photo Available
Triphysaria versicolor ssp. faucibarbara CBR 2006-01-10
No Photo Available
Trichophorum clementis CBR 2006-01-10
No Photo Available
Townsendia parryi CBR 2006-01-10
No Photo Available
Tayloria lingulata CBR 2006-01-10
No Photo Available
Trichostema ruygtii Napa bluecurls Lamiaceae annual herb Jun-Oct None None G1G2 S2 1B.2 SB_CalBG/RSABG Agriculture, Development Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland, Vernal pools 30 680 100 2230 Yes 2007-01-03
No Photo Available
Trifolium siskiyouense Siskiyou clover Fabaceae perennial herb Jun-Jul None None GH SH 1B.1 Meadows and seeps (mesic) Streambanks (sometimes) 880 1500 2885 4920 2007-02-02
No Photo Available
Teucrium cubense ssp. depressum dwarf germander Lamiaceae annual herb Mar-May(Sep-Nov) None None G4G5T3T4 S1 2B.2 Foot traffic/trampling, ORV activity Desert dunes, Playas (margins), Sonoran desert scrub 45 400 150 1310 2008-09-02
No Photo Available
Thysanocarpus rigidus rigid fringepod Brassicaceae annual herb Feb-May None None G2 S2 1B.2 SB_CalBG/RSABG; USFS_S Development, Recreational use (non-ORV), Vandalism/dumping/litter Pinyon and juniper woodland Dry, Rocky, Slopes 600 2200 1970 7220 2011-03-17
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
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
Thamnolia vermicularis whiteworm lichen Icmadophilaceae fruticose lichen (terricolous) None None G5 S1 2B.1 Agriculture, Development, Foot traffic/trampling, Road/trail construction/maint. Chaparral, Valley and foothill grassland Rocky, Sandstone 90 90 295 295 2014-03-01 Photo of Thamnolia vermicularis
© 2021 Scot Loring
Triteleia piutensis Piute Mountains triteleia Themidaceae perennial bulbiferous herb May-Jun None None G1 S1 1B.1 BLM_S; SB_CalBG/RSABG Development Pinyon and juniper woodland Clay, Openings, Volcanic 1585 1655 5200 5430 Yes 2014-07-24
No Photo Available
Toxicoscordion fremontii var. minor CBR 2016-07-14
No Photo Available
Thelesperma megapotamicum CBR 2016-11-10
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
Tidestromia eliassoniana Eliasson's woolly tidestromia Amaranthaceae annual herb Jul-Oct None None G5 S2 2B.2 Grazing Mojavean desert scrub Clay, Flats, Gravelly, Rocky, Volcanic 655 2105 2150 6905 2018-01-30
No Photo Available
Trifolium minutissimum CBR 2024-02-29
No Photo Available
Trifolium mucronatum ssp. lacerum CBR 2024-02-29
No Photo Available

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 26 April 2024].