Welcome to the Inventory of Rare, Threatened, and Endangered Plants of California

The CNPS Inventory of Rare and Endangered Plants has served as a resource for information about California's rare plants for over 35 years. The Inventory is a widely-recognized resource that promotes scientific research, conservation planning, and the enforcement of environmental laws. To search for information regarding California's rare and endangered plants, please click on the "Simple Search" or "Advanced Search" buttons below, or enter a word or phrase directly into the search bar to begin.

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Carrizo Plain

Additions / Changes / Deletions

Carex nardina added to 2B.2 on 2013-10-29
Erythranthe taylori added to 1B.1 on 2013-10-29
Heteranthera dubia added to 2B.2 on 2013-10-29
Tiquilia canescens var. pulchella added to 3.2 on 2013-10-11
Lewisia kelloggii ssp. hutchisonii changed from 3.3 to 3.2 on 2013-10-03
Lewisia kelloggii ssp. kelloggii added to 3.2 on 2013-10-03
Erythranthe sierrae added to 4.2 on 2013-10-03
Eremogone congesta var. subcongesta added to CBR on 2013-10-03
Eremogone congesta var. simulans added to CBR on 2013-10-03
Eremogone congesta var. crassula added to CBR on 2013-10-03
Brodiaea santarosae changed from 3 to 1B.2 on 2013-09-17
Linanthus bernardinus added to 1B.2 on 2013-09-16
Arabis repanda var. greenei changed from 4.3 to 3.3 on 2013-09-03
Panicum hirticaule ssp. hirticaule added to 2B.1 on 2013-08-28
Hosackia yollabolliensis changed from 4.3 to 1B.2 on 2013-08-21
Linanthus bellus changed from 2B.3 to 2B.1 on 2013-08-08
Erythranthe rhodopetra added to 1B.1 on 2013-07-29
Erythranthe hardhamiae added to 1B.1 on 2013-07-02
Erythranthe carsonensis added to 1B.1 on 2013-07-01
Erythranthe calcicola added to 1B.3 on 2013-07-01
Lepidium virginicum var. robinsonii changed from 1B.2 to 4.3 on 2013-07-01
Carex duriuscula changed from 2.3 to 2B.3 on 2013-06-12
Woodsia plummerae changed from 2.3 to 2B.3 on 2013-06-12
Wolffia brasiliensis changed from 2.3 to 2B.3 on 2013-06-12
Wislizenia refracta ssp. refracta changed from 2.2 to 2B.2 on 2013-06-12
Wislizenia refracta ssp. palmeri changed from 2.2 to 2B.2 on 2013-06-12
Viola purpurea ssp. aurea changed from 2.2 to 2B.2 on 2013-06-12
Viola palustris changed from 2.2 to 2B.2 on 2013-06-12
Viola langsdorffii changed from 2.1 to 2B.1 on 2013-06-12
Viola howellii changed from 2.2 to 2B.2 on 2013-06-12
Viguiera purisimae changed from 2.3 to 2B.3 on 2013-06-12
Viburnum ellipticum changed from 2.3 to 2B.3 on 2013-06-12
Viburnum edule changed from 2.1 to 2B.1 on 2013-06-12
Valeriana occidentalis changed from 2.3 to 2B.3 on 2013-06-12
Vaccinium scoparium changed from 2.2 to 2B.2 on 2013-06-12
Utricularia ochroleuca changed from 2.2 to 2B.2 on 2013-06-12
Utricularia intermedia changed from 2.2 to 2B.2 on 2013-06-12
Triteleia hendersonii changed from 2.2 to 2B.2 on 2013-06-12
Triteleia grandiflora changed from 2.1 to 2B.1 on 2013-06-12
Tripterocalyx micranthus changed from 2.3 to 2B.3 on 2013-06-12
Tripterocalyx crux-maltae changed from 2.2 to 2B.2 on 2013-06-12
Triglochin palustris changed from 2.3 to 2B.3 on 2013-06-12
Trifolium gymnocarpon ssp. plummerae changed from 2.3 to 2B.3 on 2013-06-12
Trientalis europaea changed from 2.2 to 2B.2 on 2013-06-12
Trichophorum pumilum changed from 2.2 to 2B.2 on 2013-06-12
Trichodon cylindricus changed from 2.2 to 2B.2 on 2013-06-12
Trichocoronis wrightii var. wrightii changed from 2.1 to 2B.1 on 2013-06-12
Transberingia bursifolia ssp. virgata changed from 2.3 to 2B.3 on 2013-06-12
Townsendia leptotes changed from 2.3 to 2B.3 on 2013-06-12
Townsendia condensata changed from 2.3 to 2B.3 on 2013-06-12
Tortella alpicola changed from 2.3 to 2B.3 on 2013-06-12
Tonestus lyallii changed from 2.3 to 2B.3 on 2013-06-12
Thelypteris puberula var. sonorensis changed from 2.2 to 2B.2 on 2013-06-12
Thelypodium milleflorum changed from 2.2 to 2B.2 on 2013-06-12
Thelypodium integrifolium ssp. complanatum changed from 2.2 to 2B.2 on 2013-06-12
Teucrium glandulosum changed from 2.3 to 2B.3 on 2013-06-12
