| Abronia maritima* |
Red sand verbena |
| Abronia umbellata |
Sand verbena |
| Acer macrophyllum |
Big-leaf maple (leaf) |
| Acer negundo |
Box elder (flowers) |
| Acer negundo |
Box elder (leaves) |
| Achillea millefolium |
Yarrow |
| Achnatherum coronatum |
Giant needlegrass |
| Achyrachaena mollis |
Blow wives |
| Achyrachaena mollis |
Blow wives (seed head) |
| Acourtia microcephala |
Perezia |
| Acourtia microcephala |
Perezia (white) |
| Acroptilon repens |
Russian knapweed |
| Adenostoma fasciculatum |
Chamise |
| Adenostoma sparsifolium |
Red shanks |
| Adenostoma sparsifolium |
Red shanks (flowers) |
| Adiantum capillis-veneris |
Venus-hair fern |
| Adiantum jordanii |
Maiden-hair fern |
| Ageratina adenophora* |
Eupatory |
| Agoseris grandiflora |
Mountain dandelion |
| Agoseris grandiflora |
Mountain dandelion (seed head) |
| Ailanthus altissima |
Tree of heaven (young) |
| Alisma plantago-aquatica |
Water plantain |
| Allium haematochiton |
Red-skinned onion |
| Allium neapolitanum? |
White garlic? |
| Allium neapolitanum? |
White garlic? (flowers) |
| Allium peninsulare |
Penisular onion |
| Allium praecox? |
Early onion? |
| Allium praecox? |
Early onion? (flowers) |
| Allophyllum glutinosum* |
False gilia |
| Alnus rhombifolia |
White alder |
| Amaranthus albus |
Tumbleweed |
| Amaranthus californicus |
California pigweed |
| Amblyopappus pusillus |
Coast weed |
| Ambrosia chamissonis |
Silver beach-bur |
| Ambrosia psilostachya |
Western ragweed |
| Ammannia coccinea |
Red ammannia |
| Ammannia coccinea |
Red ammannia (flower) |
| Amorpha californica |
False indigo |
| Amsinckia menziesii var. intermedia |
Fiddleneck |
| Amsinckia menziesii var. menziesii |
Fiddleneck |
| Anagallis arvensis |
Scarlet pimpernel |
| Anagallis arvensis |
Scarlet pimpernel (blue) |
| Anagallis arvensis |
Scarlet pimpernel (white) |
| Anemopsis californica |
Yerba mansa |
| Anthemis cotula |
Mayweed |
| Anthriscus caucalis |
Bur chervil |
| Antirrhinum coulterianum |
White snapdragon |
| Antirrhinum kelloggii |
Twining snapdragon |
| Antirrhinum multiflorum |
Rose snapdragon |
| Antirrhinum nuttallianum |
Violet snapdragon |
| Aphanes occidentalis |
Lady's mantle |
| Apiastrum angustifolium |
Wild parsley |
| Apium graveolens |
Celery |
| Arabis glabra |
Tower mustard |
| Arabis sparsiflora |
Elegant rock cress |
| Arctostaphylos glandulosa |
Eastwood manzanita |
| Arctostaphylos glauca |
Big-berry manzanita |
| Arctostaphylos glauca |
Big-berry manzanita (berries) |
| Argemone munita |
Prickly poppy |
| Artemisia californica |
California sagebrush |
| Artemisia douglasiana |
Mugwort |
| Artemisia dranunculus |
Tarragon |
| Artemisia dranunculus |
Tarragon (flowers) |
| Arundo donax |
Giant reed |
| Asclepias californica |
California milkweed |
| Asclepias eriocarpa |
Indian milkweed |
| Asclepias fascicularis |
Narrow-leaved milkweed |
| Asphodelus fistulosus |
Asphodel |
| Aspidotis californica |
California lace fern |
| Aster subulatus |
Slim aster |
| Astragalus brauntonii |
Braunton's milkvetch |
| Astragalus brauntonii |
Braunton's milkvetch (flowers) |
| Astragalus didymocarpus |
Dwarf astragalus |
| Astragalus trichopodus var. lonchus |
Southern California locoweed |
| Astragalus trichopodus var. phoxus |
Santa Barbara locoweed |
| Athysanus pusillus |
Sandweed |
| Athysanus pusillus (fruit) |
Sandweed |
| Atriplex lentiformis |
Quail bush |
| Atriplex leucophylla |
Beach saltbush |
| Atriplex rosea? |
Redscale? |
| Atriplex semibaccata? |
Australian saltbush? |
| Atriplex triangularis |
Spearscale |
| Avena barbata |
Slender oats |
| Avena fatua |
Wild oats |
| Baccharis douglasii |
Salt-marsh baccharis (female) |
| Baccharis douglasii |
Salt-marsh baccharis (male) |
| Baccharis malibuensis |
Malibu baccharis (female) |
| Baccharis malibuensis |
Malibu baccharis (male) |
| Baccharis pilularis |
Coyote brush (female) |
| Baccharis pilularis |
Coyote brush (male) |
| Baccharis plummerae |
Plummer's baccharis (female) |
| Baccharis plummerae |
Plummer's baccharis (male) |
| Baccharis salicifolia |
Mule fat (female) |
| Baccharis salicifolia |
Mule fat (male) |
| Barbarea orthoceras |
Winter cress |
| Bassia hyssopifolia |
Fivehook bassia |
| Bassia hyssopifolia |
Fivehook bassia (flower) |
| Bellis perrenis |
English daisy |
| Berberis pinnata |
California barberry |
| Berula erecta |
Water parsnip |
| Bidens laevis |
Bur marigold |
| Bidens pilosa |
Beggar-ticks |
| Bloomeria crocea |
