Checklist1 of Vascular Flora of the Caliente Range San Luis Obispo County, California (3 June 2019)

David J. Keil Robert F. Hoover Herbarium Biological Sciences Department California Polytechnic State University San Luis Obispo, California

Scientific Name Common Name Family Rare n Abronia pogonantha desert sand-verbena NYCTAGINACEAE o n Acanthomintha obovata subsp. cordata heart-leaved thorn-mint LAMIACEAE 4.2 v n ❀ Achyrachaena mollis blow wives ASTERACEAE v n Acmispon brachycarpus shortpod deervetch FABACEAE v n Acmispon maritimus var. maritimus coastal deer-vetch FABACEAE v

1 Please notify the author of additions or corrections to this list ([email protected]). Some of the native plants on this list were introduced to the preserve as a part of site management and restoration. ❀ — See Wildflowers of San Luis Obispo, California, second edition (2018) for photograph. Most are illustrated in the first edition as well; old names for some species in square brackets. n — California native i — exotic species, introduced to California, naturalized or waif. v — documented by one or more specimens (Consortium of California Herbaria record; specimen in OBI; or collection that has not yet been accessioned). Some of these species are historical records and no longer occur at Sweet Springs. o — observed during field surveys; no voucher specimen known R—California Rare Plant Rank Scientific Name Common Name Family Rare n ❀ Acmispon strigosus strigose deer-vetch FABACEAE o n Acmispon wrangelianus California deervetch FABACEAE v n Agoseris heterophylla var. cryptopleura annual mountain-dandelion ASTERACEAE v n Agoseris retrorsa spear-leaved mountain- ASTERACEAE v dandelion i Ailanthus altissima tree of heaven SIMAROUBACEAE v n Allenrolfea occidentalis iodine bush CHENOPODIACEAE v n Allium diabolense Diablo onion ALLIACEAE v n Allium howellii var. howellii Howell's onion ALLIACEAE 1B.3 v n Allium peninsulare var. peninsulare peninsular onion ALLIACEAE v i Amaranthus albus tumble amaranth AMARANTHACEAE v n Ambrosia acanthicarpa annual bursage, burweed ASTERACEAE v n Ambrosia salsola var. salsola burrobrush ASTERACEAE v n Amsinckia intermedia common fiddleneck BORAGINACEAE v n ❀ Amsinckia menziesii small-flowered fiddleneck BORAGINACEAE v n Amsinckia tessellata var. gloriosa Carrizo fiddleneck BORAGINACEAE v n Amsinckia vernicosa waxy fiddleneck BORAGINACEAE v n Ancistrocarphus filagineus woolly fishhooks ASTERACEAE v n Androsace elongata subsp. acuta California rock-primrose PRIMULACEAE 4.2 v n Anisocoma acaulis scalebud ASTERACEAE v n Antirrhinum ovatum oval-leaved snapdragon PLANTAGINACEAE 4.2 v n Apiastrum angustifolium mock-celery APIACEAE v n Arctostaphylos glauca bigberry manzanita ERICACEAE v n mugwort ASTERACEAE v ❀ Artemisia douglasiana n Artemisia dracunculus wild tarragon ASTERACEAE v n Asclepias erosa desert milkweed APOCYNACEAE v Scientific Name Common Name Family Rare n Astragalus didymocarpus var. didymocarpus two-seeded milkvetch FABACEAE v n Astragalus douglasii var. douglasii Douglas's locoweed, FABACEAE v Douglas's milk-vetch n Astragalus gambelianus Gambel's milk-vetch FABACEAE o n Astragalus lentiginosus var. nigricalycis black-hair locoweed FABACEAE v n Astragalus macrodon Salinas locoweed, Salinas FABACEAE 4.3 v milk-vetch n Astragalus oxyphysus Diablo locoweed FABACEAE v n Athysanus pusillus dwarf sandweed BRASSICACEAE v n