Checklist1 of Vascular Flora of Cambria San Luis Obispo County, California (10 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 i Acacia longifolia golden wattle FABACEAE o i Acacia melanoxylon black-wood acacia FABACEAE v n Acer macrophyllum big-leaf maple SAPINDACEAE v n ❀ Achillea millefolium yarrow ASTERACEAE v n ❀ Acmispon americanus var. americanus Spanish-clover FABACEAE o n Acmispon heermannii var. orbicularis woolly deer-vetch FABACEAE v n Acmispon junceus var. junceus common rush deerweed FABACEAE v n Acmispon parviflorus miniature deervetch FABACEAE v 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 R—California Rare Plant Rank Scientific Name Common Name Family Rare n ❀ Acmispon strigosus strigose deer-vetch FABACEAE v n Acmispon wrangelianus California deervetch FABACEAE o n Agoseris apargioides var. apargioides seaside mountain-dandelion ASTERACEAE v n ❀ Agoseris grandiflora var. grandiflora large-flowered mountain- ASTERACEAE v dandelion n Agoseris hirsuta coast range mountain- ASTERACEAE v dandelion n Agrostis exarata western bentgrass, spike POACEAE v bentgrass n Agrostis pallens San Diego bentgrass POACEAE v i Aira caryophyllea silver hairgrass POACEAE v i Albizia lophantha plume-acacia FABACEAE v n Alnus rhombifolia white alder BETULACEAE v i Amaranthus deflexus large-fruited amaranth AMARANTHACEAE o n Ambrosia chamissonis beach bursage, beachbur ASTERACEAE v n Amsinckia spectabilis var. spectabilis seaside fiddleneck BORAGINACEAE v n Anaphalis margaritacea pearly everlasting ASTERACEAE v i ❀ Anthemis cotula mayweed, dog-fennel ASTERACEAE v n Aphanes occidentalis western parsley-piert ROSACEAE v n Aphyllon californicum subsp. grande California broomrape OROBANCHACEAE v n Arceuthobium campylopodum subsp. littorum coastal dwarf mistletoe VISCACEAE v n Arctostaphylos crustacea subsp. crinita Santa Cruz Mountains ERICACEAE v manzanita n Arctostaphylos cruzensis Arroyo de la Cruz manzanita ERICACEAE 1B.2 v n Arctostaphylos glandulosa subsp. Cushing manzanita ERICACEAE v cushingiana n ❀ Arctostaphylos obispoensis bishop manzanita ERICACEAE 4.3 ? n Arctostaphylos tomentosa subsp. tomentosa wooly-leaf manzanita ERICACEAE v Scientific Name Common Name Family Rare i Arctotheca prostrata creeping capeweed ASTERACEAE v n Armeria maritima subsp. californica sea-pink, thrift PLUMBAGINACEAE v n ❀ Artemisia californica California sagebrush ASTERACEAE o n ❀ Artemisia douglasiana mugwort ASTERACEAE o n Astragalus nuttallii var. nuttallii ocean bluff locoweed, ocean FABACEAE 4.2 v bluff milk-vetch n Astragalus pomonensis Pomona locoweed FABACEAE v i Atriplex semibaccata Australian saltbush CHENOPODIACEAE v n Atriplex watsonii Watson's saltbush CHENOPODIACEAE v i Avena barbata slender wild oats POACEAE v i Avena fatua common wild oats POACEAE v i Avena sativa cultivated oats POACEAE v n ❀ Baccharis glutinosa marsh baccharis ASTERACEAE v n ❀ Baccharis pilularis coyote bush ASTERACEAE v n ❀ Bloomeria crocea var. aurea common goldenstar THEMIDACEAE v n Bloomeria humilis dwarf goldenstar THEMIDACEAE 1B.2 v n Bolboschoenus robustus x B. maritimus hybrid bulrush CYPERACEAE v i Brachypodium hybridum false brome POACEAE v i ❀ Brassica nigra black mustard BRASSICACEAE v i ❀ Brassica rapa field mustard BRASSICACEAE v n Brickellia californica California brickellbush ASTERACEAE v i Briza maxima rattlesnake grass, quaking POACEAE v grass i Briza minor little quaking grass POACEAE v n Bromus carinatus var. carinatus California brome POACEAE v i Bromus catharticus var. catharticus rescue grass POACEAE v i Bromus diandrus ripgut brome POACEAE v Scientific Name Common Name Family Rare i Bromus hordeaceus soft chess brome POACEAE v i Bromus rubens red brome POACEAE o i Cakile maritima European sea rocket BRASSICACEAE v n ❀ Calandrinia menziesii [Calandrinia ciliata] red maids MONTIACEAE v i Calendula officinalis pot-marigold ASTERACEAE v n Calibrachoa parviflora wild-petunia SOLANACEAE v n Callitriche marginata California water starwort PLANTAGINACEAE v n Callitriche trochlearis effluent water starwort PLANTAGINACEAE v n ❀ Calochortus albus fairy lantern LILIACEAE v n Calochortus luteus yellow mariposa lily LILIACEAE v n ❀ Calystegia macrostegia subsp. cyclostegia coast morning glory CONVOLVULACEAE v n ❀ Calystegia subacaulis subsp. episcopalis San Luis Obispo morning CONVOLVULACEAE 4.2 v glory, Cambria morning glory n ❀ Cardamine californica milk maids, rain bells, BRASSICACEAE v California