Plant species observed on the Via Princessa Road Extension site survey dates April 6 and 20, May 18, and June 11, 2010 Plant species observed on the Via Princessa Extension site; survey dates April 6 and 20, May 18, and June 11, 2010
Arial font indicates non-native taxa
Underlined font indicates special-status taxa
FERNS AND FERN ALLIES Eriophyllum confertiflorum var. confertiflorum (golden yarrow) Gnaphalium palustre (western marsh cudweed) Selaginellaceae (spike-moss family) Helianthus gracilentus (slender sunflower) Heterotheca grandiflora (telegraph weed) Selaginella bigelovii (Bigelow’s spike-moss) Lasthenia californica (coast goldfields) DICOTS Logfia filaginoides (California cottonrose) Microseris douglasii ssp. douglasii (Douglas’s Adoxaceae (moschatel family) silverpuffs) Psilocarphus brevissimus var. brevissimus (dwarf Sambucus nigra ssp. caerulea (blue elderberry) wooly-heads) Amaranthaceae (amaranth family) Rafinesquia californica (California chicory) Sonchus oleraceus (common sow thistle) Chenopodium californicum (California goosefoot) Stephanomeria exigua (small wirelettuce) Stephanomeria pauciflora (wire-lettuce) Anacardiaceae (sumac family) Stephanomeria virgata (twiggy wreathplant) Stylocline gnaphaloides (everlasting nest-straw) Rhus aromatica (skunk bush) Tetradymia canescens (spineless horsebrush) Toxicodendron diversilobum (poison-oak) Uropappus lindleyi (silverpuffs) Apiaceae (carrot family) Boraginaceae (borage family) Lomatium californicum (California biscuitroot) Amsinckia menziesii var. intermedia (rancher’s Lomatium utriculatum (common lomatium) fireweed) Asteraceae (sunflower family) Eriodictyon crassifolium (thick-leaved yerba santa) Eucrypta chrysanthemifolia (spotted hideseed) Acourtia microcephala (scapellote) Pectocarya linearis ssp. ferocula (slender Ambrosia acanthicarpa (annual bur-sage) combseed) Ancistrocarphus filagineus (wooly fishhooks) Plagiobothrys canescens (valley popcorn-flower) Artemisia californica (California sagebrush) Brassicaceae (mustard family) Artemisia tridentata ssp. tridentata (big sagebrush) Baccharis salicifolia (mulefat) Hirschfeldia incana (short-pod mustard) Carduus pycnocephalus (Italian thistle) Sisymbrium orientale (eastern rocket) Centaurea melitensis (tocolote) Cirsium occidentale var. californicum (California Cactaceae (cactus family) thistle) Corethrogyne filaginifolia (California aster) Opuntia basilaris var. basilaris (beavertail cactus) Deinandra fasciculata (clustered tarplant) Caryophyllaceae (pink family) Ericameria pinifolia (pine-leaf goldenbush) Erigeron foliosus var. foliosus (fleabane aster) Stellaria media (common chickweed) Convolvulaceae (morning-glory Salvia apiana (white sage) Salvia columbariae var. columbariae (chia) family) Salvia leucophylla (purple sage) Salvia mellifera (black sage) Calystegia macrostegia ssp. cyclostegia (coastal Trichostema lanatum (wooly bluecurls) chaparral morning-glory) Calystegia peirsonii (Peirson’s morning-glory) – Malvaceae (mallow family) CNPS List 4.2 Cuscuta californica (chaparral dodder) Malacothamnus marrubioides (pink-flowered bushmallow) Crassulaceae (stonecrop family) Nyctaginaceae (four o’clock family) Crassula connata (pigmy weed) Dudleya lanceolata (lance-leaved dudleya) Mirabilis laevis var. crassifolia (California wishbone