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3-2020

A Checklist of Vascular Plants Endemic to California

James P. Smith Jr Humboldt State University, [email protected]

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Recommended Citation Smith, James P. Jr, "A Checklist of Vascular Plants Endemic to California" (2020). Botanical Studies. 42. https://digitalcommons.humboldt.edu/botany_jps/42

This Flora of California is brought to you for free and open access by the Open Educational Resources and Data at Digital Commons @ Humboldt State University. It has been accepted for inclusion in Botanical Studies by an authorized administrator of Digital Commons @ Humboldt State University. For more information, please contact [email protected]. A LIST OF THE VASCULAR PLANTS ENDEMIC TO CALIFORNIA

Compiled By James P. Smith, Jr. Professor Emeritus of Botany Department of Biological Sciences Humboldt State University Arcata, California

13 February 2020

CONTENTS Willis Jepson (1923-1925) recognized that the assemblage of plants that characterized our flora excludes the desert province of southwest California Introduction...... 1 and extends beyond its political boundaries to include An Overview...... 2 southwestern Oregon, a small portion of western Endemic Genera ...... 2 Nevada, and the northern portion of Baja California, Almost Endemic Genera ...... 3 Mexico. This expanded region became known as the California Floristic Province (CFP). Keep in mind that List of Endemic Plants ...... 4 not all plants endemic to California lie within the CFP Plants Endemic to a Single County or Island 24 and others that are endemic to the CFP are not County and Channel Island Abbreviations . . 28 found in California. Bibliography ...... 29 There are degrees of endemism. A few plants are known only from the original collection; some from a INTRODUCTION single naturally occurring population. Others range over many counties. I have included a list of the plants that are restricted to a single county or to Endemic may be an unfamiliar word. It comes from only one of the Channel Islands. Some perspective the Greek and means “in + people.” I think we might be useful. San Bernardino County has an area borrowed the term from medicine where it was used of 20,105 square miles, which makes it larger than to describe a disease or condition that was common, any of our nine smallest states and 71 countries. Our characteristic, or restricted to a particular region or smallest county is San Francisco, with 47 square people; later in a broader sense to describe miles. conditions such as poverty or complacency. The first comprehensive statement regarding our In botany and zoology, we use the term to describe state’s endemic plants appears in the introductory a plant or animal that is native to a particular place material in Jepson (1923-1925). He noted that of the or region and found naturally no where else. 3727 species native to California, 1416 (38%) were endemic. Jepson also explained that some of our Alice Eastwood (1947) observed that the single most endemics are relicts that once had much wider striking feature of the California flora is its high distributions, but now persist in more restricted number of endemics – plants that are native here and favorable refugia, while others are more recently nowhere else. The primary purpose of this inventory evolved and have not had time to expand their range. is to catalog the endemic genera, species, subspecies, and varieties of vascular plants (lycophytes, ferns, HOW MANY ENDEMICS? A REVIEW gymnosperms, and flowering plants) found in California. I have included plants that are now presumed to be extinct. Genera Species MRT

1 I based this checklist on distribution information Jepson 24 1440 2588 found in Jepson (1923-1925), Munz (1959, 1968, 1974), Hickman (1993), the Flora North America Munz (1959) 2 29 1414 2401 North of Mexico (1993 û), Baldwin et al. (2012), Kartesz (2016),, the United States Department of Raven & Axelrod 26 1517 ' Agriculture’s Plants Database, and the Consortium of California Herbaria (my primary source). I have also Hickman 25 1416 2153 used a number of recent papers and floras.

-1- ' distribution data and new collections can mean that Burge et al. 1697 2431 a plant is no longer endemic. There are judgement calls. Is an occurrence perhaps better treated as an ' ' Baldwin et al. 1315 escape from cultivation? Should a single collection from far out of range made decades ago be taken Harrison 59 1455 2264 into account?

1 - as reported in Howell (1956) I ask that you bring errors of commission or omission 2 - as reported in Noldeke & Howell (1960) to my attention at [email protected]. MRT = minimum ranked taxa ' = not indicated E N D E M I C G E N E R A AN OVERVIEW Compositae My studies report that there are 37 genera, 1636 Benitoa species, and 2356 minimum ranked taxa of vascular Blepharizonia plants endemic to California. The totals are Carlquistia considerably higher than those of any other state. Constancea The number of minimum ranked taxa endemic Eastwoodia California is only slightly smaller than that found in Harmonia Florida, Hawaii, and Texas combined. Holocarpha Holozonia Using data presented in The Jepson Manual, 2.8% of Jensia our state’s genera are endemic, as are 31% of all Monolopia taxa, and 36.2% of the native taxa. Munzothamnus Orochaenactis The five families with the highest number of endemic Phalacroseris taxa are Compositae (332), Leguminosae (216), Pseudobahia Scrophulariaceae (177), Polygonaceae (160), and Tracyina Polemoniaceae (127). Crassulaceae The five genera with the highest number of endemic Sedella taxa are Eriogonum (108), Lupinus (82), Arcto- staphylos (82), Astragalus (70), and Clarkia (49). Cruciferae Sibaropsis The five counties or Channel Islands with the highest number of plants restricted to a single county or Cupressaceae island are Inyo (39), San Bernardino (36), San Luis Sequoiadendron Obispo (32), San Diego (25), and Kern (19). Gramineae There are 446 minimum rank taxa known from a Neostapfia single county or Channel Island. Swallenia

NUMERICAL SUMMARY Hydrangeaceae Carpenteria Genera Species Taxa Hydrophyllaceae Draperia Lycophytes 0 1 1 Howellanthus

Ferns 0 9 9 Papaveraceae Hesperomecon Gymnosperms 1 13 15 Polygonaceae Flowering Plants 36 1613 2329 Acanthoscyphus Aristocapsa Totals 37 1638 2358 Dedeckera Dodecahema Gilmania A REQUEST Hollisteria Mucronea Projects of this sort are subject to inherent Systenotheca difficulties. Authoritative sources differ in their

-2- Rosaceae Sequoia (1 of 1, Oregon) Horkeliella Lyonothamnus Ericaceae Ornithostaphylos (1 of 1, Baja California) Scrophulariaceae Sarcodes (1 of 1, CFP) Holmgrenanthe Xylococcus (1 of 1, Baja California) Howelliella Fagaceae Umbelliferae Notholithocarpus (1 of 1, Oregon) Oreonana Gramineae Orcuttia (1 of 5, Baja California) A L M O S T E N D E M I C G E N E R A Tuctoria (1 of 3, Baja California) Hydrophyllaceae Using Cycladenia as an example, of the three taxa in Harpagonella (1 of 1, Arizona & Baja California) that genus two are endemic to California and one is also found in Arizona and Utah. Labiatae Acanthomintha (1 of 4, Baja California) Amaranthaceae Aphanisma (1 of 1, Baja California) Leguminosae Pickeringia (1 of 2 varieties, Baja California) Anacardiaceae Malosma (1 of 1, Baja California) Liliaceae Scoliopus (1 of 2, Oregon) Apocynaceae Cycladenia (1 of 3 varieties, Arizona & Utah) Limnanthaceae Limnanthes (1 of 7, Oregon) Asparagaceae Bloomeria (2 of 3, Baja California) Malvaceae Chlorogalum (2 of 5, Baja California & Oregon) Malacothamnus (2 of 12, Baja California) Hastingsia (2 of 2, Oregon) Hesperocallis (1 of 1, Arizona) Palmae Hesperoyucca (1 of 1, Baja California) Washingtonia (1 of 2, Arizona & Baja California) Hooveria (1 of 3, Baja California) Muilla (2 of 3, Nevada) Polygonaceae Goodmania (1 of 1, Nevada) Boraginaceae Johanneshowellia (1 of 1, Utah) Pholistoma (3 of 3, Arizona & Baja California) Nemacaulis (1 of 1, Arizona & Baja California) Sidotheca (1 of 3, Baja California) Campanulaceae Legenere (1 of 2, Chile) Rosaceae Adenostoma (2 of 2, Mexico) Cleomaceae Chamaebatia (1 of 2, Baja California) Carsonia (1 of 1, Nevada) Heteromeles (1 of 1, Mexico) Oxystylis (1 of 1, Nevada) Neviusia (1 of 2, southeastern U. S.)

Compositae Rutaceae Ambylopappus (1 of 1, Baja & S. America) Cneoridium (1 of 1, Baja California) Blennosperma (1 of 3, Chile) Centromadia ((2 of 4, Oregon, Baja California) Sterculiaceae Cuniculotinus (1 of 1, Nevada) Fremontodendron (2 of 3, Arizona & Baja) Hemizonia (1 of 6 varieties, Oregon) Kyhosia (1 of 1, Oregon & Nevada) Tecophilaeaceae Lessingsia (1 of 12, Arizona) Odontostomum (1 of 1, Oregon) Malperia (1 of 1, Mexico) Pentachaeta (1 of 6, Baja California) Urticaceae Venegasia (1 of 1, Baja California) Hesperocnide (1 of 2, Hawai’i) Viguiera (1 of 1, Baja California)

Cruciferae Thysanocarpus (4 of 5, Mexico)

Cupressaceae

-3- PLANTS BY GROUP AND FAMILY

The number of endemic species and minimum ranked taxa (including subspecies and varieties) is shown F L O W E R I N G P L A N T S beside each family name. Three-letter abbreviations are shown for plants restricted to a single county or Aceraceae (0 • 2) Channel Island. Dates are shown for taxa presumed Acer glabrum var. greenei ‡ to be extinct – not collected in the last fifty years. Acer negundo var. californicum ‡ The symbol ' indicates that this plant is also known from other counties, where it is presumed extinct. I Alismataceae ((1 • 1) also treat as endemic to California a few plants that Sagittaria sanfordii have been collected in southwestern Oregon and Baja California, but not in the last fifty years and are Amaranthaceae (11-26) presumably extinct there. Atriplex canescens var. macilenta ‡ Atriplex cordulata var. cordulata The symbol ‡ beside an entry indicates that because Atriplex cordulata var. erecticaulis other subspecies or varieties occur outside Atriplex coronata var. coronata California, the species itself is not endemic here. Atriplex coronata var. notatior • RIV Atriplex flavida L Y C O P H Y T E S Atriplex fruticulosa Atriplex joaquiniana Atriplex lentiformis ssp. breweri ‡ Selaginellaceae (1 • 1) Atriplex parishii var. depressa Selaginella hansenii Atriplex parishii var. minuscula Atriplex parishii var. parishii Atriplex parishii var. persistens F E R N S Atriplex serenana var. davidsonii ‡ Atriplex spinifera Dryopteridaceae (2 • 2) Atriplex subtilis Polystichum dudleyi Atriplex vallicola • CA Polystichum imbricans ssp. curtum Chenopodium brandegeeae// Chenopodium eastwoodiae// Pteridaceae (7 • 7) Chenopodium littoreum Adiantum shastense • SHA Chenopodium luteum// Aspidotis carlotta-halliae Chenopodium sandersii// Cheilanthes cooperae Chenopodium simpsonii// Cheilanthes x fibrillosa • 1882 Chenopodium twisselmannii// Pellaea mucronata ssp. californica Chenopodium wahlii// Pentagramma pallida Salsola x ryanii Pentagramma triangularis ssp. semipallida Suaeda californica Amaryllidaceae (25 • 33) C O N I F E R S Allium abramsii Allium burlewii Cupressaceae (6 • 7) Allium cratericola Cupressus abramsiana ssp. abramsiana Allium crispum Cupressus abramsiana ssp. butanoensis • SMT Allium denticulatum Cupressus goveniana • MNT Allium diabolense Cupressus macrocarpa • MNT Allium dichlamydeum Cupressus nevadensis Allium fimbriatum var. mohavense Cupressus pygmaea Allium fimbriatum var. purdyi Sequoiadendron giganteum Allium hickmanii Allium hoffmanii Pinaceae (6 • 7) Allium howellii var. clokeyi Abies bracteata Allium howellii var. howellii Abies magnifica var. critchfieldii Allium howellii var. sanbenitense • SBT (1962) Pinus balfouriana ssp. austrina Allium hyalinum Pinus torreyana var. insularis • SRO Allium jepsonii Pinus torreyana var.torreyana • SDO Allium lacunosum var. davisiae Pseudotsuga macrocarpa Allium lacunosum var. kernensis Allium lacunosum var. lacunosum Taxaceae (1-1) Allium lacunosum var. micranthum Torreya californica Allium marvinii