Athysanus unilateralis lady's-tongue mustard BRASSICACEAE v n Atriplex argentea var. expansa silverscale saltbush CHENOPODIACEAE v n Atriplex canescens var. canescens four-wing saltbush CHENOPODIACEAE v n Atriplex confertifolia shadscale saltbush CHENOPODIACEAE v n Atriplex fruticulosa ballscale, little oak orach CHENOPODIACEAE v n Atriplex lentiformis lens-scale saltbush, quailbush, CHENOPODIACEAE v big saltbush n Atriplex vallicola Lost Hills crownscale CHENOPODIACEAE 1B.2 v n Atriplex polycarpa allscale saltbush CHENOPODIACEAE v n Atriplex serenana var. serenana stinking orach CHENOPODIACEAE v n Atriplex spinifera spiny saltbush CHENOPODIACEAE v i Avena barbata slender wild oats POACEAE o i Avena fatua common wild oats POACEAE v n ❀ Baccharis pilularis coyote bush ASTERACEAE v n Blennosperma nanum var. nanum big tarweed ASTERACEAE v n ❀ Blitum californicum [Chenopodium California goosefoot CHENOPODIACEAE v californicum] n Blitum nuttallianum poverty-goosefoot CHENOPODIACEAE v Scientific Name Common Name Family Rare n ❀ Bloomeria crocea var. aurea common goldenstar THEMIDACEAE v n Boechera pulchra beautiful rockcress BRASSICACEAE v n Bowlesia incana bowlesia APIACEAE v n Brickellia nevinii Nevin's brickellbush ASTERACEAE v i Bromus berteroanus Chilean chess POACEAE v i Bromus diandrus ripgut brome POACEAE v i Bromus hordeaceus soft chess brome POACEAE v i Bromus rubens red brome POACEAE v i Bromus tectorum cheat grass, downy chess POACEAE v n ❀ Calandrinia menziesii [Calandrinia ciliata] red maids MONTIACEAE v n California macrophylla round-leaved filaree, California GERANIACEAE v filaree n Callitriche longipedunculata long-stalked water starwort PLANTAGINACEAE v n Calochortus clavatus var. pallidus pale-yellow mariposa lily LILIACEAE v n Calochortus splendens lilac mariposa lily LILIACEAE v n Calochortus venustus butterfly mariposa LILIACEAE v n Calyptridium monandrum sand-cress pussypaws MONTIACEAE v n Camissonia campestris subsp. campestris Mojave suncup ONAGRACEAE v n Camissonia contorta contorted-pod suncup ONAGRACEAE v n Camissonia strigulosa strigose suncup ONAGRACEAE v n Camissoniopsis hirtella hairy suncup ONAGRACEAE v n Camissoniopsis ignota petioled suncup ONAGRACEAE v n Camissoniopsis micrantha small-flowered suncup ONAGRACEAE v i Capsella bursa-pastoris shepherd's purse BRASSICACEAE v n Carex douglasii Douglas's sedge CYPERACEAE v n Castilleja attenuata valley tassels, narrow-leaved OROBANCHACEAE o owl's-clover Scientific Name Common Name Family Rare n Castilleja brevistyla short-styled owl's-clover OROBANCHACEAE v n Castilleja exserta subsp. exserta common owl's-clover OROBANCHACEAE v n Castilleja foliolosa woolly Indian paintbrush OROBANCHACEAE v n Castilleja plagiotoma Mojave Indian paintbrush OROBANCHACEAE 4.3 v n Castilleja subinclusa var. jepsonii longleaf Indian paintbrush OROBANCHACEAE v i ❀ Centaurea melitensis tocalote, Maltese star thistle ASTERACEAE v i ❀ Centaurea solstitialis yellow star thistle ASTERACEAE v n Centromadia pungens subsp. pungens common spikeweed ASTERACEAE v n Centrostegia thurberi red triangles, Thurber's POLYGONACEAE v spineflower n Chaenactis fremontii Fremont's pincushion ASTERACEAE v n Chaenactis glabriuscula var. glabriuscula common yellow pincushion ASTERACEAE v n Chaenactis glabriuscula var. lanosa sand buttons, woolly yellow ASTERACEAE o pincushion n Chaenactis glabriuscula