Teucrium cubense ssp. depressum changed from 2.2 to 2B.2 on 2013-06-12
Tetradymia tetrameres changed from 2.2 to 2B.2 on 2013-06-12
Taraxacum ceratophorum changed from 2.1 to 2B.1 on 2013-06-12
Synthyris missurica ssp. missurica changed from 2.3 to 2B.3 on 2013-06-12
Suaeda occidentalis changed from 2.3 to 2B.3 on 2013-06-12
Stuckenia filiformis changed from 2.2 to 2B.2 on 2013-06-12
Stipa exigua changed from 2.3 to 2B.3 on 2013-06-12
Stipa divaricata changed from 2.3 to 2B.3 on 2013-06-12
Stipa arida changed from 2.3 to 2B.3 on 2013-06-12
Stenotus lanuginosus var. lanuginosus changed from 2.2 to 2B.2 on 2013-06-12
Stemodia durantifolia changed from 2.1 to 2B.1 on 2013-06-12
Stellaria longifolia changed from 2.2 to 2B.2 on 2013-06-12
Stanleya viridiflora changed from 2.3 to 2B.3 on 2013-06-12
Stachys pilosa changed from 2.3 to 2B.3 on 2013-06-12
Sphenopholis obtusata changed from 2.2 to 2B.2 on 2013-06-12
Sphagnum strictum changed from 2.3 to 2B.3 on 2013-06-12
Sphaeromeria potentilloides var. nitrophila changed from 2.2 to 2B.2 on 2013-06-12
Sphaeralcea munroana changed from 2.2 to 2B.2 on 2013-06-12
Sphaeralcea grossulariifolia changed from 2.3 to 2B.3 on 2013-06-12
Spermolepis echinata changed from 2.3 to 2B.3 on 2013-06-12
Spergularia canadensis var. occidentalis changed from 2.1 to 2B.1 on 2013-06-12
Solidago gigantea changed from 2.2 to 2B.2 on 2013-06-12
Sisyrinchium longipes changed from 2.2 to 2B.2 on 2013-06-12
Silene suksdorfii changed from 2.3 to 2B.3 on 2013-06-12
Silene oregana changed from 2.2 to 2B.2 on 2013-06-12
Sidalcea neomexicana changed from 2.2 to 2B.2 on 2013-06-12
Sidalcea multifida changed from 2.3 to 2B.3 on 2013-06-12
Shepherdia canadensis changed from 2.1 to 2B.1 on 2013-06-12
Senna covesii changed from 2.2 to 2B.2 on 2013-06-12
Senecio aphanactis changed from 2.2 to 2B.2 on 2013-06-12
Selaginella eremophila changed from 2.2 to 2B.2 on 2013-06-12
Sedum divergens changed from 2.3 to 2B.3 on 2013-06-12
Scutellaria lateriflora changed from 2.2 to 2B.2 on 2013-06-12
Scutellaria galericulata changed from 2.2 to 2B.2 on 2013-06-12
Scopelophila cataractae changed from 2.2 to 2B.2 on 2013-06-12
Scleropogon brevifolius changed from 2.3 to 2B.3 on 2013-06-12
Sclerocactus johnsonii changed from 2.2 to 2B.2 on 2013-06-12
Scirpus pendulus changed from 2.2 to 2B.2 on 2013-06-12
Schoenus nigricans changed from 2.2 to 2B.2 on 2013-06-12
Schoenoplectus subterminalis changed from 2.3 to 2B.3 on 2013-06-12
Schoenoplectus heterochaetus changed from 2.3 to 2B.3 on 2013-06-12
Schkuhria multiflora var. multiflora changed from 2.3 to 2B.3 on 2013-06-12
Scheuchzeria palustris changed from 2.1 to 2B.1 on 2013-06-12
Saxifraga rufidula changed from 2.3 to 2B.3 on 2013-06-12
Saxifraga cespitosa changed from 2.3 to 2B.3 on 2013-06-12
Saussurea americana changed from 2.2 to 2B.2 on 2013-06-12
Sarcobatus baileyi changed from 2.3 to 2B.3 on 2013-06-12
Sanvitalia abertii changed from 2.2 to 2B.2 on 2013-06-12
Sanguisorba officinalis changed from 2.2 to 2B.2 on 2013-06-12
Salvia munzii changed from 2.2 to 2B.2 on 2013-06-12
Salix nivalis changed from 2.3 to 2B.3 on 2013-06-12
Salix brachycarpa var. brachycarpa changed from 2.3 to 2B.3 on 2013-06-12
Salix bebbiana changed from 2.3 to 2B.3 on 2013-06-12
Rumex venosus changed from 2.3 to 2B.3 on 2013-06-12
Rubus nivalis changed from 2.3 to 2B.3 on 2013-06-12
Rosa minutifolia changed from 2.1 to 2B.1 on 2013-06-12
Romanzoffia tracyi changed from 2.3 to 2B.3 on 2013-06-12
Robinia neomexicana changed from 2.3 to 2B.3 on 2013-06-12
Riella americana changed from 2.2 to 2B.2 on 2013-06-12
Ribes hudsonianum var. petiolare changed from 2.3 to 2B.3 on 2013-06-12
Rhynchospora globularis changed from 2.1 to 2B.1 on 2013-06-12
Rhynchospora capitellata changed from 2.2 to 2B.2 on 2013-06-12
Rhynchospora alba changed from 2.2 to 2B.2 on 2013-06-12
Rhus trilobata var. simplicifolia changed from 2.3 to 2B.3 on 2013-06-12
Rhamnus alnifolia changed from 2.2 to 2B.2 on 2013-06-12
Ranunculus macounii changed from 2.2 to 2B.2 on 2013-06-12
Ranunculus hydrocharoides changed from 2.1 to 2B.1 on 2013-06-12