-4- Allium membranaceum Berberidaceae (4 • 4) Allium monticola Mahonia amplectens Allium munzii • RIV Mahonia dictyota Allium obtusum var. conspicuum Mahonia nevinii Allium peninsulare var. franciscanum • SMT ' ‡ Mahonia pinnata ssp. insularis • SCZ ' Allium sanbornii var. congdonii ‡ Allium serra Boraginaceae (45 • 56) Allium sharsmithiae Amsinckia douglasiana Allium shevockii • KRN Amsinckia eastwoodiae Allium tribracteatum Amsinckia furcata Allium tuolumnense • TUO Amsinckia grandiflora • SJQ ' Allium yosemitense • MPA Amsinckia lunaris Amsinckia tessellata var. gloriosa Apocynaceae (3 • 6) Amsinckia vernicosa var. vernicosa Asclepias californica var. californica Cryptantha circumscissa var. hispida ‡ Asclepias californica var. greenei Cryptantha clokeyi Asclepias solanoana Cryptantha corollata Asclepias vestita Cryptantha crinita Cycladenia humilis var. humilis ‡ Cryptantha crymophila Cycladenia humilis var. venusta Cryptantha dissita Cryptantha excavata Aristolochiaceae (2 • 2) Cryptantha glomeriflora Aristolochia californica Cryptantha hispidula Asarum lemmonii Cryptantha hooveri • 1939 Cryptantha incana Asparagaceae (27 • 36) Cryptantha mariposae Bloomeria crocea var. aurea ‡ Cryptantha mohavensis Bloomeria crocea var. montana Cryptantha nemaclada Bloomeria humilis • SLO Cryptantha nubigena Brodiaea appendiculata Cryptantha rattanii Brodiaea filifolia Cryptantha roosiorum • INY Brodiaea insignis • TUL Cryptantha similis Brodiaea kinkiensis • SCM Cryptantha sparsiflora Brodiaea leptandra Cryptantha spithamea • TUO ' Brodiaea matsonii • SHA Cryptantha traskiae Brodiaea minor Hackelia amethystina Brodiaea nana Hackelia bella Brodiaea orcuttii Hackelia brevicula Brodiaea pallida Plagiobothrys canescens var. canescens Brodiaea rosea Plagiobothrys canescens var. catalinensis Brodiaea santarosae Plagiobothrys chorisianus var. chorisianus Brodiaea sierrae Plagiobothrys chorisianus var. hickmanii Brodiaea stellaris Plagiobothrys collinus var. gracilis ‡ Brodiaea terrestris ssp. kernensis Plagiobothrys collinus var. ursinus Camassia quamash ssp. linearis Plagiobothrys diffusus Chlorogalum pomeridianum var. divaricatum ‡ Plagiobothrys distantiflorus Chlorogalum pomeridianum var. minus Plagiobothrys glaber Chlorogalum purpureum var. purpureum Plagiobothrys glyptocarpus var. modestus ‡ Chlorogalum purpureum var. reductum • SLO Plagiobothrys humistratus Dichelostemma volubile Plagiobothrys hystriculus Dipterostemon capitatus ssp. lacuna-vernalis ‡ Plagiobothrys infectivus Nolina cismontana Plagiobothrys lithocaryus • 1899 Triteleia clementina • SCM Plagiobothrys mollis var. vestitus • SON (1880) ‡ Triteleia dudleyi Plagiobothrys parishii Triteleia ixioides ssp. cookii ‡ Plagiobothrys scriptus Triteleia ixioides ssp. ixioides Plagiobothrys strictus • NAP ' Triteleia ixioides ssp. unifolia Plagiobothrys tener var. subglaber • NAP ' Triteleia lilacina Plagiobothrys tener var. tener • NAP ' Triteleia lugens Plagobothrys torreyi var.difusus ‡ Triteleia montana Plagobothrys torreyi var. perplexans Triteleia piutensis • KRN Plagobothrys torreyi var. torreyi Triteleia x versicolor • MNT (1935) Plagiobothrys uncinatus Plagiobothrys undulatus

-5- Cactaceae (6 • 8) Silene campanulata ssp. campanulata ‡ Coryphanthus alversonii Silene invisa Cylindropuntia chuckwallensis Silene krantzii • SBD Cylindropuntia x fosbergii • SDO Silene marmorensis • SIS Cylindropuntia ganderi Silene nelsonii Opuntia basilaris var. brachyclada Silene occidentalis Opuntia basilaris var. treleasei ‡ Silene parishii Opunita x occidentalis Silene salmonacea • TRI Opuntia x vaseyi Silene serpentinicola • DNT Spergularia macrotheca var. leucantha ‡ Callitrichaceae (1 • 1) Spergularia macrotheca var. longistyla Callitriche longipedunculata Stellaria littoralis

Campanulaceae (24 • 33) Celastraceae (0 • 1) Campanula angustiflora Euonymus occidentalis var. parishii ‡ Campanula californica Campanula exigua Cistaceae (2 • 2) Campanula griffinii Crocanthemum greenei Campanula sharsmithiae Crocanthemum suffrutescens Campanula shetleri Campanula wilkinsiana Cleomaceae (0 • 2) Downingia bella Peritoma arborea var. globosa ‡ Downingia bicornuta var. picta ‡ Wislizenia refracta ssp. californica ‡ Downingia concolor var. brevior Downingia concolor var. concolor Compositae [Asteraceae] (235 • 332) Downingia montana Ageratina shastensis • SHA Downingia ornatissima var. eximia Agnorhiza bolanderi Downingia ornatissima var. ornatissima Agnorhiza elata Downingia pulchella Agnorhiza invenusta Githopsis diffusa ssp. filicaulis • SDO ' Agnorhiza reticulata • ELD Githopsis diffusa ssp. robusta Agoseris aparioides var. aparioides ‡ Githopsis pulchella ssp. campestris Agoseris aparioides var. eastwoodiae Githopsis pulchella ssp. pulchella var. glabra Agoseris heterophylla var. cryptopleura ‡ Githopsis pulchella ssp. pulchella var. pulchella Agoseris hirsuta Githopsis pulchella ssp. serpentinicola Ancistrocarphus keillii • SBA Githopsis tenella Anisocarpus scabridus Nemacladus calcaratus Antennaria sawyeri • TRI Nemacladus californicus Arnica dealbata Nemacladus gracilis Arnica venosa Nemacladus interior Artemisia nesiotica Nemacladus montanus Artemisia rothrockii Nemacladus ramosissimus Artemisia tridentata ssp. parishii ‡ Nemacladus secundiflorus var. robbinsii Baccharis malibuensis Nemacladus secundiflorus var. secundiflorus Baccharis plummerae ssp. glabrata Nemacladus tenuis var. albiformis Baccharis plummerae ssp. pilularis Nemacladus tenuis var. tenuis Baccharis plummerae ssp. plummerae Nemacladus twisselmannii Baccharis vanessae • SDO Balsamorhiza macrolepis Caprifoliaceae (1 • 2) Benitoa occidentalis Lonicera subspicata var. denudata Blennosperma bakeri Lonicera subspicata var. subspicata Blennosperma nanum var. nanum Blennosperma nanum var. robustum Caryophyllaceae (18 • 23) Blepharizonia laxa Eremogone congesta var. suffrutescens ‡ Blepharizonia plumosa Eremogone macradenia var. arcuifolia ‡ Calycadenia hooveri Eremogone ursina • SBD ' Calycadenia micrantha Eremogone cliftonii Calycadenia mollis Minuartia decumbens Calycadenia oppositifolia Minuartia rosei Calycadenia pauciflora Minuartia stolonifera • SIS Calycadenia spicata Paronychia ahartii Calycadenia villosa Pseudostellaria sierrae Carlquistia muirii Silene aperta Centromadia parryi ssp. congdonii Silene bridgesii [OR-1887] Centromadia parryi ssp. parryi

-6- Centromadia parryi ssp. rudis Erigeron breweri var. covillei Chaenactis carphoclinia var. peirsonii ‡ Erigeron breweri var. jacinteus Chaenactis glabruiscula var. heterocarpha Erigeron calvus • INY (1891) Chaenactis glabruiscula var. lanosa Erigeron elmeri Chaenactis glabruiscula var. megacephala Erigeron foliosus var. franciscensis ‡ Chaenactis santolinoides Erigeron foliosus var. hartwegii Chaenactis suffrutescens Erigeron greenei Cirsium andrewsii Erigeron inornatus var. calidipetris ‡ Cirsium crassicaule Erigeron inornatus var. keilii Cirsium douglasii var. douglasii ‡ Erigeron kalmathensis Cirsium fontinale var. campylon Erigeron lassenianus var. deficiens Cirsium fontinale var. fontinale • SMT ' Erigeron lassenianus var. lassenianus Cirsium fontinale var. obispoense • SLO Erigeron maniopotmanicus Cirsium hydrophilum var. hydrophilum • SOL Erigeron mariposanus • MPA (1900) Cirsium hydrophilum var. vaseyi • MRN ' Erigeron mendocinensis Cirsium occidentale var. californicum ‡ Erigeron miser Cirsium occidentale var. compactum Erigeron multiceps Cirsium occidentale var. coulteri Erigeron parishii Cirsium occidentale var. lucianum • SLO Erigeron petrophilus var. sierrensis Cirsium occidentale var. occidentale Erigeron petrophilus var. viscidulus Cirsium praeteriens • SCL (1901) Erigeron reductus var. angustatus Cirsium quercetorum Erigeron reductus var. reductus Cirsium rhothophilum Erigeron robustior Cirsium scariosum var. citrinum ‡ Erigeron sanctarum Cirsium scariosum var. loncholepis Erigeron serpentinus • SON Constancea nevinii Erigeron supplex Coreopsis bigelovii Eriophyllum ambiguum var. ambiguum ‡ Coreopsis calliopsidea Eriophyllum confertiflorum var. tanacetiflorum Coreopsis douglasii Eriophyllum congdonii • MPA ' Coreopsis hamiltonii Eriophyllum jepsonii Coreopsis stillmanii Eriophyllum lanatum var. arachnoideum ‡ Deinandra arida • KRN Eriophyllum lanatum var. croceum Deinandra bacigalupii Eriophyllum lanatum var. hallii Deinandra clementina Eriophyllum lanatum var. obovatum Deinandra corymbosa Eriophyllum latilobum Deinandra halliana Eriophyllum mohavense Deinandra increscens ssp. increscens Eriophyllum multicaule Deinandra increscens ssp. villosa • SBA Eriophyllum nubigenum • MPA Deinandra lobbii Grindelia hallii • SDO Deinandra minthornii Grindelia stricta var. angustifolia ‡ Deinandra mohavensis Grindelia stricta var. platyphylla Deinandra pallida Harmonia doris-nilesiae Deinandra pentactis Harmonia guggolziorium • MEN Dieteria canescens var. ziegleri • RIV ‡ Harmonia hallii Eastwoodia elegans Harmonia nutans Enceliopsis covillei • INY Harmonia stebbinsii Ericameria cuneata var. cuneata Hazardia detonsa Ericameria cuneata var. macrocephala • SDO ‡ Hazardia squarrosa var. obtusa Ericameria ericoides Hazardia squarrosa var. squarrosa Ericameria fasciculata • MNT ' Hazardia stenolepis Ericameria gilmanii • INY ' Hazardia whitneyi var. whitneyi ‡ Ericameria nauseosa var. bernardina ‡ Helianthella californica var. californica ‡ Ericameria nauseosa var. ceruminosa Helianthella californica var. shastensis Ericameria ophitidis Helianthella castanea Ericameria palmeri var. pachylepis Helianthus exilis Ericameria parishii var. parishii Helianthus inexpectatus • LAX Ericameria parryi var. imula • SBD Helianthus nuttallii ssp. parishii • LAX ' ‡ Ericameria parryi var. latior ‡ Helianthus winteri Ericameria parryi var. vulcanica Hemizonia congesta ssp. calyculata ‡ Erigeron aequifolius Hemizonia congesta ssp. congesta Erigeron barbellulatus Hemizonia congesta ssp. lutescens Erigeron biolettii Hemizonia congesta ssp. luzulaefolia Erigeron blochmaniae Hemizonia congesta ssp. tracyi Erigeron breweri var. bisanctus ‡ Hesperevax acaulis var. ambusticola ‡

-7- Hesperevax caulescens Lessingia glandulifera var. tomentosa Hesperevax sparsiflora var. sparsiflora ‡ Lessingia hololeuca Heterotheca monarchensis • FRE Lessingia leptoclada Heterotheca oregona var. compacta ‡ Lessingia micradenia var. glabrata Heterotheca psammophila Lessingia micradenia var. micradenia Heterotheca scaberrima Lessingia nana Heterotheca sessiliflora ssp. bolanderi Lessingia nemaclada Heterotheca sessiliflora ssp. echioides Lessingsia pectinata var. pectinata Heterotheca sessiliflora var. fastigiata Lessingsia pectinata var. tenuipes Heterotheca sessiliflora var. sanjacintensis Lessingia ramulosa Heterotheca shevocki • KRN Lessingia tenuis Hieracium argutum Lessingia virgata Holocarpha heermannii Lorandersonia peirsonii Holocarpha macradenia Madia anomala Holocarpha obconica Madia x citrigracilis Holocarpha virgata ssp. elongata Madia radiata Holocarpha virgata ssp. virgata Madia subspicata Holozonia filipes Malacothrix foliosa ssp. crispifolia • ANA Hulsea brevifolia Malacothrix foliosa ssp. foliosa • SCM Hulsea californica • SDO Malacothrix foliosa ssp. philbrickii • SBR Hulsea vestita ssp. callicarpha ‡ Malacothrix foliosa ssp. polycephala • SNI Hulsea vestita ssp. gabrielensis Malacothrix incana Hulsea vestita ssp. parryi Malacothrix indecora Hulsea vestita ssp. pygmaea Malacothrix junakii • ANA Hulsea vestita ssp. vestita Malacothrix phaeocarpa Isocoma acradenia var. bracteosa Malacothrix saxatilis var. arachnoidea Isocoma arguta • SOL ' Malacothrix saxatilis var. commutata Isocoma menziesii var. diabolica Malacothrix saxatilis var. implicata Jensia rammii Malacothrix saxatilis var. saxatilis Jensia yosemitana Malacothrix saxatilis var. tenuifolia Lagophylla diabolensis Malacothrix squalida Lagophylla dichotoma Micropus amphibolus Lagophylla glandulosa Micropus californicus var. subvestitus ‡ Lagophylla minor Microseris campestris Lasthenia burkei Microseris douglasii ssp. tenella ‡ Lasthenia californica ssp. bakeri ‡ Microseris paludosa Lasthenia californica ssp. macrantha Microseris sylvatica Lasthenia chrysantha Monolopia congdonii Lasthenia conjugens Monolopia gracilens Lasthenia debilis Monolopia lanceolata Lasthenia ferrisiae Monolopia major Lasthenia fremontii Monolopia stricta Lasthenia glabrata ssp. coulteri Munzothamnus blairii • SCM Lasthenia glabrata ssp. glabrata Oreostemma elatum Lasthenia leptalea Oreostemma peirsonii Lasthenia microglossa Orochaenactis thysanocarpha Lasthenia minor Packera bernardina Lasthenia platycarpha Packera breweri Layia carnosa Packera clevelandii Layia chrysanthemoides Packera eurycephala var. lewisrosei ‡ Layia discoidea • SBT Packera ganderi • SDO Layia fremontii Packera greenei Layia gaillardioides Packera ionophylla Layia heterotricha Packera layneae Layia hieracioides Pentachaeta alsinoides Layia jonesii • SLO Pentachaeta aurea ssp. allenii • ORA Layia leucopappa Pentachaeta bellidiflora • SMT ' Layia munzii Pentachaeta exilis ssp. aeolica Layia pentachaeta ssp. albida Pentachaeta exilis ssp. exilis Layia pentachaeta ssp. pentachaeta Pentachaeta fragilis Layia septentrionalis Pentachaeta lyonii Lessingia arachnoidea Perityle inyoensis • INY Lessingia germanorum Perityle megalocephala var. oligophylla ‡ Lessingia glandulifera var. peirsonii ‡ Perityle villosa • INY