var. megacephala big-headed yellow pincushion ASTERACEAE v n Chaenactis stevioides desert pincushion ASTERACEAE v n Chaenactis xantiana fleshy pincushion ASTERACEAE v i Chorispora tenella crossflower, purple mustard BRASSICACEAE v n Chorizanthe spinosa Mojave spineflower POLYGONACEAE v n Chorizanthe uniaristata one-awned spineflower POLYGONACEAE v n Chorizanthe watsonii Watson's spineflower POLYGONACEAE v n Chorizanthe xanti var. xanti pinyon spineflower POLYGONACEAE v n Clarkia cylindrica subsp. cylindrica speckled clarkia ONAGRACEAE v n ❀ Clarkia purpurea subsp. quadrivulnera fourspot clarkia ONAGRACEAE v n ❀ Clarkia unguiculata elegant clarkia ONAGRACEAE v n Claytonia exigua subsp. exigua pale spring beauty MONTIACEAE v Scientific Name Common Name Family Rare n Claytonia parviflora subsp. parviflora narrow-leaved miner's lettuce MONTIACEAE v n Claytonia parviflora subsp. viridis narrow-leaved miner's lettuce MONTIACEAE v n ❀ Claytonia perfoliata subsp. perfoliata common miner's lettuce MONTIACEAE v n Collinsia bartsiifolia var. davidsonii Davidson's Chinese houses PLANTAGINACEAE v n ❀ Collinsia heterophylla common Chinese houses PLANTAGINACEAE v i ❀ Convolvulus arvensis bindweed, field morning glory CONVOLVULACEAE v n ❀ Corethrogyne filaginifolia California-aster ASTERACEAE v n ❀ Crassula connata common pygmyweed CRASSULACEAE v n Cressa truxillensis alkali weed CONVOLVULACEAE v n ❀ Croton setiger turkey-mullein EUPHORBIACEAE v n Cryptantha barbigera var. barbigera bearded cryptantha BORAGINACEAE v n Cryptantha corollata coast range cryptantha BORAGINACEAE v n Cryptantha intermedia var. intermedia Nievitas cryptantha BORAGINACEAE v n Cryptantha muricata var. jonesii Jones's cryptantha BORAGINACEAE v n Cryptantha nemaclada Colusa cryptantha BORAGINACEAE v n Cryptantha nevadensis var. rigida rigid cryptantha BORAGINACEAE v n Cryptantha oxygona sharp-nut cryptantha BORAGINACEAE v n Cryptantha pterocarya var. pterocarya winged-nut cryptantha BORAGINACEAE v n Cuscuta californica var. californica common chaparral dodder CONVOLVULACEAE v n Cuscuta occidentalis western dodder CONVOLVULACEAE v n Datura wrightii western jimson weed SOLANACEAE v n Daucus pusillus American wild carrot APIACEAE o n Deinandra pentactis Salinas River tarweed ASTERACEAE o n Delphinium gypsophilum gypsum larkspur RANUNCULACEAE v Scientific Name Common Name Family Rare n Delphinium parishii subsp. pallidum Parish's larkspur RANUNCULACEAE v n Delphinium parryi subsp. parryi Parry's larkspur RANUNCULACEAE v n Delphinium patens subsp. montanum spreading larkspur RANUNCULACEAE v n Delphinium recurvatum valley larkspur RANUNCULACEAE 1B.2 v n Deschampsia danthonioides annual hairgrass POACEAE v n Descurainia pinnata subsp. brachycarpa western tansy-mustard BRASSICACEAE v i Descurainia sophia Eurasian tansy-mustard, flix BRASSICACEAE v weed n ❀ Dipterostemon capitatus subsp. capitatus blue-dicks, schoolbells THEMIDACEAE o n Distichlis spicata saltgrass POACEAE v n ❀ Dudleya lanceolata lance-leaf dudleya CRASSULACEAE v n Eastwoodia elegans yellow mock-aster ASTERACEAE v n Elymus multisetus big squirreltail POACEAE v n Elymus triticoides beardless wildrye POACEAE v n ❀ Emmenanthe penduliflora var. penduliflora whispering bells HYDROPHYLLACEAE v n Encelia actoni Acton encelia ASTERACEAE v n Ephedra californica desert-tea EPHEDRACEAE v n Ephedra viridis greenstem Mormon-tea EPHEDRACEAE