Checklist of Vascular Calf Canyon and Vicinity November 2011

PREPARED BY DAVID J. KEIL, BIOLOGICAL SCIENCES DEPARTMENT, 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 *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- *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- 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 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 fitchii Fitch’s spikeweed ASTERACEAE [ f.] Centromadia pungens common spikeweed ASTERACEAE [Hemizonia p.] Chaenactis glabriuscula yellow pincushion ASTERACEAE Chenopodium berlandieri pit- 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 Dichelostemma capitatum blue dicks THEMIDACEAE Dodecatheon clevelandii shooting star PRIMULACEAE chrysantha golden eardrops PAPAVERACEAE [ 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 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] glandulosa white layia ASTERACEAE hawkweed layia ASTERACEAE Sierra layia ASTERACEAE 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 californicum] Linanthus parryae Parry's sandblossoms POLEMONIACEAE Lithraphragma cymbalaria woodland stars SAXIFRAGACEAE filaginoides California herba impia ASTERACEAE [ californica] Logfia gallica [Filago gallica] narrow-leaved herba ASTERACEAE impia Lomatium caruifolium biscuit root APIACEAE Lomatium utriculatum biscuit root APIACEAE Lonicera interrupta chaparral honeysuckle CAPRIFOLIACEAE albifrons white- bush lupine FABACEAE Lupinus bicolor miniature lupine FABACEAE Lupinus concinnus bajada lupine FABACEAE Lupinus hirsutissimus stinging lupine FABACEAE Lupinus truncatus collared lupine FABACEAE Madia elegans common madia ASTERACEAE Madia exigua thread-stem madia ASTERACEAE Madia gracilis slender madia ASTERACEAE Malacothamnus jonesii11 Jones’s bush mallow MALVACEAE Marah fabaceus Wild cucumber-vine CUCURBITACEAE Melica imperfecta melic grass POACEAE Mentzelia micrantha Velcro plant LOASACEAE Micranthes californica California saxifrage SAXIFRAGACEAE [Saxifraga c.] Microsteris gracilis [Phlox g.] miniature phlox POLEMONIACEAE Mimulus aurantiacus bush monkey flower PHRYMACEAE Mimulus floribundus slimy monkey flower PHRYMACEAE Mimulus fremontii Fremont’s monkeyflower PHRYMACEAE Mimulus guttatus common monkeyflower PHRYMACEAE Mimulus pilosus downy monkeyflower PHRYMACEAE Minuartia douglasii Douglas’s sandwort CARYOPHYLLACEAE Mucronea perfoliata Perfoliate spineflower POLYGONACEAE Navarretia atractyloides holly-leaved navarretia POLEMONIACEAE Nemophila pedunculata littlefoot nemophila BORAGINACEAE Nicotiana acuminata sticky tobacco SOLANACEAE Nicotiana quadrivalvis large-flowered tobacco SOLANACEAE Nuttallanthus texanus blue toad-flax PLANTAGINACEAE [Linaria canadensis var. t.]