-8- Phalacroseris bolanderi Cuscuta jepsonii Pseudobahia bahiifolia Cuscuta pacifica var. papillata Pseudobahia heermannii Cuscuta suksdorfii var. subpedicellata ‡ Pseudobahia peirsonii Pseudognaphalium ramosissimum Cornaceae (1 • 1) Psilocarphus brevissimus var. multiflorus ‡ Cornus sessilis Pyrrocoma lucida Pyrrocoma racemosa var. pinetorum ‡ Crassulaceae (31-47) 000 Pyrrocoma uniflora var. gossypina • SBD ‡ Dudleya abramsii ssp. affinis • SBD Raillardella pringlei Dudleya abramsii ssp. bettinae • SLO Rudbeckia californica Dudleya abramsii ssp. murina • SLO Rudbeckia klamathensis Dudleya abramsii ssp. setchellii Senecio astephanus Dudleya blochmaniae ssp. insularis • SRO Senecio blochmaniae Dudleya brevifolia • SDO Senecio clarkianus Dudleya caespitosa Sericocarpus oregonensis var. californicus ‡ Dudleya calcicola ssp. calcicola Solidago confinis Dudleya candelabrum Solidago guiradonis Dudleya cymosa ssp. agourensis • LAX Solidago spathulata Dudleya cymosa ssp. costatifolia • TUL Stebbinsoseris decipiens Dudleya cymosa ssp. crebrifolia • LAX Stephanomeria cichoriacea Dudleya cymosa ssp. cymosa Stephanomeria exigua ssp. carotifera ‡ Dudleya cymosa ssp. marcescens Stephanomeria exigua ssp. macrocarpa Dudleya cymosa ssp. ovatifolia Stylocline citroleum • KRN Dudleya cymosa ssp. paniculata Stylocline masonii Dudleya cymosa ssp. pumila Symphyotrichum defoliatum Dudleya densiflora • LAX Symphyotrichum greatae • LAX ' Dudleya gnoma • SRO Symphyotrichum lentum Dudleya greenei Syntrichopappus lemmonii Dudleya multicaulis Taraxacum californicum • SBD ' Dudleya nesiotica • SCZ Tracyina rostrata Dudleya palmeri Wyethia glabra Dudleya parva • VEN ' Wyethia helenioides Dudleya saxosa ssp. aloides Wyethia longicaulis Dudleya saxosa ssp. saxosa ‡ Xylorhiza cognata Dudleya stolonifera • ORA Dudleya traskiae • SBA Convolvulaceae (12 • 30) Dudleya verityi • VEN Calystegia atriplicifolia ssp. buttensis ‡ Dudleya virens ssp. hassei • SCT ' Calystegia collina ssp. apicum Dudleya virens ssp. insularis Calystegia collina ssp. collina Dudleya virens ssp. virens Calystegia collina ssp. oxyphylla Dudleya viscida Calystegia collina ssp. tridactylosa Sedella leiocarpa • LAK (1943) Calystegia collina ssp. venusta Sedella pentandra Calystegia felix • SBD ' Sedella pumila • (1835 Oregon) Calystegia macrostegia ssp. amplissima Sedum albomarginatum Calystegia macrostegia ssp. arida Sedum citrinum • DNT Calystegia macrostegia ssp. cyclostegia Sedum kiersteadiae Calystegia macrostegia ssp. intermedia Sedum laxum ssp. eastwoodiae • MEN Calystegia malacophylla ssp. malacophylla Sedum laxum ssp. flavidum Calystegia malacophylla ssp. pedicellata Sedum laxum ssp. latifolium Calystegia occidentalis ssp. fulcrata ‡ Sedum marmorense • SIS Calystegia peirsonii Sedum obtusatum ssp. boreale ‡ Calystegia purpurata ssp. purpurata Sedum paradisum ssp. paradisum Calystegia purpurata ssp. saxicola Sedum paradisum ssp. subroseum Calystegia sepium ssp. binghamiae • SBD (1965) ‡ Sedum patens • DNT Calystegia stebbinsii Sdeum radiatum ssp. radiatum Calystegia subacaulis ssp. episcopalis Sedum rubiginosum • TEH Calystegia subacaulis ssp. subacaulis Sedum sanhedrinum Calystegia vanzuukiae Cuscuta brachycalyx var. apodanthera ‡ Cruciferae [Brassicaceae] (73 • 88) Cuscuta brachycalyx var. brachycalyx Arabis blepharophylla Cuscuta californica var. californica ‡ Boechera arcuata Cuscuta californica var. papillosa Boechera constancei Cuscuta howelliana Boechera evadens • TUL

-9- Boechera hoffmannii • SBA (1950) Streptanthus glandulosus ssp. sonomensis Boechera johnstonii Streptanthus gracilis Boechera parishii • SBD ' Streptanthus hesperidis Boechera peirsonii • SBD Streptanthus hispidus • CCA Boechera pygmaea Streptanthus insignis ssp. insignis Boechera rollei • SIS Streptanthus insignis ssp. lyonii Boechera rubicundula • SCL (1908) Streptanthus longisiliquus Boechera serpenticola Streptanthus morrisonii Boechera shevockii • TUL Streptanthus oblanceolatus • TRI Boechera tularensis Streptanthus polygaloides Boechera ultra-alsa • LAK Streptanthus tortuosus ssp. truei • NEV ‡ Boechera yorkii • INY Streptanthus vernalis • LAK Cardamine pachystigma Streptanthus vimineus Caulanthus amplexicaulis Thelypodium stenopetalum • SBD ' Caulanthus anceps Thysanocarpus conchuliferus • SCZ Caulanthus californicus Thysanocarpus desertorum Caulanthus coulteri Thysanocarpus laciniatus var. rigidus Caulanthus flavescens Tropidocarpum californicum Caulanthus inflatus Tropidocarpum capparideum Caulanthus lemmonii Tropidocarpum gracile Caulanthus simulans Draba carnosula Cucurbitaceae (2 • 2) Draba cruciata Marah horrida Draba incrassata • MNO Marah watsonii Draba lemmonii Draba longisquamosa Cyperaceae (19 • 19) Draba monoensis Carex amplectens Draba pterosperma • SIS Carex congdonii Draba saxosa • RIV ' Carex cryptosperma Draba sharsmithii Carex cyrtostachya Draba sierrae Carex globosa Erysimum ammophilum Carex gracilior Erysimum franciscanum Carex hirtissima Erysimum insulare Carex lemmonii Erysimum menziesii Carex obispoensis Erysimum suffrutescens Carex orestera Erysimum teretifolium Carex salinaeformis • MEN ' Hesperidanthus jaegeri • INY (1954) Carex sartwelliana Lepidium jaredii Carex schottii Lepidium oxycarpum Carex tompkinsii Noccaea fendleri ssp. californica ‡ Carex xerophila Physaria kingii ssp. bernardina • SBD ‡ Eleocharis torticulmis • PLU Sibara filifolia Rhynchospora californica Sibaropsis hammittii Scirpus diffusus Streptanthus anomalus • MRN Trichophorum clementis Streptanthus barbatus Streptanthus barbiger Ericaceae (62 • 84) Streptanthus batrachopus Arctostaphylos andersonii Streptanthus brachiatus Arctostaphylos auriculata Streptanthus breweri Arctostaphylos bakeri ssp. bakeri • SON ' Streptanthus callistus • SCL Arctostaphylos bakeri ssp. sublaevis • SON Streptanthus cordatus var. piutensis • KRN ‡ Arctostaphylos canescens ssp. sonomensis Streptanthus diversifolius Arctostaphylos catalinae • SCT Streptanthus drepanoides Arctostaphylos confertiflora • SRO Streptanthus farnsworthianus Arctostaphylos crustacea ssp. crinita Streptanthus fenestratus Arctostaphylos crustacea ssp. crustacea Streptanthus glandulosus ssp. albidus • SCL ' ‡ Arctostaphylos crustacea spp. eastwoodiana • SBA Streptanthus glandulosus ssp. arkii Arctostaphylos crustacea ssp. insulicola Streptanthus glandulosus ssp. glandulosus Arctostaphylos crustacea ssp. rosei Streptanthus glandulosus ssp. hoffmanii • SON Arctostaphylos crustacea ssp. subcordata Streptanthus glandulosus ssp. niger Arctostaphylos cruzensis Streptanthus glandulosus ssp. pulchellus • MRN Arctostaphylos densiflora Streptanthus glandulosus ssp. raichei Arctostaphylos edmundsii Streptanthus glandulosus ssp. secundus • MRN Arctostaphylos franciscana • SFO (1942)

-10- Arctostaphylos gabilanensis Arctostaphylos tomentosa ssp. hebeclada Arctostaphylos glandulosa ssp. gabrielensis ‡ Arctostaphylos tomentosa ssp. tomentosa Arctostaphylos glandulosa ssp. howellii Arctostaphylos virgata • MRN Arctostaphylos glandulosa ssp. mollis Arctostaphylos viridissima Arctostaphylos glutinosa Arctostaphylos viscida ssp. mariposa ‡ Arctostaphylos x helleri Cassiope mertensiana ssp. cilliolata Arctostaphylos hookeri ssp. hearstiorum • SLO Comarostaphylis diversifolia ssp. planifolia Arctostaphylos hookeri ssp. hookeri Vaccinium shastense ssp. nevadense Arctostaphylos hooveri Vaccinium shastense ssp. shastense • SHA Arctostaphylos imbricata Arctostaphylos insularis • SCZ Euphorbiaceae (4 • 5) Arctostaphylos x jepsonii Euphorbia hooveri Arctostaphylos klamathensis Euphorbia jaegeri Arctostaphylos x laxiflora • (1940) Euphorbia ocellata ssp. rattanii ‡ Arctostaphylos luciana • SLO Euphorbia vallis-mortae Arctostaphylos malloryi Tetracoccus ilicifolius • INY Arctostaphylos manzanita ssp. elegans Arctostaphylos manzanita ssp. glaucescens Fagaceae (17 • 20) Arctostaphylos manzanita ssp. laevigata Quercus x alvordiana Arctostaphylos manzanita ssp. manzanita Quercus chrysolepis var. nana Arctostaphylos manzanita ssp. roofii Quercus douglasii Arctostaphylos manzanita ssp. wieslanderi Quercus durata var. durata Arctostaphylos mewukka ssp. mewukka Quercus durata var. gabrielensis Arctostaphylos mewukka ssp. truei Quercus x eplingii • SON ' Arctostaphylos montana ssp. montana • MRN Quercus x ganderi Arctostaphylos montana ssp. ravenii • SFO Quercus x grandidentata Arctostaphylos montaraensis • SMT Quercus x howellii • SON ' Arctostaphylos montereyensis Quercus john-tuckeri Arctostaphylos morroensis • SLO ' Quercus x jolonensis Arctostaphylos myrtifolia Quercus lobata Arctostaphylos nevadensis ssp. knightii Quercus x macdonaldii Arctostaphylos nisseniana Quercus x munzii Arctostaphylos nortensis • DNT Quercus pacifica Arctostaphylos nummularia ssp. mendocinoensis • MEN Quercus parvula var. parvula Arctostaphylos nummularia ssp. nummularia Quercus parvula var. shrevei Arctostaphylos obispoensis Quercus parvula var. tamalpaisensis Arctostaphylos ohloneana Quercus x subconvexa Arctostaphylos osoensis • SLO Quercus x townei Arctostaphylos otayensis Arctostaphylos pacifica • SMT Gentianaceae (4 • 4) Arctostaphylos pajaroensis Frasera neglecta Arctostaphylos pallida Frasera tubulosa Arctostaphylos parryana ssp. desertica Zeltnera davyi Arctostaphylos parryana ssp. parryana Zeltnera tricanthum Arctostaphylos parryana ssp. tumescens Arctostaphylos patula ssp. gankinii Geraniaceae (1 • 1) Arctostaphylos pechoensis Geranium californicum Arctostaphylos pilosula Arctostaphylos pringlei ssp. drupacea Gramineae [Poaceae] (49 • 53) Arctostaphylos pumila Agrostis blasdalei Arctostaphylos purissima ssp. globosa • SBA Agrostis hooveri Arctostaphylos purissima ssp. purissima • SBA ' Agrostis lacuna-vernalis • MNT Arctostaphylos rainbowensis Alopecurus aequalis var. sonomensis • MRN ' ‡ Arctostaphylos refugioensis Bromus hallii Arctostaphylos regismontana Bromus pseudolaevipes Arctostaphylos repens Calamagrostis bolanderi Arctostaphylos rudis Calamagrostis foliosa Arctostaphylos sensitiva Calamagrostis muiriana Arctostaphylos silvicola • SCR ' Calamagrostis ophitidis Arctostaphylos stanfordiana ssp. decumbens Cinna bolanderi Arctostaphylos stanfordiana ssp. raichei X Elyhordeum californicum Arctostaphylos stanfordiana ssp. stanfordiana Elymus californicus Arctostaphylos tomentosa ssp. bracteosa Elymus pacificus Arctostaphylos tomentosa ssp. daciticola Elymus stebbinsii

