List of flora of the Santa Monica Mountains

The Santa Monica Mountains, one of the Transverse Ranges located in Southern California, are in the California chaparral and woodlands ecoregion of the California Floristic Province. This ecoregion has two predominant ecosystems, with three primary plant communities:
 * the California coastal sage and chaparral, with coastal sage scrub along the coast,
 * the California montane chaparral and woodlands, with chaparral and California oak woodlands as the mountains rise and recede from the coast and descend into the interior valleys.

Introduction
The Santa Monica Mountains are covered by hundreds of local plant species: some are endemic or very rare, some are beautiful California native plants in situ, and some also are familiar as horticultural ornamental and native garden plants. Each season has different plants predominating the visual experience.

A partial list of Plants seen in the Santa Monica Mountains:

Monocotyledons

 * Agavaceae
 * Hesperoyucca whipplei (aka: Yucca whipplei) (Chaparral Yucca, Our Lord's Candle, Spanish Bayonet)


 * Amaryllidaceae
 * Allium peninsulare
 * Bloomeria crocea
 * Dipterostemon capitatus (Blue Dicks)


 * Cyperaceae
 * Carex senta
 * Carex spp.


 * Iridaceae
 * Sisyrinchium bellum (Blue Eyed Grass)


 * Juncaceae
 * Juncus patens (Gray Spike Rush)
 * Juncus spp.


 *  Liliaceae
 * Calochortus splendens (Calochortus)
 * Calochortus venustus
 * Calochortus spp.
 * Chlorogalum pomeridianum (Soap Plant)
 * Fritillaria biflora
 * Lilium humboldtii (Humboldt's Lily)


 * Orchidaceae
 * Epipactis gigantea (Stream Orchid)


 * Poaceae alt. Gramineae
 * Festuca californica (California fescue)
 * Leymus condensatus (aka: Eleymus condensatus) (Giant Wild Rye grass)
 * Leymus triticoides (Creeping Wild Rye)
 * Melica californica (California Melic Grass)
 * Melica imperfecta (Little California Melic Grass)
 * Nassella pulchra (aka: Stipa pulchra) (Purple Needlegrass)-California State Grass

Dicotyledons

 * Aizoaceae
 * (Ice Plant)
 * Carpobrotus edulis
 * Mesembryanthemum crystallinum


 * Anacardiaceae (Sumac)
 * Malosma laurina (Laurel Sumac)
 * Rhus integrifolia (Lemonadeberry)
 * Rhus ovata (Sugar Bush)
 * Rhus trilobata (Squaw Bush)
 * Toxicodendron diversilobum (Poison Oak) (skin irritation)


 * Apiaceae (Umbel flowers, Carrots)
 * Conium maculatum (Poison Hemlock) (poisonous)
 * Foeniculum vulgare (Sweet Fennel)


 * Asteraceae
 * (Yarrow)
 * Artemisia californica (California sagebrush)
 * Baccharis glutinosa (Mule fat)
 * Baccharis pilularis (Coyote Brush)
 * Centaurea melitensis (Yellow Star Thistle) (significant invasive exotic)
 * Cirsium occidentale
 * Encelia californica
 * Eriophyllum confertiflorum
 * Gnaphalium californicum
 *  Malacothrix saxatilis (Cliff Aster)
 * Silybum marianum
 * Misc (sunfowers)


 * Boraginaceae
 * Brassicaceae
 * Brassica nigra (Black Mustard) (invasive exotic)
 * Stanleya pinnata


 * Cactaceae
 * Opuntia littoralis 


 * Capparaceae
 * Isomeris arborea 
 * Sambucus mexicana  (Mexican Elderberry)


 * Caryophyllaceae
 * Silene laciniata


 * Chenopodiaceae
 * Salsola iberica (Tumbleweed)


 * Cistaceae
 * Cistus villosus 
 * Helianthemum scoparium


 * Convolvulaceae
 * Calystegia macrostegia (Morning glory)
 * Cuscuta californica  (Dodder, Orangebeard, Witches Hair)


 * Crassulaceae
 * Dudleya lanceolata 
 * Dudleya pulverulenta (Chalk Dudleya)


 * Cucurbitaceae
 * Cucurbita foetidissima 
 * Marah macrocarpus 


 * Ericaceae (Heath family)
 * Arctostaphylos glandulosa 


 * Euphorbiaceae
 * Euphorbia albomarginata 
 * Ricinus communis 


 * Fabaceae (Leguminosae, Pea family)
 * Lotus scoparius (Broom)
 * Lupinus spp.
 * Lupinus hirsutissimus 
 * Medicago sativa 
 * Pickeringia montana 
 * Spartium junceum 