v n Epilobium campestre smooth spike-primrose ONAGRACEAE v n ❀ Epilobium canum subsp. canum California-fuchsia ONAGRACEAE v n ❀ Epilobium ciliatum subsp. ciliatum common willow-herb ONAGRACEAE v n Eremalche exilis desert mallow MALVACEAE v n Eremalche parryi subsp. kernensis Kern mallow MALVACEAE 1B.1 v n Eremalche parryi subsp. parryi Parry's mallow MALVACEAE v n Eremothera boothii subsp. decorticans Booth's desert-primrose ONAGRACEAE v Scientific Name Common Name Family Rare n Eriastrum densifolium subsp. elongatum interior giant woolly-star POLEMONIACEAE v n Eriastrum hooveri Hoover's woolly-star POLEMONIACEAE 4.2 v n Eriastrum pluriflorum subsp. sherman-hoytiae compact woolly-star POLEMONIACEAE v (T. T. Craig) H. Mason n Ericameria linearifolia interior goldenbush ASTERACEAE v n Ericameria nauseosa var. hololeuca white rabbitbush ASTERACEAE v n Ericameria nauseosa var. mohavensis Mojave rabbitbush ASTERACEAE v i Erigeron canadensis common horseweed ASTERACEAE v n Erigeron foliosus var. stenophyllus thread-leaf leafy fleabane ASTERACEAE v daisy n Eriogonum angulosum angled-stem buckwheat POLYGONACEAE v n Eriogonum baileyi var. baileyi Bailey's buckwheat POLYGONACEAE v n Eriogonum cithariforme var. agninum Santa Ynez buckwheat POLYGONACEAE v n Eriogonum cithariforme var. cithariforme cithara buckwheat POLYGONACEAE v n Eriogonum clavatum Hoover's desert-trumpet POLYGONACEAE v n Eriogonum covilleanum Coville's buckwheat POLYGONACEAE v n ❀ Eriogonum elongatum var. elongatum long-stem buckwheat POLYGONACEAE v n ❀ Eriogonum fasciculatum var. fasciculatum coastal California buckwheat POLYGONACEAE v n Eriogonum fasciculatum var. polifolium desert California buckwheat POLYGONACEAE v n Eriogonum gossypinum cottony buckwheat POLYGONACEAE 4.2 v n Eriogonum gracile slender wooly buckwheat POLYGONACEAE v n Eriogonum gracillimum rose-and-white buckwheat POLYGONACEAE v n Eriogonum heermannii var. heermannii Heermann's buckwheat POLYGONACEAE v n Eriogonum maculatum spotted buckwheat POLYGONACEAE v n Eriogonum nudum var. indictum Fremont's naked buckwheat POLYGONACEAE 4.2 ? n Eriogonum ordii Fort Mojave buckwheat POLYGONACEAE v n Eriogonum roseum wand buckwheat POLYGONACEAE v Scientific Name Common Name Family Rare n Eriogonum temblorense Temblor buckwheat POLYGONACEAE 1B.2 ? n Eriogonum viridescens two-toothed buckwheat POLYGONACEAE v n ❀ Eriophyllum confertiflorum var. common golden-yarrow ASTERACEAE v confertiflorum n Eriophyllum multicaule many-branched woolly-daisy ASTERACEAE v n Eriophyllum pringlei rayless woolly-daisy ASTERACEAE v i ❀ Erodium cicutarium redstem filaree GERANIACEAE v i Erodium moschatum greenstem filaree GERANIACEAE v n Erodium texanum Texas filaree GERANIACEAE v n Erysimum capitatum var. capitatum western wallflower BRASSICACEAE v n Erythranthe androsacea [Mimulus androsace monkeyflower PHRYMACEAE v androsaceus] n ❀ Erythranthe guttata [Mimulus guttatus] common monkeyflower PHRYMACEAE v n ❀ Eschscholzia caespitosa Foothill poppy PAPAVERACEAE v n California poppy PAPAVERACEAE o ❀ Eschscholzia californica n Eschscholzia hypecoides San Benito goldenpoppy PAPAVERACEAE 4.3 ? n Eschscholzia lemmonii subsp. lemmonii Lemmon's poppy PAPAVERACEAE v n ❀ Eucrypta chrysanthemifolia var. sweet eucrypta HYDROPHYLLACEAE v chrysanthemifolia n Eulobus californicus mustard primrose ONAGRACEAE v n Euphorbia ocellata [Chamaesyce ocellata] valley