-11- Festuca brachyphylla ssp. breviculmis Howellanthus dalesianus Festuca californica ssp. hitchcockiana • SLO ‡ Nemophila hoplandensis • MEN Festuca californica ssp. parishii Nemophila menziesii var. menziesii ‡ Hordeum brachyanthum ssp. californicum Nemophila parviflora var. quercifolia ‡ Melica californica Nemophila pulchella var. fremontii Melica geyeri var. aristulata Nemophila pulchella var. gracilis Melica stricta var. albicaulis Nemophila pulchella var. pulchella Melica torreyana Phacelia amabilis • SDO (1942) ' Muhlenbergia californica Phacelia breweri Muhlenbergia jonesii Phacelia californica Neostapfia colusana Phacelia campanularia ssp. campanularia ‡ Orcuttia inaequalis Phacelia campanularia ssp. vasiformis Orcuttia pilosa Phacelia cicutaria var. cicutaria ‡ Orcuttia tenuis Phacelia ciliata var. opaca Orcuttia viscida • SAC Phacelia cinerea • SNI (1901) Panicum acuminatum var. thermale Phacelia congdonii Phalaris californica Phacelia cookei • SIS Phalaris lemmonii Phacelia davidsonii Pleuropogon californicus var. californicus Phacelia divaricata Pleuropogon californicus var. davyi Phacelia douglasii var. douglasii Pleuropogon hooverianus Phacelia douglasii var. petrophila Poa atropurpurea Phacelia eisenii var. brandegeeana Poa diaboli • SLO Phacelia eisenii var. eisenii Poa douglasii Phacelia exilis Poa keckii Phacelia greenei • SIS ' Poa kelloggii Phacelia grisea Poa napensis • NAP Phacelia hubbyi Poa sierrae Phacelia humilis var. dudleyi ‡ Poa stebbinsii Phacelia imbricata ssp. imbricata Poa tenerrima Phacelia insularis var. continentis Puccinellia howellii • SHA Phacelia insularis var. insularis Stipa kingii Phacelia inyoensis Stipa x latiglumis Phacelia keckii • SDO ' Stipa lemmonii var. pubescens Phacelia longipes Stipa stillmanii Phacelia lyonii Swallenia alexandrae • INY Phacelia marcescens Tuctoria greenei Phacelia mohavensis Tuctoria mucronata Phacelia nashiana Phacelia nemoralis ssp. nemoralis ‡ Grossulariaceae (10 • 14) Phacelia novenmillensis Ribes amarum Phacelia orogenes Ribes aureum var. gracillimum Phacelia perityloides var. perityloides • INY Ribes californicum var. californicum Phacelia phacelioides Ribes californicum var. hesperium Phacelia platyloba Ribes canthariforme Phacelia pringlei Ribes divaricatum var. parishii • 1963 ‡ Phacelia purpusii Ribes malvaceum var. malvaceum Phacelia quickii Ribes menziesii var. ixoderme ‡ Phacelia racemosa Ribes roezlii var. amictum ‡ Phacelia stebbinsii Ribes roezlii var. roezlii Phacelia suaveolens Ribes sericeum Phacelia vallicola Ribes thacherianum • SCZ Phacelia viscida var. albiflora Ribes tularense • TUL Phacelia vallis-mortae var. heliophila ‡ Ribes victoris Iridaceae (8 • 13) Guttiferae (Hypericaceae) (1 • 1) Iris fernaldii Hypericum concinnum Iris hartwegii ssp. australis • SBD ' Iris hartwegii ssp. columbiana Hydrangeaceae (1 • 1) Iris hartwegii ssp. hartwegii Carpenteria californica Iris hartwegii ssp. pinetorum Iris longipetala Hydrophyllaceae (42 • 55) Iris macrosiphon Draperia systyla Iris munzii Emmenanthe penduliflora var. rosea Iris purdyi

-12- Iris tenax ssp. klamathensis ‡ Monardella undulata ssp. undulata Iris tenuissima ssp. purdyiformis Monardella venosa Iris tenuissima ssp. tenuissima Monardella villosa ssp. franciscana ‡ Sisyrinchium elmeri Monardella villosa ssp. obispoensis Monardella villosa ssp. subserrata Juglandaceae (2 • 2) Monardella villosa ssp. villosa Juglans californica Monardella viminea Juglans hindsii Monardella viridis Pogogyne abramsii • SDO Juncaceae (2 • 2) Pogogyne clareana • MNT Juncus digitatus Pogogyne douglasii Juncus duranii Pogogyne serpylloides Juncus leiospermus var. ahartii Pycnanthemum californicum Juncus leiospermus var. leiospermus Salvia funerea Juncus luciensis Salvia greatae Juncus macrandrus Salvia x palmeri • SDO ' Juncus phaeocephalus var. paniculatus ‡ Salvia sonomensis Juncus textilis Salvia spathacea Juncus triformis Scutellaria bolanderi ssp. austromontana Scutellaria bolanderi ssp. bolanderi Scutellaria californica Labiatae [Lamiaceae] (52 • 75) Scutellaria siphocamyploides Acanthomintha duttonii • SMT Stachys bergii Acanthomintha lanceolata Stachys bullata Acanthomintha obovata ssp. cordata Stachys chamissonis var. chamissonis ‡ Acanthomintha obovata ssp. obovata Stachys pycnantha Agastache parvifolia Stachys stricta Clinopodium mimuloides Trichostema austromontanum ssp. compactum • RIV ‡ Lepechinia calycina Trichostema laxum Lepechinia fragrans Trichostema ovatum Lepechinia rossii Trichostema rubrisepalum Monardella australis ssp. australis Trichostema ruygtii • NAP Monardella australis ssp. cinerea Monardella australis ssp. gabrielensis • LAX Lauraceae (0 • 1) Monardella australis ssp. jokersti • SBD Umbellularia californica var. fresnensis • FRE ‡ Monardella australis ssp. occidentalis • VEN Monardella beneolens Leguminosae [Fabaceae] (123 • 216) 000 Monardella boydi • SBD Amorpha californica var. napensis ‡ Monardella breweri ssp. breweri ‡ Astragalus agnicidus Monardella breweri ssp. glandulifera Astragalus albens • SBD Monardella candicans Astragalus anxius • LAS Monardella douglasii Astragalus asymmetricus Monardella eremicola Astragalus atratus var. mensanus • INY ‡ Monardella exilis Astragalus austiniae Monardella follettii Astragalus bernardinus Monardella hypoleuca ssp. hypoleuca Astragalus bicristatus Monardella hypoleuca ssp. intermedia Astragalus brauntonii Monardella hypoleuca ssp. lanata Astragalus breweri Monardella leucocephala • (1941) Astragalus cimae var. sufflatus • INY ‡ Monardella linoides ssp. anemonoides ‡ Astragalus clarianus • NAP ' Monardella linoides ssp. erecta Astragalus clevelandii Monardella linoides ssp. oblonga Astragalus congdonii Monardella macrantha ssp. hallii Astragalus curtipes Monardella palmeri Astragalus deanei • SDO Monardella pringlei • (1921) Astragalus didymocarpus var. dispersus ‡ Monardella purpurea ssp. neglecta ‡ Astragalus didymocarpus var. milesianus Monardella robisonii Astragalus douglasii var. douglasii Monardella saxicola Astragalus douglasii var. parishii Monardella sinuata ssp. gerryi • VEN Astragalus ertterae • KRN Monardella sinuata ssp. nigrescens Astragalus inversus Monardella sinuata ssp. sinuata Astragalus inyoensis Monardella stebbinsii Astragalus jaegerianus • SBD Monardella undulata ssp. arguelloensis • SBA Astragalus kentrophyta var. danaus ‡ Monardella undulata ssp. crispa Astragalus lentiformis • PLU '

-13- Astragalus lentiginosus var. albifolius ‡ Lotus dendroideus var. veatchii Astragalus lentiginosus var. antonius Lotus grandiflorus var. grandiflorus Astragalus lentiginosus var. coachellae • RIV ' Lotus grandiflorus var. macranthus Astragalus lentiginosus var. idriensis Lotus heermannii var. heermannii Astragalus lentiginosus var. ineptus Lotus heermannii var. orbicularis Astragalus lentiginosus var. micans • INY Lotus incanus Astragalus lentiginosus var. nigricalycis Lotus junceus var. biolettii Astragalus lentiginosus var. piscinensis Lotus junceus var. junceus Astragalus lentiginosus var. semotus Lotus nevadensis var. davidsonii ‡ Astragalus lentiginosus var. sierrae • SBD ' Lotus oblongifolius var. cupreus ‡ Astragalus lentiginosus var. variabilis Lotus procumbens var. jepsonii Astragalus leucolobus Lotus procumbens var. procumbens Astragalus macrodon Lotus rubriflorus Astragalus miguelensis Lotus stipularis var. ottleyi ‡ Astragalus mohavensis var. mojavensis ‡ Lotus stipularis var. stipularis Astragalus monoensis • MNO ' Lotus yollabolliensis Astragalus nevinii • SCM ' Lupinus adsurgens Astragalus nutans • SBD Lupinus albifrons var. abramsii ‡ Astragalus nuttallii var. nuttallii Lupinus albifrons var. douglasii Astragalus nuttallii var. virgatus Lupinus angustiflorus Astragalus oocarpus Lupinus antoninus Astragalus oophorus var. oophorus ‡ Lupinus apertus Astragalus oxyphysus Lupinus benthamii Astragalus pachypus var. jaegeri Lupinus brevior • RIV ' Astragalus pachypus var. pachypus Lupinus breweri var. grandiflorus ‡ Astragalus panamintensis • INY Lupinus cervinus Astragalus pauperculus Lupinus chamissonis Astragalus purshii var. lectulus Lupinus citrinus var. citrinus Astragalus pycnostachyus var. lanosissimus • VEN ' Lupinus citrinus var. deflexus • MPA Astragalus pycnostachyus var. pycnostachyus Lupinus congdonii Astragalus rattanii var. jepsonianus Lupinus constancei Astragalus rattanii var. rattanii Lupinus covillei Astragalus ravenii Lupinus croceus var. croceus Astragalus sepultipes • INY Lupinus croceus var. pilosellus Astragalus shevockii • TUL Lupinus culbertsonii ssp. culbertsonii ‡ Astragalus subvestitus Lupinus culbertsonii ssp. hypolasius Astragalus tener var. ferrisiae Lupinus dalesiae Astragalus tener var. tener Lupinus densiflorus var. aureus ‡ Astragalus tener var. titi • MNT ' Lupinus densiflorus var. austrocollium Astragalus traskiae Lupinus densiflorus var. glareosus Astragalus tricarinatus Lupinus densiflorus var. lacteus Astragalus trichopodus var. phoxus Lupinus densiflorus var. palustris Astragalus trichopodus var. trichopodus Lupinus duranii • MNO Astragalus webberi • PLU Lupinus elatus Hoita strobilina • SCL ' Lupinus elmeri Lathyrus biflorus • HUM Lupinus excubitus var. austromontanus ‡ Lathyrus glandulosus • HUM ' Lupinus excubitus var. excubitus Lathyrus jepsonii ssp. californicus Lupinus excubitus var. hallii Lathyrus jepsonii ssp. jepsonii Lupinus excubitus var. johnstonii Lathyrus lanszwertii var. tracyi ‡ Lupinus excubitus var. medius Lathyrus vestitus var. alefeldii ‡ Lupinus eximius Lathyrus vestitus var. ochropetalus Lupinus formosus var. formosus ‡ Lathyrus vestitus var. vestitus Lupinus formosus var. robustus Lotus argophyllus var. adsurgens Lupinus fulcratus Lotus argophyllus var. argenteus Lupinus gracilentus Lotus argophyllus var. argophyllus Lupinus grayi Lotus argophyllus var. fremontii Lupinus horizontalis var. horizontalis Lotus argophyllus var. niveus • SCZ Lupinus horizontalis var. platypetalus Lotus argyraeus var. multicaulis • SBD ‡ Lupinus hyacinthinus Lotus argyraeus var. notitius Lupinus lapidicola Lotus benthamii Lupinus latifolius var. barbatus • MOD ‡ Lotus cystoides Lupinus latifolius var. dudleyi Lotus dendroideus var. dendroideus Lupinus latifolius var. parishii Lotus dendroideus var. traskiae • SCM ' Lupinus latifolius var. viridifolius

