Santa Monica Mountains National Recreation Area Vascular Plant Species List (as derived from NPSpecies 18 Dec 2006) FAMILY NAME Scientific Name (Common Name) (* = non-native) - [Abundance] ASPLENIACEAE AIZOACEAE Asplenium vespertinum (spleenwort) - [Rare] Carpobrotus edulis (hottentot-fig) * - [Common] Galenia pubescens * - [Rare] AZOLLACEAE Malephora crocea * - [Uncommon] Azolla filiculoides (duck fern, mosquito fern) - [Rare] Mesembryanthemum crystallinum (common ice plant) * - [Common] BLECHNACEAE Mesembryanthemum nodiflorum (slender-leaved ice plant) * Woodwardia fimbriata (chain fern) - [Uncommon] - [Uncommon] DENNSTAEDTIACEAE Tetragonia tetragonioides (New Zealand-spinach) * - Pteridium aquilinum var. pubescens (western bracken) - [Uncommon] [Uncommon] AMARANTHACEAE DRYOPTERIDACEAE Amaranthus albus (tumbleweed) - [Common] Dryopteris arguta (coastal woodfern) - [Common] Amaranthus blitoides (prostrate pigweed) * - [Common] Amaranthus californicus (California amaranth) - [Uncommon] EQUISETACEAE Amaranthus deflexus (low amaranth) * - [Uncommon] Equisetum arvense - [Uncommon] Amaranthus powellii - [Unknown] Equisetum hyemale ssp. affine (common scouring rush) - Amaranthus retroflexus (rough pigweed) * - [Common] [Uncommon] Equisetum laevigatum (smooth scouring-rush) - [Uncommon] ANACARDIACEAE Equisetum telmateia ssp. braunii (giant horsetail) - Malosma laurina (laurel sumac) - [Common] [Uncommon] Rhus integrifolia (lemonadeberry) - [Common] Equisetum X ferrissi ((sterile hybrid)) - [Unknown] Rhus ovata (sugar bush) - [Common] Rhus trilobata var. pilosissima (squaw bush) - [Common] POLYPODIACEAE Schinus molle (Peruvian-pepper) * - [Uncommon] Polypodium californicum (polypody) - [Common] Schinus terebinthifolius (Brazilian pepper tree) * - [Uncommon] PTERIDACEAE Toxicodendron diversilobum (poison-oak) - [Common] Adiantum capillus-veneris (venus-hair fern) - [Uncommon] Adiantum jordanii (Calfornia maidenhair fern) - [Uncommon] APIACEAE Aspidotis californica (California lace fern) - [Rare] Angelica tomentosa (woolly angelica) * - [Uncommon] Cheilanthes cooperae (Cooper's lip fern) - [Rare] Anthriscus caucalis (bur-chevil) * - [Unknown] Cheilanthes covillei (Coville's lip fern) - [Rare] Apiastrum angustifolium (wild-celery) - [Uncommon] Cheilanthes newberryi (cotton fern) - [Rare] Apium graveolens (celery) * - [Uncommon] Notholaena californica ssp. leucophylla (cloak fern) - [Rare] Berula erecta (water parsnip) - [Rare] Pellaea andromedifolia (coffee fern) - [Common] Bowlesia incana (bowlesia) - [Uncommon] Pellaea mucronata (bird's foot fern) - [Common] Ciclospermum leptophyllum (marsh parsley) * - [Uncommon] Pentagramma triangularis ssp. triangularis (goldback fern) - Conium maculatum (poison-hemlock) * - [Uncommon] [Common] Daucus pusillus (rattlesnake weed) - [Common] Foeniculum vulgare (fennel) * - [Common] SELAGINELLACEAE Hydrocotyle moschata * - [Rare] Selaginella bigelovii (spike moss) - [Common] Hydrocotyle ranunculoides (marsh pennywort) - [Unknown] Hydrocotyle umbellata (many-flowered marsh-pennywort) - THELYPTERIDACEAE [Uncommon] Thelypteris puberula var. sonorensis (downy