Quercus cedrosensis changed from 2.2 to 2B.2 on 2013-06-12
Pyrrocoma racemosa var. congesta changed from 2.3 to 2B.3 on 2013-06-12
Puccinellia pumila changed from 2.2 to 2B.2 on 2013-06-12
Psorothamnus fremontii var. attenuatus changed from 2.3 to 2B.3 on 2013-06-12
Pseudorontium cyathiferum changed from 2.3 to 2B.3 on 2013-06-12
Pseudognaphalium leucocephalum changed from 2.2 to 2B.2 on 2013-06-12
Potentilla rimicola changed from 2.3 to 2B.3 on 2013-06-12
Potentilla pulcherrima changed from 2.2 to 2B.2 on 2013-06-12
Potentilla newberryi changed from 2.3 to 2B.3 on 2013-06-12
Potentilla concinna changed from 2.3 to 2B.3 on 2013-06-12
Potamogeton zosteriformis changed from 2.2 to 2B.2 on 2013-06-12
Potamogeton robbinsii changed from 2.3 to 2B.3 on 2013-06-12
Potamogeton praelongus changed from 2.3 to 2B.3 on 2013-06-12
Potamogeton foliosus ssp. fibrillosus changed from 2.3 to 2B.3 on 2013-06-12
Potamogeton epihydrus changed from 2.2 to 2B.2 on 2013-06-12
Populus angustifolia changed from 2.2 to 2B.2 on 2013-06-12
Polygala subspinosa changed from 2.2 to 2B.2 on 2013-06-12
Polygala intermontana changed from 2.3 to 2B.3 on 2013-06-12
Polygala heterorhyncha changed from 2.3 to 2B.3 on 2013-06-12
Polygala acanthoclada changed from 2.3 to 2B.3 on 2013-06-12
Polemonium carneum changed from 2.2 to 2B.2 on 2013-06-12
Pohlia tundrae changed from 2.3 to 2B.3 on 2013-06-12
Poa lettermanii changed from 2.3 to 2B.3 on 2013-06-12
Poa abbreviata ssp. pattersonii changed from 2.3 to 2B.3 on 2013-06-12
Poa abbreviata ssp. marshii changed from 2.3 to 2B.3 on 2013-06-12
Plagiobothrys verrucosus changed from 2.1 to 2B.1 on 2013-06-12
Plagiobothrys salsus changed from 2.2 to 2B.2 on 2013-06-12
Plagiobothrys nitens changed from 2.1 to 2B.1 on 2013-06-12
Pinguicula macroceras changed from 2.2 to 2B.2 on 2013-06-12
Picea engelmannii changed from 2.2 to 2B.2 on 2013-06-12
Physocarpus alternans changed from 2.3 to 2B.3 on 2013-06-12
Physaria ludoviciana changed from 2.2 to 2B.2 on 2013-06-12
Physaria chambersii changed from 2.3 to 2B.3 on 2013-06-12
Physalis lobata changed from 2.3 to 2B.3 on 2013-06-12
Pholistoma auritum var. arizonicum changed from 2.3 to 2B.3 on 2013-06-12
Phlox muscoides changed from 2.3 to 2B.3 on 2013-06-12
Phaseolus filiformis changed from 2.1 to 2B.1 on 2013-06-12
Phacelia sericea var. ciliosa changed from 2.3 to 2B.3 on 2013-06-12
Phacelia pulchella var. gooddingii changed from 2.2 to 2B.2 on 2013-06-12
Phacelia gymnoclada changed from 2.3 to 2B.3 on 2013-06-12
Phacelia coerulea changed from 2.3 to 2B.3 on 2013-06-12
Phacelia barnebyana changed from 2.3 to 2B.3 on 2013-06-12
Phacelia anelsonii changed from 2.3 to 2B.3 on 2013-06-12
Peteria thompsoniae changed from 2.1 to 2B.1 on 2013-06-12
Perideridia parishii ssp. parishii changed from 2.2 to 2B.2 on 2013-06-12
Penstemon utahensis changed from 2.3 to 2B.3 on 2013-06-12
Penstemon thompsoniae changed from 2.3 to 2B.3 on 2013-06-12
Penstemon pseudospectabilis ssp. pseudospectabilis changed from 2.2 to 2B.2 on 2013-06-12
Penstemon pahutensis changed from 2.3 to 2B.3 on 2013-06-12
Penstemon janishiae changed from 2.2 to 2B.2 on 2013-06-12
Penstemon barnebyi changed from 2.1 to 2B.1 on 2013-06-12
Pellaea truncata changed from 2.3 to 2B.3 on 2013-06-12
Pedicularis crenulata changed from 2.2 to 2B.2 on 2013-06-12
Pedicularis centranthera changed from 2.3 to 2B.3 on 2013-06-12
Parnassia parviflora changed from 2.2 to 2B.2 on 2013-06-12
Parnassia cirrata var. intermedia changed from 2.2 to 2B.2 on 2013-06-12
Packera indecora changed from 2.2 to 2B.2 on 2013-06-12
Packera hesperia changed from 2.2 to 2B.2 on 2013-06-12
Packera bolanderi var. bolanderi changed from 2.2 to 2B.2 on 2013-06-12
Oxytropis oreophila var. oreophila changed from 2.3 to 2B.3 on 2013-06-12
Oxytropis deflexa var. sericea changed from 2.1 to 2B.1 on 2013-06-12
Oxytheca watsonii changed from 2.2 to 2B.2 on 2013-06-12
Osmorhiza depauperata changed from 2.3 to 2B.3 on 2013-06-12
Oryctes nevadensis changed from 2.1 to 2B.1 on 2013-06-12
Orobanche ludoviciana var. arenosa changed from 2.3 to 2B.3 on 2013-06-12