-14- Lupinus lepidus var. culbertsonii ‡ Liliaceae (53 • 63) Lupinus lepidus var. ramosus Calochortus albus Lupinus longifolius Calochortus amoenus Lupinus ludovicianus • SLO Calochortus argillosus Lupinus magnificus var. glarecola • INY Calochortus catalinae Lupinus magnificus var. hesperius • INY (1942) Calochortus clavatus var. avius Lupinus magnificus var. magnificus • INY Calochortus clavatus var. clavatus Lupinus microcarpus var. densiflorus Calochortus clavatus var. gracilis • LAX Lupinus microcarpus var. horizontalis Calochortus clavatus var. pallidus Lupinus milo-bakeri • MEN Calochortus clavatus var. recurvifolius • SLO Lupinus nanus ssp. latifolius Calochortus coeruleus Lupinus nanu Calochortus excavatus Lupinus nipomensis • SLO Calochortus fimbriatus Lupinus obtusilobus Calochortus invenustus Lupinus pachylobus Calochortus luteus • Oregon (1939) Lupinus padre-crowleyi Calochortus minimus Lupinus peirsonii • LAX ' Calochortus monanthus • SIS (1876) Lupinus pratensis var. eriostachyus • INY Calochortus obispoensis • SLO Lupinus pratensis var. pratensis Calochortus palmeri var. munzii Lupinus punto-reyesensis • MRN (1947) Calochortus palmeri var. palmeri Lupinus purpurascens • SHA (1905) Calochortus plummerae Lupinus ruber Calochortus pulchellus Lupinus sericatus Calochortus raichei • SON Lupinus sparsiflorus ssp. inopinatus • RIV ' ‡ Calochortus rustvoldii Lupinus sparsiflorus ssp. pondii Calochortus simulans Lupinus sparsiflorus ssp. sparsiflorus Calochortus superbus Lupinus spectabilis Calochortus syntrophus Lupinus stiversii Calochortus tiburonensis • MRN Lupinus sublanatus • MNO (1936) Calochortus umbellatus Lupinus subvexus var. albilanatus ‡ Calochortus venustus Lupinus subvexus var. phoeniceus • (1933) Calochortus vestae Lupinus subvexus var. subvexus Calochortus weedii var. intermedius Lupinus tidestromii Calochortus westonii Lupinus versicolor Erythronium californicum Pickeringia montana var. montana Erythronium citrinum var. roderickii Psorothamnus arborescens var. simplifolius ‡ Erythronium helenae Rupertia hallii Erythronium multiscapoideum Thermopsis californica var. argentata Erythronium pluriflorum • MAD Thermopsis californica var. californica Erythronium purpurascens Thermopsis californica var. semota • SDO ' Erythronium pusaterii • TUL Thermopsis macrophylla • SBA Erythronium shastense • SHA Thermopsis robusta Erythronium taylorii • TUO Trifolium albopurpureum var. columbinum Erythronium tuolumnense • TUO Trifolium amoenum Fritillaria agrestis Trifolium barbigerum var. andrewsii ‡ Fritillaria biflora var. biflora Trifolium bolanderi Fritillaria biflora var. ineziana • SMT Trifolium buckwestiorum Fritillaria brandegeei Trifolium depauperatum var. amplectans ‡ Fritillaria falcata Trifolium depauperatum var. diversifolium Fritillaria liliacea Trifolium depauperatum var. stenophyllum Fritillaria micrantha Trifolium depauperatum var. truncatum Fritillaria ojaiensis Trifolium grayi Fritillaria pinetorum Trifolium hydrophilum Fritillaria pluriflora Trifolium jokerstii • BUT Fritillaria striata Trifolium kingii var. dedeckerae ‡ Fritillaria viridea Trifolium longipes ssp. atrorubens ‡ Lilium humboldtii ssp. humboldtii Trifolium longipes ssp. shastense Lilium humboldtii ssp. ocellatum Trifolium monanthum ssp. tenerum ‡ Lilium kelleyanum Trifolium olivaceum Lilium maritimum Trifolium piorkowskii • SHA Lilium pardalinum ssp. pitkinense • SON (1880) ‡ Trifolium polyodon Lilium pardalinum ssp. shastense Trifolium trichocalyx Lilium parvum Lilium rubescens Lilium washingtonianum var. washingtonianum ‡

-15- Limnanthaceae (3 • 11) Sidalcea hickmanii ssp. hickmanii Limnanthes alba ssp. parishii ‡ Sidalcea hickmanii ssp. napensis • NAP Limnanthes alba ssp. versicolor Sidalcea hickmanii ssp. parishii Limnanthes bakeri • MEN Sidalcea hickmanii ssp. pillsburiensis • LAK Limnanthes douglasii ssp. nivea ‡ Sidalcea hickmanii ssp. viridis Limnanthes douglasii ssp. ornduffii • SMT Sidalcea hirsuta Limnanthes douglasii ssp. rosea Sidalcea keckii Limnanthes douglasii ssp. striata Sidalcea malvaeflora ssp. californica ‡ Limnanthes douglasii ssp. sulphurea Sidalcea malvaeflora ssp. dolosa • SBD ' Limnanthes floccosa ssp. californica ‡ Sidalcea malvaeflora ssp. laciniata Limnanthes montana Sidalcea malvaeflora ssp. malvaeflora Limnanthes vinculans Sidalcea malvaeflora ssp. purpurea Sidalcea malvaeflora ssp. rostrata Linaceae (12 • 12) Sidalcea oregana ssp. eximia ‡ Hesperolinon adenophyllum Sidalcea oregana ssp. hydrophila Hesperolinon bicarpellatum Sidalcea oregana ssp. valida • SON Hesperolinon breweri Sidalcea pedata Hesperolinon californicum Sidalcea ranunculacea Hesperolinon clevelandii Sidalcea reptans Hesperolinon congestum Sidalcea robusta Hesperolinon didymocarpum Sidalcea stipularis • NEV Hesperolinon disjunctum Sphaeralcea rusbyi ssp. eremicola ‡ Hesperolinon drymarioides Hesperolinon sharsmithiae Melanthiaceae (6 • 8) Hesperolinon spergulinum Trillium angustipetalum Hesperolinon tehamense Trillium chloropetalum var. chloropetalum Trillium chloropetalum var. giganteum Loasaceae (8 • 9) Trillium ovatum ssp. oettingeri ‡ Mentzelia crocea Veratrum fimbriatum Mentzelia eremophila Zigadenus brevibracteatus Mentzelia gracilenta Zigadenus exaltatus Mentzelia lindleyi Zigadenus fontanus Mentzelia monoensis • MNO Mentzelia pectinata Montiaceae (14 • 20) Mentzelia ravenii Calyptridium parryi var. hesseae ‡ Mentzelia tridentata Calyptridium parryi var. parryi Petalonyx thurberi ssp. gilmanii • INY ‡ Calyptridium pulchellum Calyptridium pygmaeum Malvaceae (26 • 47) Calyptridium quadripetalum Eremalche parryi ssp. kernensis Claytonia gypsophiloides Eremalche parryi ssp. parryi Claytonia obovata Malacothamnus abbottii • MNT Claytonia palustris Malacothamnus aboriginum Claytonia parviflora ssp. grandiflora ‡ Malacothamnus clementinus • SCM ' Claytonia peirsonii ssp. bernardinus Malacothamnus davidsonii Claytonia peirsonii ssp. californacis • SBD Malacothamnus enigmaticus • SDO Claytonia peirsonii ssp. peirsonii Malacothamnus fasciculatus var. catalinensis •SCT ‡ Claytonia peirsonii ssp. yorkii Malacothamnus fasciculatus var. nesioticus • SCZ Lewisia cantelovii Malacothamnus fasciculatus var. nuttallii Lewisia congdonii Malacothamnus fremontii Lewisia cotyledon var. heckneri • TRI ‡ Malacothamnus hallii Lewisia disepala Malacothamnus jonesii Lewisia glandulosa Malacothamnus orbiculatus Lewisia kelloggii ssp. hutchisonii ‡ Malacothamnus palmeri var. involucratus Lewisia kelloggii ssp. kelloggii Malacothamnus palmeri var. palmeri Lewisia longipetala Malva assurgentiflora Lewisia serrata • ELD Sidalcea calycosa ssp. calycosa Lewisia stebbinsii • MEN Sidalcea calycosa ssp. rhizomata Sidalcea celata Myricaceae (1 • 1) Sidalcea covillei Myrica hartwegii Sidalcea diploscypha Sidalcea gigantea Namaceae (6 • 9) Sidalcea hartwegii Eriodictyon altissimum Sidalcea hickmanii ssp. anomala Eriodictyon capitatum • SBA

-16- Eriodictyon crassifolium var. crassifolium Clarkia rubicunda Eriodictyon crassifolium var. nigrescens Clarkia similis Eriodictyon tomentosum Clarkia speciosa ssp. immaculata • SLO Eriodictyon traskiae var. smithii Clarkia speciosa ssp. nitens Eriodictyon traskiae var. traskiae • SCT Clarkia speciosa ssp. polyantha Eriodictyon trichocalyx var. trichocalyx ‡ Clarkia speciosa ssp. speciosa Nama demissum var. covillei Clarkia springvillensis • TUL Clarkia stellata Nyctaginaceae (4 • 4) Clarkia tembloriensis ssp. calientensis • KRN Abronia alpina • TUL Clarkia tembloriensis ssp. longistyla Abronia x neurophylla • VEN (1901) Clarkia tembloriensis ssp. tembloriensis Anulocaulis annulatus Clarkia unguiculata Mirabilis greenei Clarkia virgata Clarkia williamsonii Oleaceae (0 • 1) Clarkia xantiana ssp. parviflora Menodora spinescens var. mohavensis • SBA ‡ Clarkia xantiana ssp. xantiana Epilobium cleistogamum Onagraceae (49 • 72) Epilobium howellii Camissonia benitensis • SBT Epilobium nivium Camissonia campestris ssp. obispoensis ‡ Epilobium septentrionale Camissonia cardiophylla ssp. robusta • INY ‡ Gayophytum eriospermum Camissonia claviformis ssp. lancifolia ‡ Gayophytum oligospermum Camissonia guadalupensis ssp. clementina • SCM Oenothera californica ssp. eurekensis • INY ‡ Camissonia hardhamiae Oenothera deltoides ssp. cognata ‡ Camissonia integrifolia • KRN Oenothera deltoides ssp. howellii • CCA ' Camissonia kernensis ssp. kernensis ‡ Oenothera elata ssp. hookeri Camissonia lacustris Camissonia luciae Orchidaceae (5 • 6) Camissonia micrantha Piperia colemanii Camissonia pallida ssp. hallii ‡ Piperia elegans ssp. decurtata • MRN ‡ Camissonia sierrae ssp. alticola Piperia michaelii Camissonia sierrae ssp. sierrae Piperia yadonii • MNT Clarkia affinis Platanthera x lassenii • INY Clarkia amoena ssp. whitneyi ‡ Platanthera yosemitensis Clarkia arcuata Clarkia australis Papaveraceae (16 • 19) Clarkia biloba ssp. australis Argemone munita var. robusta Clarkia biloba ssp. biloba Canbya candida Clarkia biloba ssp. brandegeeae Corydalis caseana ssp. caseana ‡ Clarkia borealis ssp. arida Dendromecon harfordii Clarkia borealis ssp. borealis Dicentra nevadensis Clarkia bottae Ehrendorferia ochroleuca Clarkia breweri Eschscholzia androuxii Clarkia concinna ssp. automixa • SCL ' Eschscholzia hypecoides Clarkia concinna ssp. concinna Eschscholzia lemmonii ssp. kernensis • KRN Clarkia concinna ssp. raichei • MRN Eschscholzia lemmonii ssp. lemmonii Clarkia cylindrica ssp. clavicarpa Eschscholzia lobbii Clarkia cylindrica ssp. cylindrica Eschscholzia minutiflora ssp. twisselmannii • KRN ‡ Clarkia davyi Eschscholzia papastillii Clarkia dudleyana Eschscholzia rhombipetala Clarkia exilis Hesperomecon linearis Clarkia franciscana Meconella californica Clarkia gracilis ssp. albicaulis ‡ Meconella denticulata Clarkia gracilis ssp. tracyi Papaver californicum Clarkia imbricata • SON Platystemon californicus var. ciliatus • SBR (1940) ‡ Clarkia jolonensis • MNT Romneya coulteri Clarkia lewisii Clarkia lingulata Plantaginaceae (0 • 1) Clarkia mildrediae ssp. lutescens Plantago bigelovii ssp. californica ‡ Clarkia mildrediae ssp. mildrediae Clarkia modesta Polemoniaceae (77 • 124) Check # Clarkia mosquinii Allophyllum divaricatum Clarkia prostrata • MPA ' Collomia diversifolia Clarkia rostrata • STA ' Collomia rawsoniana

-17- Collomia tracyi Leptosiphon jepsonii Eriastrum abramsii Leptosiphon latisectus Eriastrum brandegeeae Leptosiphon maculatus ssp. emaculatus Eriastrum calocyanum Leptosiphon montanus Eriastrum densifolium ssp. austromontanum Leptosiphon nudatus Eriastrum densifolium ssp. densifolium Leptosiphon nuttallii ssp. howellii • TEH ‡ Eriastrum densifolium ssp. mohavense Leptosiphon oblanceolatus Eriastrum densifolium ssp. patens • SLO Leptosiphon pygmaeus ssp. continentalis Eriastrum densifolium ssp. sanctorum • SBD ' Leptosiphon rattanii Eriastrum diffusum ssp. coachellae Leptosiphon rosaceus • SMT ' Eriastrum ertterae • CCA Leptosiphon serrulatus Eriastrum harwoodii Linanthus bernardinus • SBD Eriastrum hooveri Linanthus concinnus Eriastrum luteum Linanthus dichotomus ssp. meridianus ‡ Eriastrum pluriflorum ssp. albifaux Linanthus killipii • SBD Eriastrum pluriflorum ssp. pluriflorum Linanthus maculatus ssp. emaculatus Eriastrum pluriflorum ssp. sherman-hoytiae Linanthus maculatus ssp. maculatus Eriastrum rosamondense • LAX Linanthus parryae Eriastrum sapphirinum ssp. brevibracteatum Navarretia cotulifolia Eriastrum tracyi Navarretia crystallina Eriastrum virgatum Navarretia eriocephala Gilia achilleifolia ssp. achilleifolia Navarretia filicaulis Gilia austro-occidentalis Navarretia gowenii Gilia brecciarum ssp. neglecta Navarretia hamata ssp. parviloba Gilia cana ssp. bernardina • SBD ‡ Navarretia heterodoxa Gilia cana ssp. cana Navarretia jepsonii Gilia cana ssp. speciosa Navarretia leucocephala ssp. bakeri ‡ Gilia capitata ssp. chamissonis ‡ Navarretia leucocephala ssp. pauciflora Gilia capitata ssp. mediomontana Navarretia leucocephala ssp. plieantha Gilia capitata ssp. pedemontana Navarretia mellita Gilia capitata ssp. tomentosa Navarretia mitracarpa Gilia interior Navarretia miwukensis Gilia jacens Navarretia myersii ssp. deminuta Gilia latiflora ssp. cuyamensis ‡ Navarretia myersii ssp. myersii Gilia latiflora ssp. davyi Navarretia nigelliformis ssp. nigelliformis Gilia latiflora ssp. elongata Navarretia nigelliformis ssp. radians Gilia latiflora ssp. latiflora Navarretia ojaiensis Gilia leptantha ssp. leptantha • SBD Navarretia paradoxiclara Gilia leptantha ssp. pinetorum Navarretia paraxoxinota Gilia leptantha ssp. purpusii Navarretia prolifera ssp. lutea • ELD ' Gilia leptantha ssp. transversa Navarretia prolifera ssp. prolifera Gilia ochroleuca ssp. bizonata ‡ Navarretia prostrata Gilia ochroleuca ssp. lanosa Navarretia rosulata Gilia ochroleuca ssp. minima Navarretia setiloba Gilia ochroleuca ssp. ochroleuca Navarretia sinistra ssp. pinnatisecta ‡ Gilia ochroleuca ssp. vivida Navarretia viscidula ssp. purpurea Gilia tenuiflora ssp. amplifaucalis Navarretia viscidula ssp. viscidula Gilia tenuiflora ssp. arenaria • MNT Phlox dispersa Gilia tenuiflora ssp. hoffmannii • SRO Phlox dolichantha • SBD ' Gilia tenuiflora ssp. tenuiflora Phlox hirsuta • SIS Gilia tricolor ssp. diffusa ‡ Polemonium chartaceum Gilia tricolor ssp. tricolor Polemonium eddyense • SIS Gilia yorkii • FRE Polemonium eximium Ipomopsis aggregata ssp. bridgesii ‡ Polemonium pulcherrimum var. shastense ‡ Leptodactylon californicum Saltugilia latimeri Leptodactylon jaegeri • RIV ' Saltugilia splendens ssp. grantii Leptosiphon acicularis Saltugilia splendens ssp. splendens Leptosiphon ambiguus Leptosiphon androsaceus Polygalaceae (1 • 1) Leptosiphon breviculus Rhinotropis cornuta var. cornuta Leptosiphon chrysanthus ssp. decorus Leptosiphon filipes Polygonaceae (77 • 122) Leptosiphon floribundus ssp. hallii • RIV ' Acanthoscyphus parishii var. abramsii Leptosiphon grandiflorus Acanthoscyphus parishii var. cienegensis • SBD