spurge EUPHORBIACEAE v n ❀ Euphorbia spathulata warty spurge EUPHORBIACEAE v n Festuca microstachys three-weeks fescue, small POACEAE v fescue i Festuca myuros rattail fescue POACEAE v Scientific Name Common Name Family Rare n Festuca octoflora sixweeks fescue POACEAE v n Frankenia salina alkali-heath FRANKENIACEAE v n Fritillaria agrestis stinkbells LILIACEAE 4.2 v n ❀ Fritillaria biflora var. biflora chocolate lily LILIACEAE v n Galium andrewsii prickly bedstraw RUBIACEAE v n Galium angustifolium subsp. angustifolium narrow-leaved bedstraw RUBIACEAE v n ❀ Galium aparine cleavers, common bedstraw, RUBIACEAE v goosegrass n Garrya flavescens ashy silk-tassel bush GARRYACEAE v n ❀ Gilia achilleifolia subsp. achilleifolia California gilia POLEMONIACEAE v n Gilia austro-occidentalis southwestern gilia POLEMONIACEAE v n Gilia clivorum purple-spotted gilia POLEMONIACEAE v n Gilia jacens sticky gilia POLEMONIACEAE v n Gilia latiflora subsp. cuyamensis Cuyama broad-flowered gilia POLEMONIACEAE 4.3 v n Gilia latiflora subsp. davyi Davy's broad-flowered gilia POLEMONIACEAE v n Gilia malior scrub gilia POLEMONIACEAE v n Gilia minor little gilia POLEMONIACEAE v n Gilia ochroleuca subsp. minima minimal gilia POLEMONIACEAE v n Gilia tenuiflora subsp. amplifaucalis trumpet-throated gilia POLEMONIACEAE 4.3 v n Gnaphalium palustre marsh cudweed ASTERACEAE v n Grayia spinosa spiny hop-sage CHENOPODIACEAE v n Cryptantha circumscissa cushion cryptantha BORAGINACEAE v n Gutierrezia californica California snakeweed ASTERACEAE v n salt heliotrope HELIOTROPIACEAE v ❀ Heliotropium curassavicum var. oculatum i Herniaria hirsuta var. cinerea rupturewort CARYOPHYLLACEAE v n ❀ Hesperoyucca whipplei chaparral yucca AGAVACEAE v Scientific Name Common Name Family Rare n Heterotheca sessiliflora subsp. echioides bristly goldenaster ASTERACEAE v i ❀ Hirschfeldia incana short-pod mustard, perennial BRASSICACEAE o mustard n Hollisteria lanata false spineflower POLYGONACEAE v n Holocarpha heermannii Heermann's tarweed ASTERACEAE v n Hordeum depressum low barley POACEAE v i Hordeum murinum subsp. leporinum mouse foxtail barley POACEAE v i Hornungia procumbens ovalpurse BRASSICACEAE v n Isocoma acradenia var. bracteosa alkali goldenbush ASTERACEAE v n Cryptantha micromeres minute-flowered cryptantha BORAGINACEAE v n Juncus balticus subsp. ater baltic rush JUNCACEAE v n Juncus bufonius var. bufonius common toadrush JUNCACEAE v n Juncus xiphioides iris-leaved rush JUNCACEAE v n Juniperus californica California juniper CUPRESSACEAE v n Keckiella breviflora var. breviflora white bush-penstemon PLANTAGINACEAE v n Krascheninnikovia lanata winterfat CHENOPODIACEAE v n ❀ Lagophylla ramosissima common hareleaf ASTERACEAE v i Lamium amplexicaule henbit LAMIACEAE o n Lastarriaea coriacea leather spineflower POLYGONACEAE v n Lasthenia debilis Greene's goldfields ASTERACEAE v n ❀ Lasthenia gracilis common goldfields ASTERACEAE v n Lasthenia microglossa small-rayed goldfields ASTERACEAE v n Lasthenia minor cut-leaved goldfields, coastal ASTERACEAE v goldfields n Layia glandulosa white layia ASTERACEAE v n Layia heterotricha pale-yellow layia ASTERACEAE 1B.1 v Scientific Name Common Name Family Rare n ❀ Layia platyglossa common tidytips ASTERACEAE v n Lepidium dictyotum alkali peppercress BRASSICACEAE v n ❀ Lepidium nitidum shining peppercress BRASSICACEAE v n Lepidospartum squamatum