Checklist1 of Vascular Flora of Bishop Peak Open Space San Luis Obispo County, California (2 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 yarrow ASTERACEAE o ❀ Achillea millefolium n blow wives ASTERACEAE o ❀ Achyrachaena mollis n Acmispon brachycarpus shortpod deervetch FABACEAE o n common deerweed FABACEAE o ❀ Acmispon glaber var. glaber n sacapelote ASTERACEAE o ❀ Acourtia microcephala 1 Please notify the author of additions or corrections to this list ([email protected]). — 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) o — observed during field surveys; no voucher specimen known Rare—California Rare Plant Rank Scientific Name Common Name Family Rare n chamise ROSACEAE o ❀ Adenostoma fasciculatum var. fasciculatum n Adiantum jordanii California maidenhair fern PTERIDACEAE v n large-flowered mountain-dandelion ASTERACEAE o ❀ Agoseris grandiflora var. grandiflora n Agrostis pallens San Diego bentgrass POACEAE o i mayweed, dog-fennel ASTERACEAE v ❀ Anthemis cotula n climbing snapdragon PLANTAGINACEAE v ❀ Antirrhinum kelloggii n Aphanes occidentalis western parsley-piert ROSACEAE o n Apiastrum angustifolium mock-celery APIACEAE o n California sagebrush ASTERACEAE o ❀ Artemisia californica n mugwort ASTERACEAE o ❀ Artemisia douglasiana n narrow-leaved milkweed APOCYNACEAE o ❀ Asclepias fascicularis n Aspidotis californica California lace fern PTERIDACEAE v i Avena barbata slender wild oats POACEAE o i Avena fatua common wild oats POACEAE v n coyote bush ASTERACEAE o ❀ Baccharis pilularis n American wintercress BRASSICACEAE o ❀ Barbarea orthoceras i Mediterranean lineseed OROBANCHACEAE o ❀ Bellardia trixago n California goosefoot CHENOPODIACEAE o ❀ Blitum californicum [Chenopodium californicum] n Bloomeria crocea var. crocea common goldenstar THEMIDACEAE o Scientific Name Common Name Family Rare i Brachypodium hybridum false brome POACEAE o i black mustard BRASSICACEAE o ❀ Brassica nigra n Brickellia californica California brickellbush ASTERACEAE o n dwarf brodiaea THEMIDACEAE o ❀ Brodiaea terrestris subsp. terrestris n Bromus carinatus var. carinatus California brome POACEAE o i Bromus diandrus ripgut brome POACEAE o i Bromus hordeaceus soft chess brome POACEAE o i Bromus madritensis foxtail chess POACEAE o i Bromus rubens red brome POACEAE o n fairy lantern LILIACEAE o ❀ Calochortus albus n coast morning glory CONVOLVULACEAE o ❀ Calystegia macrostegia subsp. cyclostegia San Luis Obispo morning glory, CONVOLVULACEAE 4.2 v n Calystegia subacaulis subsp. ❀ Cambria morning glory episcopalis milk maids, rain bells, California BRASSICACEAE v n Cardamine californica ❀ toothwort i Italian thistle ASTERACEAE o ❀ Carduus pycnocephalus i woolly distaff thistle ASTERACEAE v ❀ Carthamus lanatus n coast Indian paintbrush OROBANCHACEAE o ❀ Castilleja affinis subsp. affinis n San Luis Obispo owl's-clover OROBANCHACEAE 1B.2 o ❀ Castilleja densiflora subsp. obispoensis n coast buckbrush RHAMNACEAE o ❀ Ceanothus cuneatus var. ramulosus Scientific Name Common Name Family Rare i purple star-thistle ASTERACEAE v ❀ Centaurea calcitrapa i tocalote, Maltese star thistle ASTERACEAE o ❀ Centaurea melitensis i Cerastium glomeratum annual mouse-ear chickweed CARYOPHYLLACEAE o n birch-leaf mountain-mahogany ROSACEAE o ❀ Cercocarpus betuloides var. betuloides i Chenopodiastrum murale pigweed goosefoot CHENOPODIACEAE o [Chenopodium murale] n common soap plant AGAVACEAE o ❀ Chlorogalum pomeridianum var. pomeridianum i bull thistle ASTERACEAE o ❀ Cirsium vulgare n Clarkia affinis chaparral clarkia ONAGRACEAE v n elegant clarkia ONAGRACEAE o ❀ Clarkia unguiculata n common miner's lettuce MONTIACEAE o ❀ Claytonia perfoliata subsp. perfoliata n virgin's bower, pipestems RANUNCULACEAE v ❀ Clematis lasiantha n yerba buena LAMIACEAE o ❀ Clinopodium douglasii n common Chinese houses PLANTAGINACEAE o ❀ Collinsia heterophylla i poison hemlock APIACEAE o ❀ Conium maculatum i bindweed, field morning glory CONVOLVULACEAE o ❀ Convolvulus arvensis n California-aster ASTERACEAE o ❀ Corethrogyne filaginifolia n California rush-rose CISTACEAE o ❀ Crocanthemum scoparium Scientific Name Common Name Family Rare n turkey-mullein EUPHORBIACEAE o ❀ Croton setiger i Crypsis schoenoides common pricklegrass POACEAE o n coastal cryptantha BORAGINACEAE o ❀ Cryptantha clevelandii var. florosa n Cryptantha microstachys Tejon cryptantha BORAGINACEAE o i Cynara cardunculus subsp. artichoke, artichoke thistle ASTERACEAE o cardunculus i Dactylis glomerata orchard grass POACEAE o n Danthonia californica California