-18- Acanthoscyphus parishii var. goodmaniana • SBD Eriogonum gilmanii • INY Acanthoscyphus parishii var. parishii Eriogonum gossypinum Aristocapsa insignis • SLO ' Eriogonum gracillimum Chorizanthe angustifolia Eriogonum grande var. grande Chorizanthe aphanantha • SLO Eriogonum grande var. rubescens Chorizanthe biloba var. biloba Eriogonum grande var. timorum • SNI Chorizanthe biloba var. immemora • SBT ' Eriogonum heermannii var. heermannii Chorizanthe blakleyi • SBA Eriogonum heermannii var. occidentale Chorizanthe breweri Eriogonum hirtellum • SIS Chorizanthe clevelandii Eriogonum hirtiflorum Chorizanthe cuspidata var. cuspidata Eriogonum hoffmannii var. hoffmannii • INY Chorizanthe cuspidata var. villosa Eriogonum hoffmannii var. robustius • INY Chorizanthe diffusa Eriogonum inerme var. hispidulum Chorizanthe douglasii Eriogonum intrafractum • INY ' Chorizanthe howellii • MEN Eriogonum kelloggii • MEN Chorizanthe minutiflora • MNT Eriogonum kennedyi var. alpigenum ‡ Chorizanthe obovata Eriogonum kennedyi var. austromontanum • SBD Chorizanthe orcuttiana • SDO Eriogonum kennedyi var. kennedyi Chorizanthe palmeri Eriogonum kennedyi var. pinicola • KRN Chorizanthe parryi var. fernandina Eriogonum libertini Chorizanthe parryi var. parryi Eriogonum luteolum var. caninum ‡ Chorizanthe polygonoides var. polygonoides Eriogonum luteolum var. pedunculatum Chorizanthe pungens var. hartwegiana • SCR ' Eriogonum luteolum var. saltuarium • TUO Chorizanthe pungens var. pungens Eriogonum marifolium var. cupulatum • SIS ‡ Chorizanthe rectispina Eriogonum microthecum var. alpinum ‡ Chorizanthe robusta var. hartwegii Eriogonum microthecum var. corymbosoides Chorizanthe robusta var. robusta Eriogonum microthecum var. johnstonii Chorizanthe spinosa Eriogonum microthecum var. lacus-ursi • SBD Chorizanthe staticoides Eriogonum microthecum var. panamintense • INY Chorizanthe stellulata Eriogonum mohavense Chorizanthe uniaristata Eriogonum molestum Chorizanthe valida • MRN ' Eriogonum nervulosum Chorizanthe ventricosa Eriogonum nortonii Chorizanthe wheeleri Eriogonum nudum var. auriculatum ‡ Chorizanthe xanti var. leucotheca • RIV Eriogonum nudum var. decurrens Chorizanthe xanti var. xanti Eriogonum nudum var. indictum Dedeckera eurekensis • INY Eriogonum nudum var. murinum • TUL Dodecahema leptoceras Eriogonum nudum var. psychicola • CCA Eriogonum alpinum Eriogonum nudum var. regirivum • FRE Eriogonum angulosum Eriogonum nudum var. scapigerum Eriogonum apiculatum Eriogonum nudum var. westonii Eriogonum apricum var. apricum • AMA Eriogonum ordii Eriogonum apricum var. prostratum • AMA Eriogonum ovalifolium var. monarchense • FRE ‡ Eriogonum arborescens Eriogonum ovalifolium var. vineum • SBD Eriogonum argillosum • SBT ' Eriogonum parvifolium Eriogonum x blissianum • SBA Eriogonum polypodum • TUL ' Eriogonum breedlovei var. breedlovei • KRN Eriogonum prattenianum var. avium Eriogonum breedlovei var. shevockii Eriogonum prattenianum var. prattenianum Eriogonum butterworthianum • MNT Eriogonum siskiyouense Eriogonum callistum • KRN Eriogonum spectabile • PLU Eriogonum cedrorum • SON Eriogonum spergulinum var. pratense ‡ Eriogonum cinereum Eriogonum spergulinum var. spergulinum Eriogonum cithariforme var. agninum Eriogonum strictum var. greenei ‡ Eriogonum cithariforme var. cithariforme Eriogonum temblorense Eriogonum congdonii Eriogonum thornei • SBD Eriogonum covilleanum Eriogonum tripodum Eriogonum crocatum • Ventura Eriogonum truncatum • CCA (1936) Eriogonum dasyanthemum Eriogonum twisselmannii • TUL Eriogonum eastwoodianum • FRE Eriogonum umbellatum var. ahartii • BUT ‡ Eriogonum elegans Eriogonum umbellatum var. bahiiforme Eriogonum eremicola • INY ' Eriogonum umbellatum var. canifolium Eriogonum giganteum var. compactum • SBR Eriogonum umbellatum var. chlorothamnus Eriogonum giganteum var. formosum • SCL Eriogonum umbellatum var. covillei Eriogonum giganteum var. giganteum • SCT Eriogonum umbellatum var. humistratum

-19- Eriogonum umbellatum var. lautum • SIS Delphinium variegatum ssp. thornei • SCM Eriogonum umbellatum var. minus Delphinium variegatum ssp. variegatum Eriogonum umbellatum var. munzii Enemion occidentale Eriogonum umbellatum var. nelsoniorum Ranunculus canus var. canus ‡ Eriogonum umbellatum var. polyanthum Ranunculus canus var. ludovicianus Eriogonum umbellatum var. smallianum Ranunculus hystriculus Eriogonum umbellatum var. speciosum Eriogonum umbellatum var. torreyanum Rhamnaceae (35 • 57) 000 Eriogonum ursinum var. erubescens Ceanothus confusus Eriogonum ursinum var. ursinum Ceanothus x connivens • AMA ' Eriogonum vestitum Ceanothus crassifolius var. planus Eriogonum viridescens Ceanothus cuneatus var. fascicularis ‡ Eriogonum wrightii var. olanchense • TUL ‡ Ceanothus cuneatus var. ramulosus Eriogonum wrightii var. subscaposum Ceanothus cuneatus var. rigidus Eriogonum wrightii var. trachygonum Ceanothus decornutus • MRN Gilmania luteola • INY Ceanothus dentatus Hollisteria lanata Ceanothus divergens Mucronea californica Ceanothus diversifolius Mucronea perfoliata Ceanothus ferrisiae • SCL ' Polygonum bidwelliae Ceanothus x flexilis Polygonum bolanderi Ceanothus foliosus var. foliosus Polygonum hickmanii Ceanothus foliosus var. medius Polygonum marinense Ceanothus foliosus var. viejasensis • SDO Sidotheca caryophylloides Ceanothus foliosus var. vineatus • SON Sidotheca emarginata • RIV Ceanothus fresnensis Systenotheca vortriedei Ceanothus gloriosus var. exaltatus Ceanothus gloriosus var. gloriosus Primulaceae (3 • 4) Ceanothus gloriosus var. porrectus • MRN ' Dodecatheon clevelandii ssp. patulum Ceanothus griseus Dodecatheon clevelandii ssp. sanctarum Ceanothus hearstiorum • SLO Dodecatheon subalpinum Ceanothus impressus var. impressus • SBA Primula suffrutescens Ceanothus impressus var. nipomensis • SLO Ceanothus incanus Ranunculaceae (20 • 36) Ceanothus jepsonii var. albiflorus Aquilegia eximia Ceanothus jepsonii var. jepsonii Delphinium antoninum Ceanothus lemmonii Delphinium bakeri Ceanothus x lobbianus • MNT (1964) Delphinium californicum ssp. californicum Ceanothus x lorenzenii Delphinium californicum ssp. interius Ceanothus maritimus • SLO Delphinium decorum ssp. decorum ‡ Ceanothus masonii • MRN Delphinium decorum ssp. tracyi Ceanothus megacarpus var. insularis Delphinium gracilentum Ceanothus megacarpus var. megacarpus Delphinium gypsophilum ssp. gypsophilum Ceanothus x mendocinensis • MEN (1941) Delphinium gypsophilum ssp. parviflorum Ceanothus oliganthus var. oliganthus Delphinium hansenii ssp. ewanianum Ceanothus oliganthus var. sorediatus Delphinium hansenii ssp. hansenii Ceanothus ophiochilus • RIV Delphinium hansenii ssp. kernense Ceanothus parvifolius Delphinium hesperium ssp. cuyamacae • SDO ' Ceanothus pendletonensis • SDO Delphinium hesperium ssp. hesperium Ceanothus pinetorum Delphinium hesperium ssp. pallescens Ceanothus prostratus var. occidentalis ‡ Delphinium hutchinsoniae • MNT Ceanothus purpureus Delphinium inopinum Ceanothus roderickii • ELD Delphinium luteum Ceanothus x rugosus • MOD (1894) Delphinium parishii ssp. pallidum ‡ Ceanothus x serrulatus • ELD (1926) Delphinium parryi ssp. blochmaniae Ceanothus sonomensis Delphinium parryi ssp. eastwoodiae • SLO Ceanothus tomentosus var. tomentosus ‡ Delphinium parryi ssp. purpureum Ceanothus thrysiflorus var. obispoensis • SLO Delphinium patens ssp. montanum Ceanothus x vanrensselaeri • SFO (1964) Delphinium patens ssp. patens Frangula californica ssp. californica ‡ Delphinium purpusii Frangula californica ssp. crassifolia Delphinium recurvatum Frangula californica ssp. cuspidata Delphinium uliginosum Frangula purshiana ssp. ultramafica • PLU ‡ Delphinium umbraculorum Frangula rubra ssp. modocensis ‡ Delphinium variegatum ssp. kinkiense • LAX Frangula rubra ssp. yosemitana

-20- Rhamnus pilosa Rosa woodsii var. glabrata

Rosaceae (44 • 63) 000 Rubiaceae (16 • 44) Acaena pinnatifida var. californica Galium ambiguum ssp. ambiguum ‡ Adenostoma fasciculatum var. prostratum • SRO ' ‡ Galium andrewsii ssp. gatense Cercocarpus betuloides var. traskiae • SCT ‡ Galium andrewsii ssp. intermedium Chamaebatia foliolosa Galium angustifolium ssp. borregoense • SDO Drymocallis cuneifolia var. cuneifolia • SBD Galium angustifolium ssp. foliosum Drymocallis cuneifolia var. ewanii • LAX Galium angustifolium ssp. gabrielense Drymocallis cuneifolia var. viscida Galium angustifolium ssp. gracillimum Drymocallis hansenii Galium angustifolium ssp. jacinticum Drymocallis pseudorupestris var. crumiana ‡ Galium angustifolium ssp. nudicaule Horkelia bolanderi Galium angustifolium ssp. onycense • KRN ' Horkelia californica ssp. californica Galium argense • INY ' Horkelia californica ssp. elata Galium bolanderi Horkelia californica ssp. frondosa Galium buxifolium Horkelia cuneata ssp. cuneata Galium californicum ssp. californicum ‡ Horkelia cuneata ssp. puberula Galium californicum ssp. flaccidum Horkelia cuneata ssp. sericea Galium californicum ssp. luciense • MNT ' Horkelia daucifolia var. indicta ‡ Galium californicum ssp. maritimum Horkelia fusca var. tenella ‡ Galium californicum ssp. miguelense Horkelia marinensis Galium californicum ssp. primum • RIV ' Horkelia parryi Galium californicum ssp. sierrae • ELD Horkelia rydbergii Galium catalinense ssp. acrispum • SCM Horkelia tenuiloba Galium catalinense ssp. catalinense • SCT Horkelia tridentata var. flavescens • OR (1933) † ‡ Galium clementis • MNT Horkelia tularensis • TUL Galium cliftonsmithii Horkelia wilderae • SBD Galium glabrescens ssp. glabrescens ‡ Horkelia yadonii Galium glabrescens ssp. modocense • MOD Horkeliella congdonis Galium grande • LAX Horkeliella purpurascens Galium grayanum var. grayanum ‡ Ivesia aperta var. canina • SIE ' Galium hallii Ivesia argyrocoma var. argyrocoma • SBD Galium hardhamiae Ivesia callida • RIV Galium hilendiae ssp. carneum ‡ Ivesia campestris Galium hilendiae ssp. hilendiae Ivesia longibracteata • SHA Galium hypotrichium ssp. ebbettsense ‡ Ivesia lycopodioides ssp. megalopetala ‡ Galium hypotrichium ssp. hypotrichum Ivesia lycopodioides ssp. scandularis Galium hypotrichium ssp. inyoense • INY Ivesia muirii Galium hypotrichium ssp. subalpinum Ivesia paniculata • LAS Galium hypotrichium ssp. tomentellum Ivesia patellifera • SBD Galium jepsonii Ivesia pickeringii Galium johnstonii Ivesia pygmaea Galium matthewsii Ivesia santolinoides Galium nuttallii ssp. insulare Ivesia saxosa Galium serpenticum ssp. scotticum ‡ Ivesia sericoleuca Galium sparsiflorum ssp. glabrius Ivesia unguiculata Galium sparsiflorum ssp. sparsiflorum Lyonothamnus floribundus Neviusia cliftonii • SHA Rutaceae (1 • 1) Petrophytum caespitosum ssp. acuminatum ‡ Ptelea crenulata Potentilla acuminata • RIV (1901) Potentilla amaricum Salicaceae (1 • 1) Potentilla cristae Salix breweri Potentilla grayi Potentilla hickmanii Santalaceae (0 • 3) Potentilla morefieldii Arceuthobium campylopodum ssp. campylopodum ‡ Potentilla multijuga • LAX (1893) Arceuthobium campylopodum ssp. littorum Potentilla pseudosericea Arceuthobium campylopodum ssp. occidentale Potentilla uliginosa • SON (1947) Potentilla wheeleri Saxifragaceae (14• 15) Prunus eremophila • SBD Bolandra californica Prunus fasciculata var. punctata ‡ Boykinia rotundifolia • Baja California (1901) Rosa bridgesii • Oregon (1931) Heuchera abramsii Rosa pinetorum Heuchera brevistaminea • SDO

