Checklist of Vascular Plants Calf Canyon and Vicinity November 2011 PREPARED BY DAVID J. KEIL, BIOLOGICAL SCIENCES DEPARTMENT, CALIFORNIA POLYTECHNIC STATE UNIVERSITY, SAN LUIS OBISPO Scientific Name1,2 Common name Family *Aira caryophyllea European hairgrass POACEAE *Anagallis arvensis scarlet pimpernel MYRSINACEAE *Anthriscus caucalis bur chervil APIACEAE *Avena barbata slender wild oats POACEAE *Avena fatua common wild oats POACEAE *Brassica nigra black mustard BRASSICACEAE *Bromus diandrus rip-gut brome POACEAE *Bromus hordeaceus soft chess brome POACEAE *Bromus rubens3 red brome POACEAE *Carduus pycnocephalus Italian thistle ASTERACEAE *Centaurea benedicta blessed thistle ASTERACEAE [Cnicus benedictus] *Cerastium glomeratum mouse-ear chickweed CARYOPHYLLACEAE *Conium maculatum poison hemlock APIACEAE *Crassula tillaea moss pygmy weed CRASSULACEAE *Erodium botrys stork-bill filaree GERANIACEAE *Erodium cicutarium red stem filaree GERANIACEAE *Festuca myuros [Vulpia m.] rattail fescue POACEAE *Festuca perennis annual rye grass POACEAE [Lolium multiflorum] *Hirschfeldia incana short-pod mustard BRASSICACEAE *Hordeum murinum annual foxtail barley POACEAE *Juncus bufonius var. congestus Congested toad rush JUNCACEAE *Lamium amplexicaule henbit LAMIACEAE *Matricaria discoidea pineapple weed ASTERACEAE [Chamomilla suaveolens] *Medicago polymorpha bur-clover FABACEAE *Melilotus indicus sour-clover FABACEAE *Polypogon monspeliensis rabbitfoot grass POACEAE *Raphanus raphanistrum jointed wild radish BRASSICACEAE 1 Nomenclature (except as noted) follows the second edition of THE JEPSON MANUAL (Baldwin et al. 2012) 2 Names in brackets were used in the first edition of THE JEPSON MANUAL (Hickman 1993) 3 Bromus madritensis subsp. rubens in Jepson Manual, 2nd edition Checklist—Calf Canyon and Vicinity 2 Scientific Name1,2 Common name Family *Rumex crispus curly dock POLYGONACEAE *Rumex kerneri Kerner’s dock POLYGONACEAE *Sagina apetala dwarf pearlwort CARYOPHYLLACEAE *Schismus barbatus Mediterranean grass POACEAE *Silene coniflora [S. multinervia] many-nerved catchfly CARYOPHYLLACEAE *Stellaria media common chickweed CARYOPHYLLACEAE *Vicia villosa purple vetch FABACEAE Achillea millefolium common yarrow ASTERACEAE Acmispon americanus Spanish-clover FABACEAE [Lotus purshianus] Acmispon brachycarpus foothill deervetch FABACEAE [Lotus humistratus] Acmispon glaber deerweed FABACEAE [Lotus scoparius] Acmispon strigosus [Lotus s.] strigose deervetch FABACEAE Acourtia microcephala sacapelote ASTERACEAE Adenostoma fascicuatum chamise ROSACEAE Adiantum jordanii California maidenhair PTERIDACEAE fern Agoseris grandiflora mountain-dandelion ASTERACEAE Amorpha californica false indigo FABACEAE Amsinckia douglasiana Douglas fiddleneck BORAGINACEAE Amsinckia menziesii fiddleneck BORAGINACEAE Antirrhinum kelloggii vining snapdragon PLANTAGINACEAE Antirrhinum multiflorum Bush snapdragon PLANTAGINACEAE Aphanes occidentalis western lady's mantle ROSACEAE Apiastrum angustifolium California wild-celery APIACEAE Arceuthobium campylopodum pine mistletoe VISCACEAE Arctostaphylos glauca big-berry manzanita ERICACEAE Artemisia californica California sagebrush ASTERACEAE Artemisia