scalebroom ASTERACEAE v n Leptosiphon bicolor bicolored babystars POLEMONIACEAE v n Leptosiphon liniflorus flax-flowered babystars POLEMONIACEAE v n ❀ Leptosiphon parviflorus common babystars POLEMONIACEAE v n Leptosyne bigelovii Bigelow's tickseed ASTERACEAE v n Leptosyne calliopsidea leafy-stemmed tickseed ASTERACEAE v n Lessingia glandulifera A. Gray var. glandulifera yellow-throat lessingia ASTERACEAE v n Linanthus bigelovii subsp. johnsonii small-flowered evening snow POLEMONIACEAE v n Linanthus dichotomus subsp. dichotomus common evening snow POLEMONIACEAE v n Lithophragma affine common woodland star SAXIFRAGACEAE v n Lithophragma cymbalaria mission woodland star SAXIFRAGACEAE v n Loeflingia squarrosa American loeflingia CARYOPHYLLACEAE v n Loeseliastrum schottii Schott's calicoflower POLEMONIACEAE v n Logfia filaginoides California cotton-rose ASTERACEAE v i Logfia gallica narrow-leaved herba impia ASTERACEAE v n Lomatium macrocarpum big-fruited biscuitroot APIACEAE v n Lomatium mohavense Mojave biscuitroot APIACEAE v n ❀ Lomatium utriculatum spring gold biscuitroot APIACEAE v n Lonicera subspicata var. denudata southern chaparral CAPRIFOLIACEAE v honeysuckle n ❀ Lupinus albifrons var. albifrons common silver bush lupine FABACEAE v n Lupinus bicolor miniature lupine FABACEAE v Scientific Name Common Name Family Rare n Lupinus concinnus bajada lupine FABACEAE v n Lupinus ludovicianus San Luis Obispo lupine FABACEAE 1B.2 v n Lupinus microcarpus var. microcarpus valley chick lupine FABACEAE v n Lupinus sparsiflorus sparse-flowered lupine FABACEAE v n ❀ Lupinus succulentus arroyo lupine FABACEAE o n Lycium andersonii Anderson's wolfberry SOLANACEAE v n Madia elegans common madia ASTERACEAE v n Madia radiata showy golden madia ASTERACEAE 1B.1 v n Malacothrix californica California-dandelion ASTERACEAE v n Malacothrix clevelandii Cleveland's malacothrix ASTERACEAE v n Malacothrix coulteri snake's head ASTERACEAE v n Malacothrix floccifera woolly-tufted malacothrix ASTERACEAE v n Malacothrix glabrata desert-dandelion ASTERACEAE v n Malacothrix saxatilis var. commutata cliff malacothrix ASTERACEAE v i Malva parviflora small-flowered mallow, MALVACEAE v cheeseweed n Malvella leprosa alkali mallow MALVACEAE v n ❀ Marah fabacea manroot, wild cucumber vine CUCURBITACEAE v i ❀ Marrubium vulgare horehound LAMIACEAE v n ❀ Matricaria discoidea common pineapple-weed ASTERACEAE v n Matricaria occidentalis western pineapple-weed ASTERACEAE v n Melica californica California melic POACEAE v n Melica imperfecta little melic POACEAE v i ❀ Melilotus indicus annual sweet-clover FABACEAE o n Mentzelia affinis yellow comet blazingstar LOASACEAE v Scientific Name Common Name Family Rare n Mentzelia congesta congested blazingstar LOASACEAE v n Mentzelia gracilenta slender blazingstar LOASACEAE v n Mentzelia pectinata San Joaquin blazingstar LOASACEAE v n Mentzelia veatchiana copper blazingstar LOASACEAE v n Microseris campestris San Joaquin microseris ASTERACEAE v n Microseris douglasii subsp. douglasii Douglas's microseris ASTERACEAE v n Microsteris gracilis slender phlox POLEMONIACEAE v n ❀ Mirabilis laevis var. crassifolia California four o'clock NYCTAGINACEAE v n Monardella breweri subsp. breweri Brewer's coyote-mint LAMIACEAE v n Monolopia congdonii San Joaquin woollythreads ASTERACEAE 1B.2 v n Monolopia lanceolata common hillside dasiy ASTERACEAE