-21- Heuchera caespitosa Cordylanthus nidularius • CCA Heuchera elegans Cordylanthus pilosus ssp. pilosus Heuchera hirsutissima Cordylanthus pilosus ssp. trifidus Heuchera maxima Cordylanthus pringlei Heuchera micrantha var. erubescens Cordylanthus rigidus ssp. brevibracteatus Heuchera parishii Cordylanthus rigidus ssp. littoralis Jepsonia heterandra Cordylanthus rigidus ssp. rigidus Lithophragma bolanderi ‡ Cordylanthus tenuis ssp. barbatus • FRE ' ‡ Lithophragma cymbalaria Cordylanthus tenuis ssp. brunneus Lithophragma maximum • SCT Cordylanthus tenuis ssp. pallescens • SIS Lithophragma trifoliatum Cordylanthus tenuis ssp. tenuis Diplacus angustatus Scrophulariaceae (133 • 177) Diplacus aridus Aphyllon epigalium ssp. notocalifornicum Diplacus bicolor Castilleja affinis ssp. neglecta ‡ Diplacus calycinus Castilleja ambigua var. humboldtiensis ‡ Diplacus compactus Castilleja ambigua var. insalutata Diplacus congdonii Castilleja ambigua var. meadii Diplacus constrictus Castilleja applegatei ssp. breweri Diplacus fremontii Castilleja brevistyla Diplacus grandiflorus Castilleja campestris ssp. succulenta ‡ Diplacus grantinicola Castilleja cinerea • SBD Diplacus johnstonii Castilleja densiflora ssp. densiflora Diplacus layneae Castilleja densiflora ssp. obispoensis • SLO Diplacus linearis Castilleja disticha Diplacus mohavensis • SBD ' Castilleja exserta ssp. latifolia ‡ Diplacus parviflorus Castilleja exserta ssp. venusta Diplacus pictus Castilleja gleasonii • LAX ' Diplacus pulchellus Castilleja grisea Diplacus rattanii Castilleja hololeuca Diplacus rupicola • INY Castilleja lasiorhyncha • SBD ' Diplacus rutilus Castilleja latifolia Diplacus thompsonii Castilleja leschkeana • MRN (1960) Diplacus torreyi Castilleja lineariiloba Diplacus traskiae • SCT (1901) Castilleja minor var. spiralis ‡ Diplacus vandenbergensis • SBA Castilleja mollis Diplacus viscidus Castilleja montigena • SBD Erythranthe acutidens Castilleja nana Erythranthe androsaceus Castilleja plagiotoma Erythranthe arenaria Castilleja praeterita Erythranthe arenicola Castilleja rubicundula ssp. rubicundula ‡ Erythranthe barbata Castilleja subinclusa ssp. franciscana Erythranthe bicolor Castilleja uliginosa • SON Erythranthe calcicola • INY Castilleja wightii Erythranthe discolor Chloropyron molle ssp. hispidum Erythranthe filicaulis Chloropyron molle ssp. molle Erythranthe filicifolia Chloropyron palmata Erythranthe geniculata Collinsia antonina • MNT Erythranthe glaucescens Collinsia bartsiifolia var. bartsiifolia Erythranthe gracilipes Collinsia bartsiifolia var. davidsonii Erythranthe grayi Collinsia bartsiifolia var. hirsuta • SCR ' Erythranthe hardhamiae Collinsia bartsiifolia var. stricta • MAD ' Erythranthe howaldiae • MNO Collinsia callosa Erythranthe inconspicua Collinsia childii Erythranthe laciniata Collinsia corymbosa • MEN ' Erythranthe linearifolia Collinsia greenei Erythranthe montoides Collinsia heterophylla var. austromontana Erythranthe norrisii • TUL Collinsia multicolor Erythranthe nudata Collinsia parryi Erythranthe palmeri Collinsia sparsiflora var. collina ‡ Erythranthe pardalis Collinsia tinctoria Erythranthe percaulis • PLU Collinsia wrightii Erythranthe rhodopetra • KRN Cordylanthus eremicus ssp. eremicus Erythranthe shevockii • KRN Cordylanthus eremicus ssp. kernensis

-22- Erythranthe sierrae Smilacaceae (1 • 1) Erythranthe taylorii • SHA Smilax jamesii Erythranthe trinitiensis Erythranthe willisii • PLU Solanaceae (4 • 8) Holmgrenanthe petrophila Lycium brevipes var. hassei Howelliella ovata Lycium verrucosum • VEN (1901) Keckiella breviflora ssp. breviflora ‡ Nicotiana quadrivalvis var. wallacei • SBD Keckiella corymbosa Solanum clokeyi • SBA Keckiella rothrockii ssp. jacintensis • RIV ‡ Solanum umbelliferum var. incanum ‡ Keckiella ternata ssp. septentrionalis Solanum xanti var. hoffmannii ‡ Orobanche californica ssp. condensa ‡ Solanum xanti var. intermedium Orobanche californica ssp. grandis Solanum xanti var. obispoense • SLO (1939) Orobanche californica ssp. jepsonii Orobanche robbinsii Staphyleaceae (1 • 1) Orobanche valida ssp. howellii Staphylea bolanderi Orobanche valida ssp. valida Orobanche vallicola Sterculiaceae (1 • 1) Orthocarpus pachystachyus Fremontodendron decumbens Pedicularis dudleyi Pedicularis rigginsiae • SLO Thymelaeaceae Penstemon azureus ssp. angustissimus Dirca occidentalis Penstemon caesius Penstemon calcareus Umbelliferae [Apiaceae] (47 • 55) Penstemon clevelandii ssp. connatus Angelica californica Penstemon clevelandii ssp. mohavensis Angelica callii Penstemon x dubius Cymopterus deserticola Penstemon filiformis Cymopterus panamintensis var. acutifolius ‡ Penstemon fruticiformis ssp. fruticiformis ‡ Cymopterus panamintensis var. panamintensis Penstemon grinnellii Eryngium aristulatum var. aristulatum Penstemon heterodoxus var. cephalophorus Eryngium aristulatum var. hooveri Penstemon heterodoxus var. shastensis Eryngium armatum Penstemon heterophyllus var. australis Eryngium castrense Penstemon heterophyllus var. heterophyllus Eryngium constancei Penstemon heterophyllus var. purdyi Eryngium jepsonii Penstemon incertus Eryngium mathiasiae Penstemon laetus ssp. laetus ‡ Eryngium pendletonense • SDO Penstemon laetus ssp. leptosepalus Eryngium pinnatisectum Penstemon monoensis Eryngium racemosum Penstemon neotericus Eryngium spinosepalum Penstemon newberryi ssp. sonomensis Eryngium vaseyi var. vallicola Penstemon papillatus Eryngium vaseyi var. vaseyi Penstemon x parishii Lilaeopsis masonii Pemstemon x peirsonii • VEN (1923) Lomatium caruifolium var. caruifolium Penstemon personatus Lomatium caruifolium var. denticulatum Penstemon purpusii Lomatium ciliolatum Penstemon rattanii ssp. kleei Lomatium congdonii Penstemon scapoides • INY Lomatium dasycarpum ssp. tomentosum Penstemon spectabilis ssp. subviscosus Lomatium hooveri Penstemon stephensii Lomatium kogholiini • MEN Penstemon tracyi Lomatium marginatum var. marginatum ‡ Sairocarpus cornutus ssp. cornutus Lomatium marginatum var. purpureum Sairocarpus cornutus ssp. leptaleus Lomatium observatorium Sairocarpus elmeri • (1903) Lomatium parvifolium Sairocarpus multiflorus Lomatium repostum Sairocarpus subcordatus Lomatium rigidum Sairocarpus vexillocalyculatus ssp. intermedius ‡ Lomatium shevockii • KRN Sairocarpus vexillocalyculatus ssp. v. Lomatium stebbinsii Sairocarpus virga Lomatium torreyi Scrophularia atrata Lomatium tracyi Triphysaria eriantha ssp. rosea ‡ Oreonana clementis Triphysaria floribunda Oreonana purpurascens • TUL Triphysaria micrantha Oreonana vestita Veronica copelandii Perideridia bacigalupii Perideridia bolanderi ssp. involucrata ‡

-23- Perideridia californica Lewisia serrata Perideridia gairdneri ssp. gairdneri ‡ Navarretia prolifera ssp. lutea Perideridia kelloggii Wyethia reticulata Perideridia leptocarpa Perideridia pringlei Fresno County (8) Podistera nevadensis Cordylanthus tenuis ssp. barbatus Sanicula bipinnata Eriogonum nudum var. regirivum Sanicula hoffmannii Eriogonum ovalifolium var. monarchense Sanicula maritima Gilia yorkii Sanicula saxatilis Helianthus winteri Sanicula tracyi Heterotheca monarchensis Spermolepis infernensis • SDO ' Streptanthus fenestratus Tauschia hartwegii Umbellularia californica var. fresnensis Tauschia parishii Humboldt County (2) Valerianaceae (1 • 1) Lathyrus biflorus Plectritis congesta ssp. nitida Lupinus constancei

Verbenaceae (2 • 2) Inyo County (39) Verbena abramsii • SDO Astragalus atratus var. mensanus Verbena californica • TUO Astragalus cimae var. sufflatus Verbena x clemensiorum • AMA Astragalus lentiginosus var. micans Astragalus panamintensis Violaceae (4 • 6) Astragalus sepultipes Viola californica • HUM (1946) Boechera yorkii Viola pedunculata ssp. tenuifolia Camissonia cardiophylla ssp. robusta Viola pinetorum ssp. grisea Cryptantha roosiorum Viola pinetorum ssp. pinetorum Enceliopsis covillei Viola purpurea ssp. mesophyta ‡ Erigeron calvus Viola tomentosa Eriogonum eremicola Eriogonum hoffmanii var. hoffmanii Eriogonum hoffmanii var. robustius PLANTS ENDEMIC TO A SINGLE Eriogonum intrafractum COUNTY OR CHANNEL ISLAND Eriogonum microthecum var. panamintense Erythranthe calcicola Amador County (2) Galium hypotrichium ssp. inyoense Eriogonum apricum var. apricum Galium hypotrichium ssp. tomentellum Eriogonum apricum var. prostratum Gilmania luteola Verbena x clemensiorum Hesperidanthus jaegeri Lomatium rigidum Butte County (1) Lupinus magnificus var. glarecola Trifolium jokerstii Lupinus magnificus var. hesperius Lupinus magnificus var. magnificus Calaveras County (1) Lupinus pratensis var. eriostachyus Ceanothus x connivens Mimulus rupicola Oenothera californica ssp. eurekensis Contra Costa County (6) Penstemom scapoides Cordylanthus nidularis Perityle inyoensis Eriastrum ertterae Perityle villosa Eriogonum nudum var. psychicola Petalonyx thurberi ssp. gilmanii Eriogonum truncatum Phacelia perityloides var. perityloides Oenothera deltoides ssp. howellii Physocarpus annulatus var. alternans Streptanthus hispidus Physocarpus annulatus var. panamintensis Platanthera x lassenii Del Norte County (4) Sidalcea covillei Arctostaphylos nortensis Swallenia alexandrae Sedum citrinum Tetracoccus ilicifolius Sedum patens Trifolium kingii var. dedeckerae Silene serpentinicola Kern County (19) El Dorado County (6) Allium shevockii Ceanothus roderickii Astragalus ertterae Ceanothus x serrulatus Camissonia integrifolia Galium californicum ssp. sierrae Clarkia tembloriensis ssp. calientensis