douglasiana mugwort ASTERACEAE Artemisia dracunculus wild tarragon ASTERACEAE Asclepias vestita milkweed APOCYNACEAE Astragalus douglasii Douglas’s milk-vetch FABACEAE Athysanus pusillus sandweed BRASSICACEAE Baccharis pilularis coyote bush ASTERACEAE Baccharis salicifolia mule fat ASTERACEAE Barbarea orthoceras wintercress BRASSICACEAE Bowlesia incana American bowlesia APIACEAE Calandrinia breweri4 Brewer's calandrinia MONTIACEAE Calandrinia ciliata red maids MONTIACEAE 4 California Rare Plant Rank 4.2 Checklist—Calf Canyon and Vicinity 3 Scientific Name1,2 Common name Family Calochortus albus fairy lantern LILIACEAE Calyptridium monandrum common calyptridium MONTIACEAE Calystegia longipes Paiute morning-glory CONVOLVULACEAE Calystegia malacophylla Sierra morning-glory CONVOLVULACEAE Camissonia strigulosa slender sun cups ONAGRACEAE Camissoniopsis hardhamiae5 sun cups ONAGRACEAE Camissoniopsis hirtella sun cups ONAGRACEAE Castilleja attenuata Slender owl's clover OROBANCHACEAE Castilleja exserta subsp. exserta common owl’s clover OROBANCHACEAE Castilleja minor subsp. spiralis annual Indian paintbrush OROBANCHACEAE Caulanthus lasiophyllus California mustard BRASSICACEAE [Guillenia l.] Ceanothus cuneatus California lilac RHAMNACEAE Ceanothus leucodermis chaparral white-thorn RHAMNACEAE Centromadia fitchii Fitch’s spikeweed ASTERACEAE [Hemizonia f.] Centromadia pungens common spikeweed ASTERACEAE [Hemizonia p.] Chaenactis glabriuscula yellow pincushion flower ASTERACEAE Chenopodium berlandieri pit-seed goosefoot CHENOPODIACEAE var. zschackei Chenopodium californicum California goosefoot CHENOPODIACEAE Chenopodium praetericola narrow-leaved goosefoot CHENOPODIACEAE Chlorogalum pomeridianum soap plant AGAVACEAE var. pomeridianum Chorizanthe rectispina6 straight-awned POLYGONACEAE spineflower Chorizanthe staticoides Turkish rugging POLYGONACEAE Cirsium occidentale var. western thistle ASTERACEAE venustum Clarkia cylindrica speckled clarkia ONAGRACEAE Clarkia modesta modest clarkia ONAGRACEAE Clarkia purpurea subsp. four-spot ONAGRACEAE quadrivulnera Clarkia speciosa subsp. speciosa Showy clarkia ONAGRACEAE Clarkia unguiculata elegant clarkia ONAGRACEAE Claytonia parviflora miner's lettuce MONTIACEAE Claytonia perfoliata miner's lettuce MONTIACEAE Collinsia bartsiifolia Chinese houses PLANTAGINACEAE var. davidsonii 5 California Rare Plant Rank 1B.2 6 California Rare Plant Rank 1B.3 Checklist—Calf Canyon and Vicinity 4 Scientific Name1,2 Common name Family Cordylanthus rigidus thread-leaved bird’s beak OROBANCHACEAE subsp. rigidus Corethrogyne filaginifolia California-aster ASTERACEAE [Lessingia f.] Crassula connata common pygmy weed CRASSULACEAE Cryptantha clevelandii cryptantha BORAGINACEAE Cryptantha microstachys cryptantha BORAGINACEAE Cuscuta californica California dodder CONVOLVULACEAE Cuscuta subinclusa canyon dodder CONVOLVULACEAE Daucus pusillus annual wild carrot APIACEAE Deinandra kelloggii Salinas valley tarweed ASTERACEAE [Hemizonia k.] Deinandra pentactis Salinas valley tarweed ASTERACEAE [Hemizonia p.] Delphinium parryi subsp. parryi larkspur RANUNCULACEAE Dendromecon rigida bush poppy PAPAVERACEAE Dichelostemma capitatum blue dicks