v n Monolopia stricta Crum's hillside daisy ASTERACEAE v n Mucronea perfoliata perfoliate spineflower POLYGONACEAE v n ❀ Muilla maritima common muilla THEMIDACEAE v n Nama californicum lemmonia NAMACEAE v n Navarretia mitracarpa Paso Robles pincushion plant POLEMONIACEAE v n Nemacladus californicus parishiella, Mojave dwarf CAMPANULACEAE v n ❀ Nemophila menziesii baby blue eyes HYDROPHYLLACEAE v n Nemophila pulchella var. fremontii Fremont's nemophila HYDROPHYLLACEAE v n Nicotiana quadrivalvis large-flowered tobacco SOLANACEAE v n Packera breweri Brewer's ragwort ASTERACEAE v n Papaver heterophyllum wind poppy PAPAVERACEAE v n Pectocarya anisocarpa unequal combseed BORAGINACEAE v n Pectocarya linearis subsp. ferocula slender comb-seed BORAGINACEAE v n Pectocarya penicillata short-leaf combseed BORAGINACEAE v n Pectocarya setosa round combseed BORAGINACEAE v Scientific Name Common Name Family Rare n Pellaea andromedifolia coffee fern PTERIDACEAE v n Penstemon centranthifolius scarlet bugler PLANTAGINACEAE v n Pentachaeta fragilis fragile pygmydaisy, fragile ASTERACEAE 4.3 v pentachaeta n Pentagramma triangularis subsp. triangularis goldback fern PTERIDACEAE v n ❀ Perideridia pringlei adobe yampah APIACEAE 4.3 v n Peritoma arborea bladderpod CLEOMACEAE v n Phacelia affinis limestone phacelia HYDROPHYLLACEAE v n Phacelia cicutaria var. hispida caterpillar phacelia HYDROPHYLLACEAE v n Phacelia ciliata Great Valley phacelia HYDROPHYLLACEAE v n ❀ Phacelia distans fern-leaved phacelia HYDROPHYLLACEAE v n Phacelia douglasii var. douglasii common Douglas's phacelia HYDROPHYLLACEAE v n Phacelia egena narrow-sepaled rock phacelia HYDROPHYLLACEAE v n Phacelia fremontii Fremont's phacelia HYDROPHYLLACEAE v n ❀ Phacelia imbricata subsp. imbricata wide-sepaled rock phacelia HYDROPHYLLACEAE v n Phacelia tanacetifolia tansyleaf phacelia HYDROPHYLLACEAE v n Phacelia vallis-mortae San Joaquin Valley phacelia HYDROPHYLLACEAE v n Pholistoma membranaceum white fiestaflower HYDROPHYLLACEAE v n Phoradendron densum dense mistletoe VISCACEAE v n Phoradendron villosum subsp. villosum oak mistletoe VISCACEAE v n Pilularia americana American pillwort MARSILEACEAE v n Pinus monophylla one-needle pinyon pine PINACEAE v n Plagiobothrys acanthocarpus adobe popcorn flower BORAGINACEAE v n Plagiobothrys canescens valley popcorn flower BORAGINACEAE v n Plagiobothrys leptocladus alkali popcorn flower BORAGINACEAE v n Plagiobothrys tenellus slender popcorn flower BORAGINACEAE v Scientific Name Common Name Family Rare n ❀ Plantago erecta foothill plantain PLANTAGINACEAE v n ❀ Platystemon californicus cream cups PAPAVERACEAE v n Plectritis ciliosa long-spurred seablush VALERIANACEAE v n Plectritis macrocera common seablush VALERIANACEAE v i Poa bulbosa subsp. vivipara bulblet bluegrass POACEAE v n Poa secunda subsp. secunda one-sided bluegrass POACEAE v i Polypogon monspeliensis rabbitfoot grass POACEAE v n Prunus fasciculata var. fasciculata desert almond ROSACEAE v i Pseudognaphalium luteoalbum Jersey cudweed ASTERACEAE v n Pseudognaphalium stramineum cotton-batting everlasting ASTERACEAE v n Pterostegia drymarioides notchleaf POLYGONACEAE v n Quercus douglasii blue oak FAGACEAE v n Quercus john-tuckeri desert scrub oak, Tucker oak FAGACEAE v n ❀ Rafinesquia californica California-chicory ASTERACEAE v n Rhamnus ilicifolia holly-leaved redberry RHAMNACEAE v n Ribes