-24- Deinandra arida Streptanthus glandulosus ssp. secundus Eremalche parryi ssp. kernensis Eriogonum breedlovei var. breedlovei Mariposa County (6) Eriogonum callistum Allium yosemitense Erythranthe rhodopetra Clarkia rostrata Eschscholzia lemmonii ssp. kernensis Erigeron mariposanus Eschscholzia minutiflora ssp. twisselmannii Eriophyllum congdonii Galium angustifolium ssp. onycense Eriophyllum nubigenum Heterotheca shevockii Lupinus citrinus var. deflexus Layia leucopappa Lomatium shevockii Mendocino County (12) Mimulus shevockii Arctostaphylos nummularia ssp. mendocinoensis Streptanthus cordatus var. piutensis Ceanothus x mendocinensis Stylocline citroleum Chorizanthe howellii Triteleia piutensis Eriogonum kelloggii Harmonia guggolziorium Lake County (7) Lewisia stebbinsii Boechera ultra-alsa Limnanthes bakeri Camissonia lacustris Lomatium kogholiini Ceanothus divergens var. occidentalis Lupinus milo-bakeri Plagiobothrys lithocaryus Nemophila hoplandensis Sedella leiocarpa Pinus contorta ssp. bolanderi Sidalcea hickmanii ssp. pillsburiensis Sedum eastwoodiae Streptanthus vernalis Merced County (2) Lassen County (2) Phacelia ciliata var. opaca Astragalus anxius Streptanthus insignis ssp. lyonii Ivesia paniculata Modoc County (2) Los Angeles County (13) Galium glabrescens ssp. modocense Astragalus lentiginosus var. albiflorus Lupinus latifolius var. barbatus Calochortus clavatus var. gracilis Delphinium variegatum ssp. kinkiense Mono County (6) Drymocallis cuneifolia var. ewanii Draba incrassata Dudleya cymosa ssp. agouriensis Draba monoensis Dudleya cymosa ssp. crebrifolia Erythranthe howaldiae Dudleya densiflora Lupinus duranii Galium grande Lupinus sublanatus Helianthus inexpectatus Mentzelia monoensis Lupinus excubitus var. johnstonii Lupinus peirsonii Monterey County (18) Monardella australis ssp. gabrielensis Agrostis lacuna-vernalis Potentilla multijuga Arctostaphylos montereyensis Arctostaphylos tomentosa ssp. bracteosa Madera County (1) Ceanothus x lobbianus Erythronium pluriflorum Clarkia jolonensis Collinsia antonina Marin County (17) Cupressus goveniana Arctostaphylos montana ssp. montana Cupressus macrocarpa Arctostaphylos virgata Delphinium hutchinsoniae Calochortus tiburonensis Ericameria fasciculata Castilleja leschkeana Eriogonum butterworthianum Ceanothus decornutus Galium californicum ssp. luciense Ceanothus gloriosus var. porrectus Galium clementis Ceanothus masonii Gilia tenuiflora ssp. arenaria Chorizanthe valida Malacothamnus abbottii Cirsium hydrophilum var. vaseyi Piperia yadonii Clarkia concinna ssp. raichei Pogogyne clareana Lessingia micradenia var. micradenia Triteleia x versicolor Lupinus punto-reyensis Melica geyeri var. aristulata Napa County (4) Piperia elegans ssp. decurtata Castilleja ambigua ssp. meadii Streptanthus anomalus Poa napensis Streptanthus glandulosus ssp. pulchellus Sidalcea hickmanii ssp. napensis

-25- Trichostema ruygtii Lotus argyraeus var. multicaulis Mimulus mohavensis Nevada County (2) Monardella australis ssp. jokerstii Sidalcea stipularis Monardella boydii Streptanthus tortuosus ssp. truei Packera bernardina Phlox dolicantha Orange County (2) Physaria kingii ssp. bernardina Pentachaeta aurea ssp. allenii Prunus eremophila Dudleya stolonifera Pyrrocoma uniflora var. gossypina Silene krantzii Plumas County (5) Taraxacum californicum Eleocharis torticulmis Thelypodium stenopetalum Eriogonum spectabile Erythranthe percaulis San Diego County (23) Monardella stebbinsii Astragalus deanei Pedicularis densiflora ssp. aurantica Baccharis vanessae Ceanothus x otayensis Riverside County (16) Ceanothus pendletonensis Allium munzii Ceanothus viejasensis Astragalus lentiginosus var. coachellae Chorizanthe orcuttiana Atriplex coronata var. notatior Cupressus stephensonii [RIV ?] Boechera johnstonii Cylindropuntia x fosbergii Ceanothus ophiochilus Dudleya brevifolia Dieteria canescens var. ziegleri Ericameria cuneata var. macrocephala Draba saxosa Eryngium pendletonensis Galium angustifolium ssp. primum Galium angustifolium ssp. borregoense Ivesia callida Grindelia hallii Keckiella rothrockii ssp. jacintensis Heuchera brevistaminea Leptodactylon jaegeri Hulsea californica Leptosiphon floribundus ssp. hallii Lessingia glandulifera var. tomentosa Lupinus sparsiflorus ssp. inopinatus Malacothamnus enigmaticus Oxytheca emarginata Packera ganderi Potentilla acuminata Pinus torreyana var. torreyana Trichostema austromontanum ssp. compactum Pogogyne abramsii Ribes canthariforme Sacramento County (1) Salvia x palmeri Orcuttia viscida Spermolepis infernensis Thermopsis californica var. semota San Benito County (2) Layia discoidea San Francisco County (3) Mimulus cleistogamous Arctostaphylos franciscana Arctostaphylos montana ssp. ravenii San Bernardino County (33) Ceanothus x vanrensselerai Acanthoscyphus parishii var. cienegensis Acanthoscyphus parishii var. goodmaniana San Luis Obispo County (31) Boechera parishii Arctostaphylos hookeri ssp. hearstiorum Astragalus albens Arctostaphylos luciana Astragalus jaegerianus Arctostaphylos morroensis Castilleja cinerea Arctostaphylos osoensis Castilleja lasiornychna Arctostaphylos pilosula Castilleja montigena Arctostaphylos tomentosa ssp. daciticola Drymocallis cuneifolia var. cuneifolia Bloomeria humilis Dudleya abramsii ssp. affinis Calochortus clavatus var. recurvifolius Eriastrum densifolium ssp. sanctorum Calochortus obispoensis Ericameria parryi var. imula Carex obispoensis Eriogonum microthecum var. lacus-ursi Ceanothus hearstiorum Eriogonum thornei Ceanothus impressus var. nipomensis Gilia cana ssp. bernardina Ceanothus maritimus Gilia leptantha ssp. leptantha Ceanothus pendletonensis Horkelia wilderae Ceanothus thyrsiflorus var. obispoensis Ivesia argyrocoma var. argyrocoma Chlorogalum purpureum var. reductum Ivesia patellifera Cirsium fontinale var. obispoense Linanthus bernardinus Cirsium occidentale var. lucianum Linanthus killipii Clarkia speciosa ssp. immaculata

-26- Delphinium parryi ssp. eastwoodiae Neviusia cliftonii Dudleya abramsii ssp. bettinae Puccinellia howellii Dudleya abramsii ssp. murina Vaccinium shastense ssp. shastense Eriastrum densifolium ssp. patens Festuca californica ssp. hitchcockiana Sierra County (1) Layia jonesii Ivesia aperta var. canina Lupinus ludovicianus Lupinus nipomensis Siskiyou County (16) Monardella undulata ssp. undulata Boechera rollei Pedicularis rigginsiae Calochortus monanthus Poa diaboli Calochortus persistens Solanum xanti var. obispoense Cordylanthus tenuis ssp. pallescens Draba pterosperma San Mateo County (7) Eriogonum hirtellum Acanthomintha duttonii Eriogonum marifolium var. cupulatum Arctostaphylos montaraensis Eriogonum umbellatum var. lautum Arctostaphylos pacifica Erythronium citrinum var. roderickii Cirsium fontinale var. fontinale Minuartia stolonifera Cupressus abramsiana ssp. butanoensis Orthocarpus pachystachyus Lessingia arachnoidea Phacelia cookei Lupinus eximius Phacelia greenei Phlox hirsuta Santa Barbara County (17) Polemonium eddyense Ancistrocarphus keillii Sedum marmorense Arctostaphylos crustacea ssp. eastwoodiana Arctostaphylos crustacea ssp. insulicola Solano County (1) Arctostaphylos purissima ssp. globosa Cirsium hydrophilum var. hydrophilum Arctostaphylos purissima ssp. purissima Arctostaphylos refugioensis Sonoma County (14) Ceanothus impressus var. impressus Arctostaphylos bakeri ssp. bakeri Chorizanthe blakeyi Arctostaphylos bakeri ssp. sublaevis Deinandra increscens ssp. villosa Calochortus raichei Dudleya traskiae Carex albida Eriodictyon capitatum Castilleja uliginosa Eriogonum blissianum Clarkia imbricata Menodora spinescens var. mohavensis Cordylanthus tenuis ssp. capillaris Mimulus fremontii var. vandenbergensis Erigeron serpentinus Monardella undulata ssp. arguelloensis Eriogonum cedrorum Solanum clokeyi Lilium pardalinum ssp. pitkinense Thermopsis macrophylla Plagiobothrys mollis var. vestitus Potentilla uliginosa Santa Clara County (6) Sidalcea oregana ssp. valida Boechera rubicunda Streptanthus glandulosus ssp. sonomensis Ceanothus ferrisiae Cirsium praeteriens Tehama County (2) Clarkia concinna ssp. automixa Leptosiphon nuttallii ssp. howellii Streptanthus callistus Sedum rubiginosum Streptanthus glandulosus ssp. albidus Trinity County (3) Santa Cruz County (4) Antennaria sawyeri Arctostaphylos silvicola Silene salmonacea Chorizanthe pungens var. hartwegiana Streptanthus oblanceolatus Collinsia bartesiifolia var. hirsuta Cupressus abramsiana ssp. abramsiana Tulare County (16) Abronia alpina Shasta County (11) Astragalus shevockii Adiantum shastensis Boechera shevockii Ageratina shastensis Brodiaea insignis Brodiaea matsonii Clarkia springvillensis Erythranthe taylori Dudleya abramsii ssp. costatifolia Erythronium shastense Eriogonum nudum var. murinum Eupatorium shastense Eriogonum polypodum Ivesia longibracteata Eriogonum twisselmannii Lupinus purpurascens Eriogonum wrightii var. olanchense

-27- Horkelia tularensis Eriogonum giganteum var. giganteum Iris munzii Galium catalinense ssp. catalinense Lotus oblongifolius var. cupreus Lyonothamnus floribundus ssp. floribundus Mimulus norrisii Malacothamnus fasciculatus var. catalinensis Oreonana purpurascens Mimulus traskiae Ribes tularense Santa Cruz Island (8) Tuolumne County (6) Arctostaphylos insularis Allium tuolumnense Arctostaphylos viridissima Eriogonum luteum var. salutarium Boechera hoffmanii Erythronium taylori Dudleya nesiotica Erythronium tuolumnense Lotus argophyllus var. niveus Iris hartwegii ssp. columbiana Malacothamnus fasciculatus var. nesioticus Verbena californica Ribes thacheriana Thysanocarpus conchuliferus Ventura County (5) Abronia x neurophylla Santa Rosa Island (5) Dudleya parva Arctostaphylos confertiflora Dudleya verityi Dudleya blochmaniae ssp. insularis Lycium verrucosum Dudleya gnoma Penstemon x peirsonii Gilia tenuiflora ssp. hoffmannii Pinus torreyana var. insularis

CHANNEL ISLANDS

Anacapa Island (2) Malacothrix foliosa ssp. crispifolia Malacothrix junakii

San Clemente Island (13) Astragalus nevinii Brodiaea kinkiensis Camissonia guadalupensis ssp. clementina Castilleja grisea Delphinium variegatum ssp. kinkiense Delphinium variegatum ssp. thornei Eriogonum giganteum var. formosum Galium catalinense ssp. acrispum Lithophragma maximum Malacothamnus clementina Munzothamnus blairii Stephanomeria blairii Triteleia clementina

San Miguel Island (1) Lotus dendroideus var. veatchii

San Nicolas Island (3) Eriogonum grande var. timorum Lycium verrucosum Malacothrix foliosa ssp. polycephala

Santa Barbara Island (4) Dudleya traskiae Eriogonum giganteum var. compactum Malacothrix foliosa ssp. philbrickii Platystemon californicus var. ciliatus

Santa Catalina Island (9) Arctostaphylos catalinae Cercocarpus traskiae Dudleya virens ssp. hassei Eriodictyon traskiae var. traskiae

-28- COUNTY AND CHANNEL ISLAND CODES

COUNTIES MNT • Monterey SOL • Solano ALA • Alameda MOD • Modoc SON • Sonoma ALP • Alpine MPA • Mariposa STA • Stanislaus AMA • Amador MRN • Marin SUT • Sutter BUT • Butte NAP • Napa TEH • Tehama CAL • Calaveras NEV • Nevada TRI • Trinity CCA • Contra Costa ORA • Orange TUL • Tulare COL • Colusa PLA • Placer TUO • Tuolumne DNT • Del Norte PLU • Plumas VEN • Ventura ELD • El Dorado RIV • Riverside YOL • Yolo FRE • Fresno SAC • Sacramento YUB • Yuba GLE • Glenn SBA • Santa Barbara HUM • Humboldt SBD • San Bernardino CHANNEL ISLANDS IMP • Imperial SBT • San Benito ANA • Anacapa (VEN) INY • Inyo SCL • Santa Clara FAR • Farallon Isls. (SFO) KNG • Kings SCR • Santa Cruz SBR • Santa Barbara (SBA) KRN • Kern SDO • San Diego SCM • San Clemente (LAX) LAK • Lake SFO • San Francisco SCT • Santa Catalina (LAX) LAS • Lassen SHA • Shasta SCZ • Santa Cruz (SBA) LAX • Los Angeles SIE • Sierra SMI • San Miguel (SBA) MAD • Madera SIS • Siskiyou SNI • San Nicolas (VEN) MEN • Mendocino SJQ • San Joaquin SRO • Santa Rosa (SBA) MER • Merced SLO • San Luis Obispo MNO • Mono SMT • San Mateo

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