THEMIDACEAE Dodecatheon clevelandii shooting star PRIMULACEAE Ehrendorferia chrysantha golden eardrops PAPAVERACEAE [Dicentra c.] Elymus condensatus [Leymus c.] giant rye POACEAE Emmenanthe penduliflora whispering bells BORAGINACEAE Epilobium canum California-fuchsia ONAGRACEAE Epilobium densiflorum spike-primrose ONAGRACEAE Eriastrum luteum7 yellow woolly-star POLEMONIACEAE Ericameria linearifolia interior golden bush ASTERACEAE Erigeron canadensis [Conyza c.] horseweed ASTERACEAE Erigeron foliosus var. foliosus leafy fleabane ASTERACEAE Eriodictyon tomentosum Woolly yerba santa BORAGINACEAE Eriogonum elegans wild buckwheat POLYGONACEAE Eriogonum elongatum var. elongate buckwheat POLYGONACEAE elongatum Eriogonum fasciculatum California buckwheat POLYGONACEAE Eriogonum gracile var. gracile Slender buckwheat POLYGONACEAE Eriogonum roseum wild buckwheat POLYGONACEAE Eriophyllum confertiflorum var. golden-yarrow ASTERACEAE confertiflorum Eriophyllum multicaule Tufted woolly-daisy ASTERACEAE Erysimum capitatum western wallflower BRASSICACEAE Eschscholzia caespitosa Tufted golden poppy PAPAVERACEAE Eschscholzia califomica California poppy PAPAVERACEAE Eucrypta chrysanthemifolia sweet eucrypta BORAGINACEAE 7 California Rare Plant Rank 1B.2 Checklist—Calf Canyon and Vicinity 5 Scientific Name1,2 Common name Family Eulobus californicus sun cups ONAGRACEAE [Camissonia californica] Festuca microstachys [Vulpia m.] annual fescue POACEAE Festuca octoflora [Vulpia o.] six-weeks fescue POACEAE Frangula californica coffee berry RHAMNACEAE [Rhamnus c.] Fremontodendron californicum flannelbush MALVACEAE Galium andrewsii prickly bedstraw RUBIACEAE Galium aparine common bedstraw RUBIACEAE Galium porrigens climbing bedstraw RUBIACEAE Gilia achilleifolia California gilia POLEMONIACEAE Gilia clivorum purple-spotted gilia POLEMONIACEAE Gilia tenuiflora trumpet-throated gilia POLEMONIACEAE subsp. amplifaucalis8 Gnaphalium palustre cudweed ASTERACEAE Helianthemum scoparium rush-rose CISTACEAE Helianthus bolanderi Bolander’s sunflower ASTERACEAE Hesperevax acaulis dwarf evax ASTERACEAE Hesperomecon linearis carnival poppy PAPAVERACEAE [Meconella l.] Hesperoyucca whipplei chaparral yucca AGAVACEAE Heteromeles arbutifolia toyon ROSACEAE Heterotheca sessiliflora goldenaster ASTERACEAE subsp. echioides Horkelia yadonii9 Yadon’s Horkelia ROSACEAE Juncus bufonius var. bufonius Common toad rush JUNCACEAE Juncus bufonius Western toad rush JUNCACEAE var. sphaerocarpus Juncus macrophyllus long-leaved rush JUNCACEAE Juncus tiehmii Tiehm's dwarf rush JUNCACEAE Lagophylla ramosissima hareleaf ASTERACEAE Lasthenia gracilis common goldfields ASTERACEAE [L. californica, in part] Layia glandulosa white layia ASTERACEAE Layia hieracioides hawkweed layia ASTERACEAE Layia pentachaeta Sierra layia ASTERACEAE Layia platyglossa tidy tips ASTERACEAE Lessingia pectinata var. tenuipes lessingia ASTERACEAE [Lessingia glandulifera var. glandulifera] 8 California Rare Plant Rank 4.3 9 California Rare Plant Rank 4.3 Checklist—Calf Canyon and Vicinity 6 Scientific Name1,2 Common name Family Lessingia tenuis10 spring lessingia ASTERACEAE Linanthus californicus prickly phlox POLEMONIACEAE [Leptodactylon