quercetorum foothill gooseberry, yellow GROSSULARIACEAE v gooseberry n Rigiopappus leptocladus rigiopappus ASTERACEAE v n Rumex hymenosepalus canaigre, wild-rhubarb POLYGONACEAE v n Sabulina douglasii [Minuartia douglasii] Douglas's sandwort CARYOPHYLLACEAE v n Sabulina pusilla [Minuartia pusilla] miniature sandwort CARYOPHYLLACEAE v n Salix exigua var. hindsiana (Benth.) Dorn sandbar willow SALICACEAE v n Salix gooddingii western black willow SALICACEAE v i Salsola tragus Russian-thistle, tumbleweed CHENOPODIACEAE v n Salvia carduacea thistle sage LAMIACEAE v n ❀ Salvia columbariae chia LAMIACEAE v Scientific Name Common Name Family Rare n Salvia leucophylla purple sage LAMIACEAE v n ❀ Sambucus nigra subsp. caerulea blue elderberry ADOXACEAE v i Schismus arabicus Arabian Mediterranean grass POACEAE v i Schismus barbatus common Mediterranean grass POACEAE v n Senecio californicus California ragwort ASTERACEAE v n Senecio flaccidus var. douglasii shrubby groundsel, threadleaf ASTERACEAE v groundsel i Senecio vulgaris common groundsel ASTERACEAE v n Silene antirrhina sleepy catchfly CARYOPHYLLACEAE v i Sisymbrium altissimum tumble mustard BRASSICACEAE v i Sisymbrium irio London rocket BRASSICACEAE v i Sisymbrium orientale oriental hedge mustard BRASSICACEAE v n Solanum umbelliferum var. umbelliferum bluewitch nightshade SOLANACEAE v i Sonchus asper subsp. asper prickly sow-thistle ASTERACEAE v i ❀ Sonchus oleraceus common sow-thistle ASTERACEAE v n Spergularia marina salt-marsh sandspurry, sticky CARYOPHYLLACEAE v sand-spurrey n Stanleya pinnata var. pinnata prince's plume BRASSICACEAE v n Stephanomeria exigua subsp. coronaria white-plume wire-lettuce ASTERACEAE ? n Stephanomeria pauciflora desert wire-lettuce ASTERACEAE v n Stephanomeria virgata subsp. pleurocarpa wand-stem wire-lettuce ASTERACEAE v n Stipa cernua nodding needlegrass POACEAE v n Stipa speciosa desert needlegrass POACEAE v n Streptanthus anceps purple haze BRASSICACEAE v n Streptanthus californicus California jewelflower BRASSICACEAE 1B.1 v n Streptanthus inflatus desert candle BRASSICACEAE v n Streptanthus lasiophyllus California mustard BRASSICACEAE v Scientific Name Common Name Family Rare n Streptanthus lemmonii Lemmon's jewelflower BRASSICACEAE 1B.2 v n Stutzia covillei [Atriplex covillei] coville's orach CHENOPODIACEAE v n Stylocline gnaphaloides everlasting neststraw ASTERACEAE v n Suaeda nigra seepweed CHENOPODIACEAE v i Tamarix ramosissima common salt-cedar, common TAMARICACEAE v tamarisk n Thysanocarpus curvipes subsp. curvipes common fringepod BRASSICACEAE v n ❀ Thysanocarpus laciniatus narrow-leaved fringepod BRASSICACEAE v n Trichostema lanceolatum vinegar weed LAMIACEAE v n Trichostema ovatum San Joaquin bluecurls LAMIACEAE v n Trifolium albopurpureum dove clover FABACEAE v n Trifolium bifidum var. bifidum pinole clover FABACEAE v n ❀ Trifolium depauperatum var. truncatum truncate sac clover FABACEAE v n Trifolium gracilentum pinpoint clover FABACEAE v n ❀ Trifolium willdenovii tomcat clover FABACEAE v n Tropidocarpum gracile dobie-pod BRASSICACEAE v n Typha domingensis southern cattail TYPHACEAE v n ❀ Uropappus lindleyi silverpuffs ASTERACEAE v n ❀ Verbena lasiostachys var. lasiostachys western vervain VERBENACEAE v n Vicia hassei slender vetch FABACEAE v n Yabea microcarpa California hedge-parsley APIACEAE v n Zeltnera exaltata tall centaury GENTIANACEAE ?