 * Gentianaceae
 * Centaurium venustum 


 * Geraniaceae
 * Erodium cicutarium 


 * Hydrophyllaceae
 * Eriodictyon crassifolium  (Yerba Santa)
 * Phacelia cicutaria  (Caterpillar phacelia)
 * Phacelia grandiflora 
 * Phacelia parryi 


 * Lamiaceae (Mint)
 * Marrubium vulgare  (Horehound)
 * Salvia apiana  (White Sage)
 * Salvia clevelandii - (Cleveland sage)
 * Salvia columbariae  (Chia)
 * Salvia leucophylla  (Purple sage)
 * Salvia mellifera  (Black sage)


 * Malvaceae
 * Malacothamnus fasciculatus 
 *  Malva parviflora  (Cheeseweed)


 * Nyctaginaceae
 * Abronia umbellata  (Verbena)
 * Mirabilis californica  (Wishbone Plant)


 * Onagraceae
 * Clarkia deflexa 
 * Clarkia unguiculata 
 * Zauschneria californica  - (California Fuchsia)


 * Oxalidaceae
 *  Oxalis pes-caprae 


 * Paeoniaceae
 * Paeonia californica 


 * Papaveraceae
 * Dendromecon rigida  - (Bush Poppy)
 * Dicentra ochroleuca 
 * Eschscholzia californica  - (California Poppy)
 * Papaver californicum 
 * Romneya coulteri  - (Matilija Poppy)


 * Polemonacea
 * Leptodactylon californicum
 * Linanthus dianthiflorus


 * Polygonaceae
 * Eriogonum crocatum - (Conejo Buckwheat) (endemic)
 * Eriogonum cinereum - (Coastal Buckwheat)  (endemic)
 * Eriogonum elongatum
 * Eriogonum fasciculatum - (California buckwheat)
 * Rumex crispus


 * Portulacaceae
 * Claytonia perfoliata 
 * Primulaceae
 * Anagalis arvensis 
 * Dodecatheon clevelandii 


 * Ranunculaceae
 * Clematis ligusticifolia 
 * Delphinium cardinale:
 * Delphinium parryi 
 * Ranunculus californicus 


 * Rhamnaceae
 * Ceanothus crassifolius 
 * Ceanothus cuneatus 
 * Ceanothus leucodermis 
 * Ceanothus megacarpus  - (Bigpod Ceanothus) (endemic)
 * Ceanothus oliganthus 
 * Ceanothus spinosus 
 * Rhamnus californica  - (Coffeeberry)


 * Rosaceae
 * Adenostoma fasciculatum  - (Coastal Sage)
 * Cercocarpus betuloides  - (Mountain Mahogany)
 * Heteromeles arbutifolia  - (Toyon)
 * Prunus ilicifolia  - (Evergreen Cherry)
 * Rosa californica 
 * Rubus ursinus  - (California Blackberry)


 * Salicaceae
 * Salix lasiolepis - (Arroyo Willow)


 * Saxifragaceae
 * Ribes amarum - (Bitter Gooseberry) (endemic)
 * Ribes aureum  - (Golden Currant)
 * Ribes divaricatum - (Parish's Gooseberry)
 * Ribes malvaceum - (Chaparral Currant)
 * Ribes speciosum  - (Fuchsia-flowered Gooseberry)


 * Scrophulariaceae (Figwort family)
 * Anirrhinum coulterianum 
 * Antirrhinim kelloggii 
 * Castilleja affins 
 * Casrilleja foliolosa 
 * Castilleja marinii 
 * Mimulus brevipes 
 * Mimulus aurantiacus 
 * Mimulus cardinalis 
 * Mimulus guttatus 
 * Mimulus longiflorus 
 * Mimulus pilosus 
 * Orthocarpus purpurascens 
 * Pedicularis densiflora 
 * Penstemon centranthifolius 
 * Penstemon heterophyllus 
 * Penstemon spectabilis 


 * Solanaceae
 * Datura innoxia (Datura)
 * Nicotiana glauca 
 * Nicotiana bigelovii 
 * Nicotiana glauca 
 * Solanum douglasii 
 * Solanum xanti


 * Trees
 * Acer macrophyllum - (Bigleaf Maple)
 * Alnus rhombifolia - (White Alder)
 * Juglans californica - (California Black Walnut)
 * Quercus agrifolia - (Coast Live Oak)
 * Quercus chrysolepis - (Canyon Live Oak)
 * Pinus sabiniana - (Digger Pine, Gray Pine)
 * Platanus racemosa - (California Sycamore)
 * Umbellularia Californica - (California Bay)