10 California Rare Plant Rank 4.3 11 California Rare Plant Rank 4.3 Checklist—Calf Canyon and Vicinity 7

Scientific Name1,2 Common name Family Orobanche uniflora one-flowered broomrape OROBANCHACEAE Paeonia californica California peony PAEONIACEAE Papaver californicum fire poppy PAPAVERACEAE Papaver heterophylllum wind poppy PAPAVERACEAE [Stylomecon h.] Pectocarya penicillata comb-seed BORAGINACEAE Pedicularis densiflora Indian warrior OROBANCHACEAE Pellaea andromedifolia coffee fern PTERIDACEAE Pellaea mucronata bird’s foot fern PTERIDACEAE Penstemon centranthifolius scarlet bugler PLANTAGINACEAE Penstemon heterophyllus chaparral penstemon PLANTAGINACEAE Pentagramma triangularis gold-back fern PTERIDACEAE Phacelia brachyloba yellow-throat phacelia BORAGINACEAE Phacelia distans fern-leaf phacelia BORAGINACEAE Phacelia rattanii Rattan’s phacelia BORAGINACEAE Pholistoma auritum fiesta flower BORAGINACEAE Phoradendron macrophylum12 common mistletoe VISCACEAE Phoradendron tomentosum13 oak mistletoe VISCACEAE Pinus sabiniana foothill pine PINACEAE Plagiobothrys canescens valley popcorn flower BORAGINACEAE Plagiobothrys nothofulvus common popcorn flower BORAGINACEAE Plagiobothrys tenellus slender popcorn flower BORAGINACEAE Plantago erecta annual plantain PLANTAGINACEAE Platystemon californicus cream cups PAPAVERACEAE Plectritis ciliosa plectritis VALERIANACEAE Poa secunda one-sided bluegrass POACEAE Populus fremontii Fremont Cottonwood SALICACEAE Prunus ilicifolia holly-leaf cherry ROSACEAE Pseudognaphalium beneolens fragrant everlasting ASTERACEAE [Gnaphalium canescens var. b.] Pseudognaphalium californicum California everlasting ASTERACEAE [Gnaphalium californicum] Pterostegia drymarioides notchleaf POLYGONACEAE Quercus agrifolia coast live oak FAGACEAE Quercus berberidifolia scrub oak FAGACEAE Quercus douglasii blue oak FAGACEAE Quercus lobata valley oak FAGACEAE Ranunculus californicus California buttercup RANUNCULACEAE Ranunculus hebecarpus slender annual buttercup RANUNCULACEAE

12 Phoradendron serotinum subsp. macrophyllum in Jepson Manual, 2nd edition 13 Phoradendron serotinum subsp. tomentosum in Jepson Manual, 2nd edition Checklist—Calf Canyon and Vicinity 8

Scientific Name1,2 Common name Family Rhamnus ilicifolia holly-leaf red berry RHAMNACEAE Rhus aromatica [R. trilobata] skunk bush ANACARDIACEAE indecorum white chaparral currant GROSSULARIACEAE Ribes malvaceum common chaparral GROSSULARIACEAE currant Rosa californica California wild rose ROSACEAE Salix exigua sandbar willow SALICACEAE Salix laevigata red willow SALICACEAE Salix lasiolepis arroyo willow SALICACEAE Salvia columbariae chia LAMIACEAE Salvia mellifera black sage LAMIACEAE Sambucus nigra subsp. caerulea elderberry ADOXACEAE [S. mexicana] Sanicula crassicaulis common sanicle APIACEAE Scutellaria tuberosa skullcap LAMIACEAE Solanum xanti purple nightshade SOLANACEAE Stachys albens woolly hedge-nettle LAMIACEAE Stephanomeria exigua white-plume wire-lettuce ASTERACEAE subsp. coronaria Stipa cernua [Nassella c.] purple needle grass POACEAE Stipa lepida [Nassella l.] slender needlegrass POACEAE gnaphaloides everlasting nest straw ASTERACEAE Thysanocarpus laciniatus lace pod BRASSICACEAE Toxicodendron diversilobum poison-oak ANACARDIACEAE Toxicoscordion fremontii death-camas MELANTHIACEAE Toxicoscordion venenosum death-camas MELANTHIACEAE Trichostemma lanatum woolly blue-curls LAMIACEAE Trifolium gracilentum pinpoint clover FABACEAE Trifolium obtusiflorum creek clover FABACEAE Trifolium willdenovii tomcat clover FABACEAE Uropappus lindleyi silverpuffs ASTERACEAE Urtica dioica subsp. holosericea stinging nettle URTICACEAE Verbena lasiostachys vervain VERBENACEAE Viola pedunculata Johnny jump-up VIOLACEAE

References Baldwin, B. G., D. H. Goldman, D. J Keil, R. Patterson, and T. J. Rosatti (eds.). 2012. THE JEPSON MANUAL. VASCULAR PLANTS OF CALIFORNIA, 2nd ed. University of California Press, Berkeley, Los Angeles, and London. 1600 pp. California Native Plant Society (CNPS). 2011. INVENTORY OF RARE AND ENDANGERED PLANTS (online edition, v8-01a). California Native Plant Society. Sacramento, CA. http://www.rareplants.cnps.org/ Checklist—Calf Canyon and Vicinity 9

Hickman, J. C. (ed.) 1993. THE JEPSON MANUAL. HIGHER PLANTS OF CALIFORNIA. University of California Press, Berkeley, Los Angeles, and London. Hoover, R.F. 1970. The Vascular plants of San Luis Obispo County, California. University of California Press, Berkeley, Los Angeles, and London.