woodfern) - Hydrocotyle verticillata (whorled pennywort) - [Unknown] [Rare] Lomatium dasycarpum ssp. dasycarpum (woolly lomatium) - CUPRESSACEAE [Common] Juniperus californica (juniper) - [Rare] Lomatium lucidum (shiny lomatium) - [Common] Lomatium utriculatum (hog fennel) - [Uncommon] ACERACEAE Oenanthe sarmentosa (dropwort) - [Uncommon] Acer macrophyllum (bigleaf maple, canyon maple) - Osmorhiza brachypoda (sweet-cicely) - [Rare] [Uncommon] Sanicula arguta (snake root) - [Common] Acer negundo var. californicum (box-elder) * - [Uncommon] Sanicula bipinnata (poison sanicle) - [Uncommon] Sanicula crassicaulis (Pacific sanicle) - [Uncommon] AIZOACEAE Sanicula tuberosa (turkey pea) - [Common] Aptenia cordifolia (ice plant) * - [Uncommon] Scandix pecten-veneris (shepherd's needle) * - [Rare] Carpobrotus chilensis (sea-fig) * - [Uncommon] CATEGORY DEFINITION Abundance Abundant Large number of individuals; wide ecological amplitude or occurring in habitats covering a large portion of the park. Common Large numbers of individuals predictably occurring in commonly encountered habitats but not those covering a large portion of the park. Uncommon Few to moderate numbers of individuals; occurring either sporadically in commonly encountered habitats or in uncommon habitats. Rare Few individuals, usually restricted to small areas of rare habitat. Unknown Abundance is unknown. 1 Santa Monica Mountains National Recreation Area Vascular Plant Species List (as derived from NPSpecies 18 Dec 2006) FAMILY NAME Scientific Name (Common Name) (* = non-native) - [Abundance] APIACEAE ASTERACEAE Tauschia arguta (southern tauschia) - [Common] Brickellia californica (California brickellbush) - [Common] Tauschia hartwegii (Hartweg's tauschia) - [Uncommon] Brickellia nevinii (Nevin's brickellbush) - [Uncommon] Torilis arvensis (spreading hedge parsley) * - [Common] Carduus pycnocephalus (Italian thistle) * - [Common] Torilis nodosa (knotted hedge parsley) * - [Rare] Centaurea calcitrapa * - [Unknown] Yabea microcarpa (California hedge parsley) - [Rare] Centaurea melitensis (tocalote, yellow starthistle) * - [Common] APOCYNACEAE Centaurea solstitialis (Barneby's-thistle) * - [Uncommon] Apocynum cannabinum (dogbane) - [Rare] Centromadia pungens (common spikeweed) - [Rare] Vinca major (periwinkle) * - [Uncommon] Centromadia pungens ssp. laevis - [Rare] Centromadia pungens ssp. pungens - [Unknown] ASCLEPIADACEAE Chaenactis artemisiifolia (white pincushion) - [Uncommon] Araujia sericifera (white bladderflower) * - [Uncommon] Chaenactis glabriuscula var. glabriuscula (yellow pincushion) Asclepias californica (California milkweed) - [Uncommon] - [Uncommon] Asclepias eriocarpa (Indian milkweed) - [Uncommon] Chaenactis glabriuscula var. lanosa - [Unknown] Asclepias fascicularis (Narrow-leaved milkweed) - [Common] Chamomilla suaveolens (pineapple weed) * - [Common] Sarcostemma cynanchoides ssp. hartwegii (climbing Chondrilla juncea (skeleton weed) * - [Uncommon] milkweed) - [Rare] Chrysanthemum coronarium (garland chrysanthemum) * - ASTERACEAE [Uncommon] Achillea millefolium (yarrow) - [Rare] Chrysothamnus nauseosus ssp. mohavensis (rabbit-brush) - Achyrachaena mollis (blow-wives) - [Rare] [Rare] Acourtia microcephala (perezia) - [Common] Cichorium intybus (chicory) * - [Uncommon] Acroptilon repens (Russian knapweed) * - [Rare] Cirsium occidentale var. californicum (California thistle) - Ageratina adenophora (thoroughwort) * - [Uncommon] [Common] Agoseris grandiflora (mountain dandelion) - [Uncommon] Cirsium occidentale var. occidentale (cobwebby thistle) - Agoseris heterophylla (annual goatsbeard) - [Unknown] [Unknown] Amblyopappus pusillus (coast weed) - [Rare] Cirsium vulgare (bull thistle) * - [Uncommon] Ambrosia acanthicarpa (sand-bur) - [Uncommon] Cnicus benedictus (blessed thistle) - [Uncommon] Ambrosia artemisiifolia (common ragweed) * - [Common] Conyza bonariensis (little horseweed) * - [Uncommon] Ambrosia chamissonis (silver beach-bur) - [Common] Conyza canadensis (horseweed) - [Common] Ambrosia confertiflora (perennial burweed) - [Uncommon] Conyza coulteri - [Uncommon] Ambrosia psilostachya (western ragweed) - [Common] Coreopsis bigelovii (annual coreopsis) - [Rare] Anaphalis margaritacea - [Unknown] Coreopsis calliopsidea (leafystem coreopsis) - [Rare] Ancistrocarphus filagineus (woolly fishhooks) - [Common] Coreopsis gigantea (giant coreopsis) - [Uncommon] Anthemis cotula (mayweed) * - [Rare] Corethrogyne filaginifolia - [Common] Artemisia biennis (biennial sagewort) * - [Uncommon] Cotula australis (Australian brassbutton) * - [Common] Artemisia californica (California sagebrush) - [Common] Cotula coronopifolia (brass buttons) * - [Uncommon] Artemisia douglasiana (mugwort) - [Common] Crepis capillaris (smooth hawksbeard) * - [Unknown] Artemisia dracunculus (dragon sage, wild tarragon) - Cynara cardunculus (cardoon) * - [Uncommon] [Common] Cynara scolymus (artichoke) * - [Unknown] Artemisia tridentata ssp. parishii (big sagebrush) - [Rare] Deinandra fasciculata (slender tarweed) - [Common] Aster lanceolatus ssp. hesperius (western aster) - [Rare] Deinandra minthornii (Santa Susana tarweed) - [Rare] Baccharis douglasii (salt marsh baccharis) - [Uncommon] Deinandra ramosissima - [Unknown] Baccharis malibuensis - [Rare] Dimorphotheca sinuata (cape-marigold) * - [Uncommon] Baccharis pilularis (coyote bush) - [Common] Eclipta prostrata (yerba de tajo) - [Uncommon] Encelia californica (bush sunflower) - [Common] ASTERACEAE Encelia farinosa (brittlebush, incienso) - [Rare] Baccharis plummerae ssp. plummerae (Plummer's Erechtites minima * - [Rare] baccharis) - [Uncommon] Ericameria arborescens (golden-fleece) - [Rare] Baccharis salicifolia (mule fat) - [Common] Ericameria ericoides (mock heather) - [Uncommon] Baccharis sergiloides (desert baccharis, squaw waterweed) * Ericameria linearifolia (slender-leaved goldenbush) - - [Unknown] [Uncommon] Bellis perennis (English daisy) * - [Uncommon] Ericameria palmeri var. pachylepis (Palmer's goldenbush) - Bidens frondosa (stick-tight) - [Common] [Uncommon] Bidens laevis (bur-marigold) - [Rare] Ericameria parishii var. parishii (Parish's goldenbush) - Bidens pilosa (beggar-ticks) * - [Common] [Uncommon] ASTERACEAE CATEGORY DEFINITION Abundance Abundant Large number of individuals;