oatgrass POACEAE o n Daucus pusillus American wild carrot APIACEAE o n clustered tarweed ASTERACEAE v ❀ Deinandra fasciculata n Delphinium parryi subsp. parryi Parry's larkspur RANUNCULACEAE op n blue-dicks, schoolbells THEMIDACEAE o ❀ Dipterostemon capitatus subsp. capitatus n common bush monkeyflower PHRYMACEAE o ❀ Diplacus aurantiacus var. aurantiacus n Dryopteris arguta California wood fern DRYOPTERIDACEAE v n lance-leaf dudleya CRASSULACEAE o ❀ Dudleya lanceolata n Eleocharis macrostachya common spike-rush CYPERACEAE o n Elymus condensatus giant wildrye POACEAE o n Elymus glaucus subsp. glaucus blue wildrye POACEAE o n whispering bells HYDROPHYLLACEAE o ❀ Emmenanthe penduliflora var. penduliflora n tall willow-herb ONAGRACEAE o ❀ Epilobium brachycarpum Scientific Name Common Name Family Rare n California-fuchsia ONAGRACEAE o ❀ Epilobium canum subsp. canum n Erigeron foliosus var. foliosus common leafy fleabane daisy ASTERACEAE o n long-stem buckwheat POLYGONACEAE o ❀ Eriogonum elongatum var. elongatum n Eriogonum fasciculatum var. foliolosum leafy California buckwheat POLYGONACEAE o n coastal buckwheat POLYGONACEAE o ❀ Eriogonum parvifolium n common golden-yarrow ASTERACEAE o ❀ Eriophyllum confertiflorum var. confertiflorum i storkbill filaree GERANIACEAE o ❀ Erodium botrys i redstem filaree GERANIACEAE o ❀ Erodium cicutarium i Erodium moschatum greenstem filaree GERANIACEAE o n California poppy PAPAVERACEAE o ❀ Eschscholzia californica i Eucalyptus globulus blue gum MYRTACEAE o n sweet eucrypta HYDROPHYLLACEAE o ❀ Eucrypta chrysanthemifolia var. chrysanthemifolia n warty spurge EUPHORBIACEAE o ❀ Euphorbia spathulata i Festuca myuros rattail fescue POACEAE o i Festuca perennis ryegrass POACEAE o i fennel APIACEAE o ❀ Foeniculum vulgare n California coffeeberry RHAMNACEAE o ❀ Frangula californica subsp. californica n Galium andrewsii prickly bedstraw RUBIACEAE v Scientific Name Common Name Family Rare n Galium californicum subsp. California bedstraw RUBIACEAE o californicum n Galium porrigens var. porrigens climbing bedstraw RUBIACEAE o n Pacific cudweed ASTERACEAE o ❀ Gamochaeta ustulata i Gastridium phleoides nitgrass POACEAE o i Gazania linearis treasureflower ASTERACEAE o i cut-leaved geranium GERANIACEAE o ❀ Geranium dissectum n large-headed sawtooth goldenbush ASTERACEAE o ❀ Hazardia squarrosa var. squarrosa i Hedypnois rhagadioloides Creteweed ASTERACEAE o n salt heliotrope HELIOTROPIACEAE o ❀ Heliotropium curassavicum var. oculatum i bristly oxtongue ASTERACEAE o ❀ Helminthotheca echioides n hayfield tarweed ASTERACEAE o ❀ Hemizonia congesta subsp. luzulifolia n Hesperevax sparsiflora var. sparsiflora erect evax ASTERACEAE o toyon, Christmas berry, california- ROSACEAE o n Heteromeles arbutifolia ❀ holly n telegraph weed ASTERACEAE o ❀ Heterotheca grandiflora short-pod mustard, perennial BRASSICACEAE o i Hirschfeldia incana ❀ mustard i Holcus lanatus velvetgrass POACEAE v n ocean spray, creambush ROSACEAE o ❀ Holodiscus discolor i Hordeum marinum subsp Mediterranean barley POACEAE o gussoneanum Scientific Name Common Name Family Rare i Hordeum murinum subsp. leporinum mouse foxtail barley POACEAE o i smooth cat's-ear ASTERACEAE o ❀ Hypochaeris glabra n Juncus patens spreading rush JUNCACEAE o n Koeleria macrantha Junegrass POACEAE o i Lactuca saligna slender lettuce ASTERACEAE o i prickly lettuce ASTERACEAE o ❀ Lactuca serriola i Lamarckia aurea goldentop grass POACEAE o n Pacific sweet-pea FABACEAE o ❀ Lathyrus vestitus var. vestitus n pitcher-sage LAMIACEAE v ❀ Lepechinia calycina n Lepidium strictum yellow-green peppercress BRASSICACEAE o n common babystars POLEMONIACEAE o ❀ Leptosiphon parviflorus n Lithophragma affine common woodland star SAXIFRAGACEAE v i Logfia gallica narrow-leaved herba impia ASTERACEAE o n spring gold biscuitroot APIACEAE v ❀ Lomatium utriculatum n California honeysuckle CAPRIFOLIACEAE o ❀ Lonicera hispidula n Lupinus bicolor miniature lupine FABACEAE o n stinging lupine FABACEAE o ❀ Lupinus hirsutissimus n sky lupine FABACEAE o ❀ Lupinus nanus n arroyo lupine FABACEAE o ❀ Lupinus succulentus n Lupinus truncatus chaparral lupine FABACEAE v Scientific Name Common Name Family Rare i scarlet pimpernel MYRSINACEAE o ❀ Lysimachia arvensis [Anagallis arvensis] i Malva nicaeensis bull mallow MALVACEAE v i Malva parviflora small-flowered mallow, cheeseweed MALVACEAE o n manroot, wild cucumber vine CUCURBITACEAE o ❀ Marah fabacea n common pineapple-weed ASTERACEAE o ❀ Matricaria discoidea i Medicago polymorpha California bur-clover