Ornithostaphylos oppositifolia changed from 2.1 to 2B.1 on 2013-06-12
Opuntia xcurvispina changed from 2.2 to 2B.2 on 2013-06-12
Opuntia fragilis changed from 2.1 to 2B.1 on 2013-06-12
Ophioglossum pusillum changed from 2.2 to 2B.2 on 2013-06-12
Oenothera longissima changed from 2.2 to 2B.2 on 2013-06-12
Oenothera cavernae changed from 2.1 to 2B.1 on 2013-06-12
Nemophila breviflora changed from 2.3 to 2B.3 on 2013-06-12
Nemacaulis denudata var. gracilis changed from 2.2 to 2B.2 on 2013-06-12
Nama stenocarpum changed from 2.2 to 2B.2 on 2013-06-12
Nama dichotomum var. dichotomum changed from 2.3 to 2B.3 on 2013-06-12
Myurella julacea changed from 2.3 to 2B.3 on 2013-06-12
Munroa squarrosa changed from 2.2 to 2B.2 on 2013-06-12
Muhlenbergia pauciflora changed from 2.3 to 2B.3 on 2013-06-12
Muhlenbergia fragilis changed from 2.3 to 2B.3 on 2013-06-12
Muhlenbergia arsenei changed from 2.3 to 2B.3 on 2013-06-12
Muhlenbergia appressa changed from 2.2 to 2B.2 on 2013-06-12
Muhlenbergia alopecuroides changed from 2.2 to 2B.2 on 2013-06-12
Montia howellii changed from 2.2 to 2B.2 on 2013-06-12
Monotropa uniflora changed from 2.2 to 2B.2 on 2013-06-12
Moneses uniflora changed from 2.2 to 2B.2 on 2013-06-12
Monarda pectinata changed from 2.3 to 2B.3 on 2013-06-12
Mirabilis coccinea changed from 2.3 to 2B.3 on 2013-06-12
Minuartia stricta changed from 2.3 to 2B.3 on 2013-06-12
Mimulus parryi changed from 2.3 to 2B.3 on 2013-06-12
Mimulus glabratus ssp. utahensis changed from 2.1 to 2B.1 on 2013-06-12
Mimulus cusickii changed from 2.3 to 2B.3 on 2013-06-12
Mielichhoferia mielichhoferiana changed from 2.3 to 2B.3 on 2013-06-12
Mielichhoferia elongata changed from 2.2 to 2B.2 on 2013-06-12
Microseris laciniata ssp. detlingii changed from 2.2 to 2B.2 on 2013-06-12
Microseris borealis changed from 2.1 to 2B.1 on 2013-06-12
Micromonolepis pusilla changed from 2.3 to 2B.3 on 2013-06-12
Mertensia oblongifolia var. oblongifolia changed from 2.2 to 2B.2 on 2013-06-12
Mertensia oblongifolia var. amoena changed from 2.2 to 2B.2 on 2013-06-12
Mertensia longiflora changed from 2.2 to 2B.2 on 2013-06-12
Mertensia cusickii changed from 2.2 to 2B.2 on 2013-06-12
Mertensia bella changed from 2.2 to 2B.2 on 2013-06-12
Mentzelia tricuspis changed from 2.1 to 2B.1 on 2013-06-12
Mentzelia torreyi changed from 2.2 to 2B.2 on 2013-06-12
Mentzelia puberula changed from 2.2 to 2B.2 on 2013-06-12
Mentzelia pterosperma changed from 2.2 to 2B.2 on 2013-06-12
Mentzelia hirsutissima changed from 2.3 to 2B.3 on 2013-06-12
Menodora scabra changed from 2.3 to 2B.3 on 2013-06-12
Meesia uliginosa changed from 2.2 to 2B.2 on 2013-06-12
Maurandella antirrhiniflora changed from 2.3 to 2B.3 on 2013-06-12
Matelea parvifolia changed from 2.3 to 2B.3 on 2013-06-12
Mammillaria grahamii var. grahamii changed from 2.2 to 2B.2 on 2013-06-12
Malperia tenuis changed from 2.3 to 2B.3 on 2013-06-12
Malaxis monophyllos var. brachypoda changed from 2.1 to 2B.1 on 2013-06-12
Lysimachia thyrsiflora changed from 2.3 to 2B.3 on 2013-06-12
Lycopodiella inundata changed from 2.2 to 2B.2 on 2013-06-12
Lycium parishii changed from 2.3 to 2B.3 on 2013-06-12
Lupinus uncialis changed from 2.2 to 2B.2 on 2013-06-12
Lupinus pusillus var. intermontanus changed from 2.3 to 2B.3 on 2013-06-12
Lupinus holmgrenianus changed from 2.3 to 2B.3 on 2013-06-12
Lomatium ravenii changed from 2.3 to 2B.3 on 2013-06-12
Lomatium peckianum changed from 2.2 to 2B.2 on 2013-06-12
Lomatium martindalei changed from 2.3 to 2B.3 on 2013-06-12
Lomatium hendersonii changed from 2.3 to 2B.3 on 2013-06-12
Lomatium grayi changed from 2.3 to 2B.3 on 2013-06-12
Lomatium foeniculaceum var. macdougalii changed from 2.2 to 2B.2 on 2013-06-12
Loeflingia squarrosa var. artemisiarum changed from 2.2 to 2B.2 on 2013-06-12
Lithospermum incisum changed from 2.3 to 2B.3 on 2013-06-12
Linum puberulum changed from 2.3 to 2B.3 on 2013-06-12
Limosella australis changed from 2.1 to 2B.1 on 2013-06-12
Lewisia oppositifolia changed from 2.2 to 2B.2 on 2013-06-12