toothwort i Cardamine hirsuta hairy bittercress BRASSICACEAE v n Cardamine oligosperma little bittercress BRASSICACEAE v i ❀ Carduus pycnocephalus Italian thistle ASTERACEAE v n Carex barbarae Santa Barbara sedge CYPERACEAE v n Carex globosa round-fruited sedge CYPERACEAE v n Carex harfordii Harford's sedge CYPERACEAE v n Carex subbracteata small-bracted sedge CYPERACEAE v i ❀ Carpobrotus edulis highway iceplant AIZOACEAE o i ❀ Carthamus lanatus woolly distaff thistle ASTERACEAE v n ❀ Castilleja affinis subsp. affinis coast Indian paintbrush OROBANCHACEAE v n ❀ Castilleja densiflora subsp. obispoensis San Luis Obispo owl's-clover OROBANCHACEAE 1B.2 v Scientific Name Common Name Family Rare n Castilleja exserta subsp. exserta common owl's-clover OROBANCHACEAE v n ❀ Ceanothus cuneatus var. ramulosus coast buckbrush RHAMNACEAE v i Cenchrus clandestinus kikiyu grass POACEAE o i Cenchrus setaceus purple fountaingrass POACEAE o i ❀ Centaurea melitensis tocalote, Maltese star thistle ASTERACEAE v i Cerastium glomeratum annual mouse-ear chickweed CARYOPHYLLACEAE v i Chasmanthe floribunda South African corn-flag IRIDACEAE o i Chloris gayana Rhodes grass POACEAE v n ❀ Chlorogalum pomeridianum var. common soap plant AGAVACEAE o pomeridianum n Cicendia quadrangularis timwort GENTIANACEAE v n Cirsium brevistylum Indian thistle ASTERACEAE v n Cirsium occidentale var. compactum compact cobwebby thistle ASTERACEAE 1B.2 v i ❀ Cirsium vulgare bull thistle ASTERACEAE v n Clarkia prostrata prostrate clarkia ONAGRACEAE v n ❀ Clarkia purpurea subsp. quadrivulnera fourspot clarkia ONAGRACEAE v n Claytonia perfoliata subsp. mexicana common miner's lettuce MONTIACEAE v n ❀ Clematis ligusticifolia virgin's bower RANUNCULACEAE v n ❀ Clinopodium douglasii yerba buena LAMIACEAE v i ❀ Conium maculatum poison hemlock APIACEAE o i ❀ Convolvulus arvensis bindweed, field morning glory CONVOLVULACEAE o n ❀ Corethrogyne filaginifolia California-aster ASTERACEAE o n ❀ Cornus sericea subsp. sericea red-osier dogwood CORNACEAE v i Cortaderia jubata jubata grass POACEAE v i Cotoneaster franchetii orange cotoneaster ROSACEAE v i Cotoneaster lacteus big-leaved cotoneaster ROSACEAE v Scientific Name Common Name Family Rare i Cotoneaster pannosus silverleaf cotoneaster ROSACEAE v i Cotula australis Australian cotula ASTERACEAE v i ❀ Cotula coronopifolia brass buttons ASTERACEAE v n Crassula aquatica water pygmyweed CRASSULACEAE v n ❀ Crassula connata common pygmyweed CRASSULACEAE v i Crassula tillaea moss pygmyweed CRASSULACEAE v i Crypsis schoenoides common pricklegrass POACEAE v i Cymbalaria muralis kenilworth-ivy PLANTAGINACEAE v i Cynodon dactylon Bermuda grass POACEAE o n Cyperus eragrostis common umbrella sedge CYPERACEAE v i Dactylis glomerata orchard grass POACEAE v n Danthonia californica California oatgrass POACEAE v n Daucus pusillus American wild carrot APIACEAE v n Deinandra corymbosa central coast tarweed ASTERACEAE v n ❀ Deinandra fasciculata clustered tarweed ASTERACEAE v n ❀ Delairea odorata cape-ivy ASTERACEAE v n Delphinium californicum subsp. californicum California larkspur RANUNCULACEAE v n Deschampsia cespitosa subsp. holciformis Pacific hairgrass POACEAE v n Deschampsia danthonioides annual hairgrass POACEAE v n Deschampsia elongata slender hairgrass POACEAE v i Dimorphotheca ecklonis blue and white African daisy ASTERACEAE o n ❀ Diplacus aurantiacus var. aurantiacus common bush monkeyflower PHRYMACEAE v [Mimulus aurantiacus] i Dipsacus fullonum wild teasel DIPSACACEAE v i ❀ Dipsacus sativus fuller's teasel DIPSACACEAE v n ❀ Dipterostemon capitatus subsp. capitatus blue-dicks, schoolbells THEMIDACEAE v [Dichelostemma capitatum subsp. capitatum] Scientific Name Common Name Family Rare n Drymocallis glandulosa var. glandulosa sticky cinquefoil ROSACEAE v n Dryopteris arguta California wood fern DRYOPTERIDACEAE v n ❀ Dudleya lanceolata lance-leaf dudleya CRASSULACEAE v n Dudleya palmeri Palmer's dudleya CRASSULACEAE v i Dysphania ambrosioides Mexican-tea CHENOPODIACEAE o n Eleocharis acicularis var. acicularis needle spike-rush CYPERACEAE v n Eleocharis macrostachya common spike-rush CYPERACEAE v n Elymus condensatus giant wildrye POACEAE v n Elymus glaucus subsp. glaucus blue wildrye POACEAE o n ❀ Epilobium canum subsp. canum California-fuchsia ONAGRACEAE v n Epilobium ciliatum subsp. watsonii northern willowherb ONAGRACEAE v n Equisetum telmateia subsp. braunii giant horsetail EQUISETACEAE v i Erigeron bonariensis