bush) Cucurbitaceae (gourd family) Onagraceae (evening-primrose family) Marah macrocarpus (manroot) Camissonia californica (California suncups) Euphorbiaceae (spurge family) Camissonia micrantha (miniature suncup) Clarkia purpurea ssp. quadrivulnera (winecup Chamaesyce albomarginata (rattlesnake weed) clarkia) Croton setigerus (turkey mullein) Epilobium pygmaeum (vernal pool boisduvalia) Ricinus communis (castor-bean) Fabaceae (legume family) Papaveraceae (poppy family) Eschscholzia californica (California poppy) Astragalus trichopodus (Santa Barbara milkvetch) Lotus salsuginosus (coastal bird's-foot trefoil) Polemoniaceae (phlox family) Lotus scoparius var. scoparius (deerweed) Lotus strigosus (bishop’s lotus) Navarretia fossalis (Moran’s nosegay)—federal Lupinus bicolor (miniature lupine) Threatened; CNPS List 1B.1 Lupinus hirsutissimus (stinging lupine) Polygonaceae (buckwheat family) Lupinus sparsiflorus (few-flowered lupine) Lupinus truncatus (blunt-leaved lupine) Chorizanthe staticoides (Turkish rugging) Medicago polymorpha (burclover) Eriogonum fasciculatum (California buckwheat) Melilotus indicus (yellow sweet-clover) Trifolium hirtum (rose clover) Portulacaceae (purslane family)
Fagaceae (oak family) Claytonia perfoliata (miner’s-lettuce)
Quercus agrifolia var. agrifolia (coast live oak) Rhamnaceae (buckthorn family)
Geraniaceae (geranium family) Ceanothus crassifolius (hoaryleaf ceanothus) Erodium cicutarium (red-stem filaree) Ceanothus cuneatus (buckbrush) Rhamnus crocea (redberry) Grossulariaceae (gooseberry family) Rosaceae (rose family) Ribes aureum (golden currant) Ribes malvaceum (chaparral currant) Adenostoma fasciculatum (chamise) Cercocarpus betuloides var. betuloides (mountain Lamiaceae (mint family) mahogony) Heteromeles arbutifolia (toyon) Marrubium vulgare (horehound) Prunus ilicifolia ssp. ilicifolia (hollyleaf cherry) Salicaceae (willow family) Juncus mexicanus (Mexican wire rush) Liliaceae (lily family) Populus fremontii ssp. fremontii (Fremont cottonwood) Calochortus clavatus var. gracilis (slender Salix lasiolepis (arroyo willow) mariposa lily)—CNPS List 1B.2 Scrophulariaceae (figwort family) Calochortus splendens (splendid mariposa lily) Calochortus venustus (butterfly mariposa lily) Castilleja exserta ssp. exserta (purple owl’s-clover) Poaceae (grass family) Solanaceae (nightshade family) Avena barbata (slender oat) Nicotiana glauca (tree tobacco) Bromus diandrus (ripgut brome) Bromus hordeaceus (soft chess) Solanum xanti (chaparral nightshade) Bromus madritensis ssp. rubens (red brome) MONOCOTS Deschampsia danthonioides (annual hairgrass) Leymus condensatus (giant wildrye) Agavaceae (agave family) Melica imperfecta (Coast Range melic) Nassella lepida (foothill needlegrass) Chlorogalum pomeridianum var. pomeridianum Nassella pulchra (purple needlegrass) (wavy-leaf soap plant) Poa secunda ssp. secunda (one-sided bluegrass) Yucca whipplei (Whipple’s yucca) Schismus arabicus (Arabian splitgrass) Vulpia myuros (mouse-tail fescue) Cyperaceae (sedge family) Themidaceae (brodiaea family) Eleocharis macrostachya (longstem spikerush) Bloomeria crocea (common goldenstar) Iridaceae (iris family) Dichelostemma capitatum (bluedicks)
Sisyrinchium bellum (blue-eyed-grass) Juncaceae (rush family)
Juncus bufonius var. occidentalis (western toad rush)