Lewisia brachycalyx changed from 2.2 to 2B.2 on 2013-06-12
Leptosyne maritima changed from 2.2 to 2B.2 on 2013-06-12
Lathyrus rigidus changed from 2.2 to 2B.2 on 2013-06-12
Lathyrus palustris changed from 2.2 to 2B.2 on 2013-06-12
Lathyrus japonicus changed from 2.1 to 2B.1 on 2013-06-12
Ladeania lanceolata changed from 2.3 to 2B.3 on 2013-06-12
Kopsiopsis hookeri changed from 2.3 to 2B.3 on 2013-06-12
Koeberlinia spinosa ssp. tenuispina changed from 2.2 to 2B.2 on 2013-06-12
Kobresia myosuroides changed from 2.2 to 2B.2 on 2013-06-12
Juncus supiniformis changed from 2.2 to 2B.2 on 2013-06-12
Juncus regelii changed from 2.3 to 2B.3 on 2013-06-12
Juncus nodosus changed from 2.3 to 2B.3 on 2013-06-12
Juncus nevadensis var. inventus changed from 2.2 to 2B.2 on 2013-06-12
Juncus interior changed from 2.2 to 2B.2 on 2013-06-12
Juncus dudleyi changed from 2.3 to 2B.3 on 2013-06-12
Johanneshowellia puberula changed from 2.3 to 2B.3 on 2013-06-12
Ivesia kingii var. kingii changed from 2.2 to 2B.2 on 2013-06-12
Ivesia baileyi var. beneolens changed from 2.3 to 2B.3 on 2013-06-12
Ivesia baileyi var. baileyi changed from 2.3 to 2B.3 on 2013-06-12
Ivesia arizonica var. arizonica changed from 2.3 to 2B.3 on 2013-06-12
Iva hayesiana changed from 2.2 to 2B.2 on 2013-06-12
Ipomopsis tenuifolia changed from 2.3 to 2B.3 on 2013-06-12
Ipomopsis effusa changed from 2.1 to 2B.1 on 2013-06-12
Imperata brevifolia changed from 2.1 to 2B.1 on 2013-06-12
Hymenoxys odorata changed from 2.1 to 2B.1 on 2013-06-12
Hymenoxys lemmonii changed from 2.2 to 2B.2 on 2013-06-12
Hymenopappus filifolius var. nanus changed from 2.3 to 2B.3 on 2013-06-12
Hymenopappus filifolius var. eriopodus changed from 2.3 to 2B.3 on 2013-06-12
Hulsea vestita ssp. inyoensis changed from 2.2 to 2B.2 on 2013-06-12
Hulsea nana changed from 2.3 to 2B.3 on 2013-06-12
Hulsea mexicana changed from 2.3 to 2B.3 on 2013-06-12
Howellia aquatilis changed from 2.2 to 2B.2 on 2013-06-12
Horkelia congesta ssp. nemorosa changed from 2.1 to 2B.1 on 2013-06-12
Hierochloe odorata changed from 2.3 to 2B.3 on 2013-06-12
Herissantia crispa changed from 2.3 to 2B.3 on 2013-06-12
Hemieva ranunculifolia changed from 2.2 to 2B.2 on 2013-06-12
Helodium blandowii changed from 2.3 to 2B.3 on 2013-06-12
Hedeoma drummondii changed from 2.2 to 2B.2 on 2013-06-12
Hackelia sharsmithii changed from 2.3 to 2B.3 on 2013-06-12
Grusonia parishii changed from 2.2 to 2B.2 on 2013-06-12
Grusonia pulchella changed from 2.2 to 2B.2 on 2013-06-12
Glyceria grandis changed from 2.3 to 2B.3 on 2013-06-12
Gilia mexicana changed from 2.3 to 2B.3 on 2013-06-12
Geum aleppicum changed from 2.2 to 2B.2 on 2013-06-12
Geraea viscida changed from 2.3 to 2B.3 on 2013-06-12
Gentiana prostrata changed from 2.3 to 2B.3 on 2013-06-12
Gentiana fremontii changed from 2.3 to 2B.3 on 2013-06-12
Galium wrightii changed from 2.3 to 2B.3 on 2013-06-12
Galium proliferum changed from 2.2 to 2B.2 on 2013-06-12
Fraxinus parryi changed from 2.2 to 2B.2 on 2013-06-12
Frasera umpquaensis changed from 2.2 to 2B.2 on 2013-06-12
Frankenia palmeri changed from 2.1 to 2B.1 on 2013-06-12
Fissidens aphelotaxifolius changed from 2.2 to 2B.2 on 2013-06-12
Fimbristylis thermalis changed from 2.2 to 2B.2 on 2013-06-12
Festuca minutiflora changed from 2.3 to 2B.3 on 2013-06-12
Ferocactus viridescens changed from 2.1 to 2B.1 on 2013-06-12
Eurybia merita changed from 2.3 to 2B.3 on 2013-06-12
Euphorbia misera changed from 2.2 to 2B.2 on 2013-06-12
Euphorbia exstipulata var. exstipulata changed from 2.1 to 2B.1 on 2013-06-12
Eucnide rupestris changed from 2.2 to 2B.2 on 2013-06-12
Erythronium revolutum changed from 2.2 to 2B.2 on 2013-06-12
Erythronium oregonum changed from 2.2 to 2B.2 on 2013-06-12
Erythronium klamathense changed from 2.2 to 2B.2 on 2013-06-12
Erythronium hendersonii changed from 2.3 to 2B.3 on 2013-06-12
Erioneuron pilosum changed from 2.3 to 2B.3 on 2013-06-12
Eriogonum umbellatum var. juniporinum changed from 2.3 to 2B.3 on 2013-06-12
Eriogonum pyrolifolium var. pyrolifolium changed from 2.3 to 2B.3 on 2013-06-12
Eriogonum pendulum changed from 2.2 to 2B.2 on 2013-06-12
Eriogonum ovalifolium var. depressum changed from 2.1 to 2B.1 on 2013-06-12
Eriogonum ochrocephalum var. ochrocephalum changed from 2.2 to 2B.2 on 2013-06-12
Eriogonum nutans var. nutans changed from 2.3 to 2B.3 on 2013-06-12
Eriogonum nudum var. paralinum changed from 2.2 to 2B.2 on 2013-06-12
Eriogonum diclinum changed from 2.3 to 2B.3 on 2013-06-12
Eriogonum contiguum changed from 2.3 to 2B.3 on 2013-06-12
Eriodictyon angustifolium changed from 2.3 to 2B.3 on 2013-06-12
Erigeron utahensis changed from 2.3 to 2B.3 on 2013-06-12
Erigeron oxyphyllus changed from 2.3 to 2B.3 on 2013-06-12
Erigeron nivalis changed from 2.3 to 2B.3 on 2013-06-12
Erigeron eatonii var. nevadincola changed from 2.3 to 2B.3 on 2013-06-12
Erigeron compactus changed from 2.3 to 2B.3 on 2013-06-12
Erigeron bloomeri var. nudatus changed from 2.3 to 2B.3 on 2013-06-12
Eremothera minor changed from 2.3 to 2B.3 on 2013-06-12
Eremothera boothii ssp. intermedia changed from 2.3 to 2B.3 on 2013-06-12
Eremothera boothii ssp. boothii changed from 2.3 to 2B.3 on 2013-06-12
Epilobium palustre changed from 2.3 to 2B.3 on 2013-06-12
Epilobium luteum changed from 2.3 to 2B.3 on 2013-06-12
Ephedra torreyana changed from 2.1 to 2B.1 on 2013-06-12
Enneapogon desvauxii changed from 2.2 to 2B.2 on 2013-06-12
Empetrum nigrum changed from 2.2 to 2B.2 on 2013-06-12
Elymus scribneri changed from 2.3 to 2B.3 on 2013-06-12
Elymus salina changed from 2.3 to 2B.3 on 2013-06-12
Dudleya attenuata ssp. orcuttii changed from 2.1 to 2B.1 on 2013-06-12
Dryopteris filix-mas changed from 2.3 to 2B.3 on 2013-06-12
Drosera anglica changed from 2.3 to 2B.3 on 2013-06-12
Draba praealta changed from 2.3 to 2B.3 on 2013-06-12
Draba lonchocarpa changed from 2.3 to 2B.3 on 2013-06-12
Draba cana changed from 2.3 to 2B.3 on 2013-06-12
Downingia pusilla changed from 2.2 to 2B.2 on 2013-06-12
Downingia laeta changed from 2.2 to 2B.2 on 2013-06-12
Ditaxis claryana changed from 2.2 to 2B.2 on 2013-06-12
Discelium nudum changed from 2.2 to 2B.2 on 2013-06-12
Dimeresia howellii changed from 2.3 to 2B.3 on 2013-06-12
Digitaria californica var. californica changed from 2.3 to 2B.3 on 2013-06-12
Dieteria asteroides var. lagunensis changed from 2.1 to 2B.1 on 2013-06-12
Didymodon norrisii changed from 2.2 to 2B.2 on 2013-06-12
Dicranostegia orcuttiana changed from 2.1 to 2B.1 on 2013-06-12
Delphinium stachydeum changed from 2.3 to 2B.3 on 2013-06-12
Delphinium scaposum changed from 2.3 to 2B.3 on 2013-06-12
Dalea ornata changed from 2.1 to 2B.1 on 2013-06-12
Cymopterus multinervatus changed from 2.2 to 2B.2 on 2013-06-12
Cymopterus globosus changed from 2.2 to 2B.2 on 2013-06-12
Cymopterus gilmanii changed from 2.3 to 2B.3 on 2013-06-12
Cuscuta obtusiflora var. glandulosa changed from 2.2 to 2B.2 on 2013-06-12
Cuniculotinus gramineus changed from 2.3 to 2B.3 on 2013-06-12
Cryptantha schoolcraftii changed from 2.2 to 2B.2 on 2013-06-12
Cryptantha fendleri changed from 2.2 to 2B.2 on 2013-06-12
Cryptantha celosioides changed from 2.3 to 2B.3 on 2013-06-12
Croton wigginsii changed from 2.2 to 2B.2 on 2013-06-12
Crepis runcinata ssp. hallii changed from 2.1 to 2B.1 on 2013-06-12
Coryphantha vivipara var. rosea changed from 2.2 to 2B.2 on 2013-06-12
Coryphantha chlorantha changed from 2.1 to 2B.1 on 2013-06-12
Cornus canadensis changed from 2.2 to 2B.2 on 2013-06-12
Corispermum americanum var. americanum changed from 2.2 to 2B.2 on 2013-06-12
Cordylanthus parviflorus changed from 2.3 to 2B.3 on 2013-06-12
Cordylanthus capitatus changed from 2.2 to 2B.2 on 2013-06-12
Corallorhiza trifida changed from 2.1 to 2B.1 on 2013-06-12
Coptis laciniata changed from 2.2 to 2B.2 on 2013-06-12
Colubrina californica changed from 2.3 to 2B.3 on 2013-06-12
Collomia tenella changed from 2.2 to 2B.2 on 2013-06-12
Collomia larsenii changed from 2.2 to 2B.2 on 2013-06-12
Cochlearia officinalis var. arctica changed from 2.3 to 2B.3 on 2013-06-12
Cleomella hillmanii var. hillmanii changed from 2.2 to 2B.2 on 2013-06-12
Claytonia umbellata changed from 2.3 to 2B.3 on 2013-06-12
Claytonia megarhiza changed from 2.3 to 2B.3 on 2013-06-12
Cladium californicum changed from 2.2 to 2B.2 on 2013-06-12
Cirsium ciliolatum changed from 2.1 to 2B.1 on 2013-06-12
Cicuta maculata var. bolanderi changed from 2.1 to 2B.1 on 2013-06-12
Chylismia claviformis ssp. cruciformis changed from 2.3 to 2B.3 on 2013-06-12
Chylismia arenaria changed from 2.2 to 2B.2 on 2013-06-12
Chrysothamnus greenei changed from 2.3 to 2B.3 on 2013-06-12
Cheilanthes wootonii changed from 2.3 to 2B.3 on 2013-06-12
Chamaesyce parryi changed from 2.3 to 2B.3 on 2013-06-12
Chamaesyce arizonica changed from 2.3 to 2B.3 on 2013-06-12
Chamaesyce abramsiana changed from 2.2 to 2B.2 on 2013-06-12
Chaetadelpha wheeleri changed from 2.2 to 2B.2 on 2013-06-12
Chaenactis douglasii var. alpina changed from 2.3 to 2B.3 on 2013-06-12
Ceanothus verrucosus changed from 2.2 to 2B.2 on 2013-06-12
Castilleja litoralis changed from 2.2 to 2B.2 on 2013-06-12
Castilleja elata changed from 2.2 to 2B.2 on 2013-06-12
Castela emoryi changed from 2.2 to 2B.2 on 2013-06-12
Cascadia nuttallii changed from 2.1 to 2B.1 on 2013-06-12
Carnegiea gigantea changed from 2.2 to 2B.2 on 2013-06-12
Carlowrightia arizonica changed from 2.2 to 2B.2 on 2013-06-12
Carex viridula var. viridula changed from 2.3 to 2B.3 on 2013-06-12
Carex vallicola changed from 2.3 to 2B.3 on 2013-06-12
Carex stevenii changed from 2.2 to 2B.2 on 2013-06-12
Carex sheldonii changed from 2.2 to 2B.2 on 2013-06-12
Carex serpenticola changed from 2.3 to 2B.3 on 2013-06-12
Carex scoparia var. scoparia changed from 2.2 to 2B.2 on 2013-06-12
Carex scirpoidea ssp. pseudoscirpoidea changed from 2.2 to 2B.2 on 2013-06-12
Carex praticola changed from 2.2 to 2B.2 on 2013-06-12
Carex petasata changed from 2.3 to 2B.3 on 2013-06-12
Carex occidentalis changed from 2.3 to 2B.3 on 2013-06-12
Carex lyngbyei changed from 2.2 to 2B.2 on 2013-06-12
Carex limosa changed from 2.2 to 2B.2 on 2013-06-12
Carex leptalea changed from 2.2 to 2B.2 on 2013-06-12
Carex lenticularis var. limnophila changed from 2.2 to 2B.2 on 2013-06-12
Carex lasiocarpa changed from 2.3 to 2B.3 on 2013-06-12
Carex idahoa changed from 2.3 to 2B.3 on 2013-06-12
Carex hystericina changed from 2.1 to 2B.1 on 2013-06-12
Carex halliana changed from 2.3 to 2B.3 on 2013-06-12
Carex comosa changed from 2.1 to 2B.1 on 2013-06-12
Carex californica changed from 2.3 to 2B.3 on 2013-06-12
Carex atherodes changed from 2.2 to 2B.2 on 2013-06-12
Carex arcta changed from 2.2 to 2B.2 on 2013-06-12
Cardamine angulata changed from 2.1 to 2B.1 on 2013-06-12
Campylopodiella stenocarpa changed from 2.2 to 2B.2 on 2013-06-12
Calyptridium arizonicum changed from 2.1 to 2B.1 on 2013-06-12
Calliandra eriophylla changed from 2.3 to 2B.3 on 2013-06-12
Calamagrostis crassiglumis changed from 2.1 to 2B.1 on 2013-06-12
Buxbaumia viridis changed from 2.2 to 2B.2 on 2013-06-12
Bursera microphylla changed from 2.3 to 2B.3 on 2013-06-12
Bruchia bolanderi changed from 2.2 to 2B.2 on 2013-06-12
Brasenia schreberi changed from 2.3 to 2B.3 on 2013-06-12
Bouteloua trifida changed from 2.3 to 2B.3 on 2013-06-12
Botrypus virginianus changed from 2.2 to 2B.2 on 2013-06-12
Botrychium yaaxudakeit changed from 2.1 to 2B.1 on 2013-06-12
Botrychium tunux changed from 2.1 to 2B.1 on 2013-06-12
Botrychium pumicola changed from 2.2 to 2B.2 on 2013-06-12
Botrychium pinnatum changed from 2.3 to 2B.3 on 2013-06-12
Botrychium pedunculosum changed from 2.1 to 2B.1 on 2013-06-12
Botrychium paradoxum changed from 2.1 to 2B.1 on 2013-06-12
Botrychium montanum changed from 2.1 to 2B.1 on 2013-06-12
Botrychium minganense changed from 2.2 to 2B.2 on 2013-06-12
Botrychium lunaria changed from 2.3 to 2B.3 on 2013-06-12
Botrychium crenulatum changed from 2.2 to 2B.2 on 2013-06-12
Botrychium ascendens changed from 2.3 to 2B.3 on 2013-06-12
Boechera shockleyi changed from 2.2 to 2B.2 on 2013-06-12
Boechera pendulina changed from 2.3 to 2B.3 on 2013-06-12
Boechera lincolnensis changed from 2.3 to 2B.3 on 2013-06-12
Boechera dispar changed from 2.3 to 2B.3 on 2013-06-12
Boechera cobrensis changed from 2.3 to 2B.3 on 2013-06-12
Blepharidachne kingii changed from 2.3 to 2B.3 on 2013-06-12
Betula glandulosa changed from 2.2 to 2B.2 on 2013-06-12
Bergerocactus emoryi changed from 2.2 to 2B.2 on 2013-06-12
Balsamorhiza serrata changed from 2.3 to 2B.3 on 2013-06-12
Ayenia compacta changed from 2.3 to 2B.3 on 2013-06-12
Atriplex pusilla changed from 2.1 to 2B.1 on 2013-06-12
Atriplex gardneri var. falcata changed from 2.2 to 2B.2 on 2013-06-12
Atriplex argentea var. hillmanii changed from 2.2 to 2B.2 on 2013-06-12
Astrolepis cochisensis ssp. cochisensis changed from 2.3 to 2B.3 on 2013-06-12
Astragalus umbraticus changed from 2.3 to 2B.3 on 2013-06-12
Astragalus tidestromii changed from 2.2 to 2B.2 on 2013-06-12
Astragalus serenoi var. shockleyi changed from 2.2 to 2B.2 on 2013-06-12
Astragalus sabulonum changed from 2.2 to 2B.2 on 2013-06-12
Astragalus preussii var. preussii changed from 2.1 to 2B.1 on 2013-06-12
Astragalus platytropis changed from 2.2 to 2B.2 on 2013-06-12
Astragalus kentrophyta var. ungulatus changed from 2.2 to 2B.2 on 2013-06-12
Astragalus kentrophyta var. elatus changed from 2.2 to 2B.2 on 2013-06-12
Astragalus insularis var. harwoodii changed from 2.2 to 2B.2 on 2013-06-12
Astragalus geyeri var. geyeri changed from 2.2 to 2B.2 on 2013-06-12
Astragalus argophyllus var. argophyllus changed from 2.2 to 2B.2 on 2013-06-12
Astragalus allochrous var. playanus changed from 2.2 to 2B.2 on 2013-06-12
Astragalus agrestis changed from 2.2 to 2B.2 on 2013-06-12
Asplenium viride changed from 2.3 to 2B.3 on 2013-06-12
Asplenium trichomanes ssp. trichomanes changed from 2.1 to 2B.1 on 2013-06-12
Asplenium septentrionale changed from 2.3 to 2B.3 on 2013-06-12
Asclepias nyctaginifolia changed from 2.1 to 2B.1 on 2013-06-12
Asarum marmoratum changed from 2.3 to 2B.3 on 2013-06-12
Artemisia tripartita ssp. tripartita changed from 2.3 to 2B.3 on 2013-06-12
Arnica fulgens changed from 2.2 to 2B.2 on 2013-06-12
Argyrochosma limitanea ssp. limitanea changed from 2.3 to 2B.3 on 2013-06-12
Arenaria lanuginosa var. saxosa changed from 2.3 to 2B.3 on 2013-06-12
Arctomecon merriamii changed from 2.2 to 2B.2 on 2013-06-12
Arabis aculeolata changed from 2.2 to 2B.2 on 2013-06-12
Antennaria marginata changed from 2.3 to 2B.3 on 2013-06-12
Anomobryum julaceum changed from 2.2 to 2B.2 on 2013-06-12
Androstephium breviflorum changed from 2.2 to 2B.2 on 2013-06-12
Androsace occidentalis changed from 2.3 to 2B.3 on 2013-06-12
Androsace filiformis changed from 2.3 to 2B.3 on 2013-06-12
Ammoselinum giganteum changed from 2.3 to 2B.3 on 2013-06-12
Ambrosia monogyra changed from 2.2 to 2B.2 on 2013-06-12
Ambrosia chenopodiifolia changed from 2.1 to 2B.1 on 2013-06-12
Allium punctum changed from 2.2 to 2B.2 on 2013-06-12
Allium nevadense changed from 2.3 to 2B.3 on 2013-06-12
Allium atrorubens var. atrorubens changed from 2.3 to 2B.3 on 2013-06-12
Alisma gramineum changed from 2.2 to 2B.2 on 2013-06-12
Aliciella triodon changed from 2.2 to 2B.2 on 2013-06-12
Aliciella ripleyi changed from 2.3 to 2B.3 on 2013-06-12
Agrostis humilis changed from 2.3 to 2B.3 on 2013-06-12
Ageratina herbacea changed from 2.3 to 2B.3 on 2013-06-12
Agave shawii var. shawii changed from 2.1 to 2B.1 on 2013-06-12
Adolphia californica changed from 2.1 to 2B.1 on 2013-06-12
Acleisanthes nevadensis changed from 2.1 to 2B.1 on 2013-06-12
Acleisanthes longiflora changed from 2.3 to 2B.3 on 2013-06-12
Abutilon parvulum changed from 2.3 to 2B.3 on 2013-06-12
Abies lasiocarpa var. lasiocarpa changed from 2.3 to 2B.3 on 2013-06-12
Abies amabilis changed from 2.3 to 2B.3 on 2013-06-12
Stylocline sonorensis changed from 1A to 2A on 2013-06-12
Pyrola chlorantha changed from 1A to 2A on 2013-06-12
Poliomintha incana changed from 1A to 2A on 2013-06-12
Malacothrix similis changed from 1A to 2A on 2013-06-12
Carex livida changed from 1A to 2A on 2013-06-12

All Major Changes Since 6th Edition, 2001

Currently in Review

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Major Contributors
Additional Funding Provided by: Beatrice Harris \| LSA Associates \| Sapphos Environmental