Golden stars |
| Bowlesia incana |
Bowlesia |
| Bowlesia incana |
Bowlesia (leaf) |
| Boykinia occidentalis |
Coast boykinia |
| Boykinia rotundifolia |
Round-leaved boykinia |
| Boykinia rotundifolia |
Round-leaved boykinia (leaves) |
| Brassica nigra |
Black mustard |
| Brassica nigra |
Black mustard (flowers) |
| Brassica rapa |
Field mustard |
| Brassica tournefortii |
Saharan mustard |
| Brickellia californica |
California Brickellbush |
| Brickellia nevinii |
Nevin's brickellbush |
| Brodiaea terrestris |
Dwarf brodiaea |
| Bromus diandrus |
Ripgut brome |
| Bromus hordeaceus |
Soft chess |
| Bromus madritensis |
Red brome |
| Cakile maritima |
Sea rocket |
| Calandrinia breweri |
Brewer's redmaids |
| Calandrinia ciliata |
Redmaids |
| Calochortus albus |
Fairy lantern |
| Calochortus catalinae |
Catalina mariposa |
| Calochortus clavatus |
Yellow mariposa |
| Calochortus plummerae |
Plummer's mariposa |
| Calochortus splendens |
Lilac mariposa |
| Calochortus venustus |
Butterfly mariposa |
| Calyptridium monandrum* |
Sand cress (leaves) |
| Calystegia collina ssp. venusta |
South Coast morning glory |
| Calystegia macrostegia |
Morning glory |
| Calystegia soldanella |
Beach morning glory |
| Camissonia bistorta |
Suncup |
| Camissonia boothii ssp. decorticans |
Bottle washer |
| Camissonia californica |
California suncup |
| Camissonia cheiranthifolia |
Beach evening primrose |
| Camissonia micrantha |
Small evening primrose |
| Camissonia strigulosa? |
Contorted evening primrose? |
| Capsella bursa-pastoris |
Shepherd's purse |
| Cardamine californica |
Milkmaids |
| Cardamine oligosperma |
Bitter cress |
| Cardaria draba |
Hoary cress |
| Carduus pycnocephalus |
Italian thistle |
| Carpobrotus chilensis |
Sea fig |
| Carpobrotus edulis |
Hottentot fig |
| Castilleja affinis |
Paintbrush |
| Castilleja exserta |
Owl's clover |
| Castilleja foliolosa |
Woolly paintbrush |
| Castilleja minor |
Thread torch |
| Caulanthus heterophyllus var. pseudo-simulans |
Jewel flower |
| Ceanothus crassifolius |
Hoary-leaved ceanothus |
| Ceanothus crassifolius |
Hoary-leaved ceanothus (flowers) |
| Ceanothus cuneatus |
Buck brush |
| Ceanothus leucodermis |
White thorn |
| Ceanothus megacarpus |
Big-pod ceanothus |
| Ceanothus oliganthus |
Hairy-leaved ceanothus |
| Ceanothus spinosus |
Greenbark ceanothus |
| Centaurea melitensis |
Yellow star thistle |
| Centaurea solstitialis |
Barnaby's thistle |
| Centaurium exaltatum |
Spring-loving centaury |
| Centaurium venustum |
Canchalagua |
| Centranthus ruber |
Red valerian |
| Cerastium glomeratum |
Mouse-eared chickweed |
| Cercis occidentalis |
Western redbud |
| Cercis occidentalis |
Western redbud (flowers) |
| Cercocarpus betuloides |
Mountain mahogany |
| Cercocarpus betuloides |
Mountain mahogany (fruit) |
| Chaenactis artemisiifolia |
White pincushion flower |
| Chaenactis glabriuscula |
Yellow pincushion flower |
| Chamaesyce albomarginata |
Rattlesnake weed |
| Chamaesyce sp. |
Rattlesnake weed |
| Chamomilla suaveolens |
Pineapple weed |
| Chenopodium album |
Lamb's quarter |
| Chenopodium ambrosioides |
Mexican tea |
| Chenopodium californicum |
California goosefoot |
| Chenopodium macrospermum |
Coast goosefoot |
| Chenopodium murale |
Nettle-leaf goosefoot |
| Chlorogalum pomeridianum |
Soap plant |
| Chondrilla juncea |
Skeleton weed |
| Chorizanthe parryi var. fernandina |
San Fernando Valley spineflower |
| Chorizanthe parryi var. fernandina |
San Fernando Valley spineflower (flowers) |
| Chorizanthe staticoides |
Turkish rugging |
| Chrysanthemum coronarium |
Garland chrysanthemum (white) |
| Chrysanthemum coronarium |
Garland chrysanthemum (yellow) |
| Cichorium intybus |
Chicory |
| Cirsium occidentale var. californicum |
California thistle |
| Cirsium occidentale var. occidentale |
Cobweb thistle |
| Cirsium occidentale var. occidentale |
Cobweb thistle (inflorescence) |
| Cirsium vulgare |
Bull thistle |
| Cistus creticus |
Pink rockrose |
| Cistus ladanifer |
Crimson-spot rockrose |
| Cistus ladanifer |
Crimson-spot rockrose (leaves) |
| Clarkia bottae |
Farewell to spring |
| Clarkia cylindrica |
Speckled clarkia |
| Clarkia epilobioides |
Willow-herb clarkia |
| Clarkia purpurea |
Purple clarkia (spotted) |
| Clarkia purpurea |
Winecup clarkia (dark) |
| Clarkia unguiculata |
Elegant clarkia |
| Claytonia exigua |
Little spring beauty |
| Claytonia perfoliata |
Miner's lettuce |
| Claytonia perfoliata |
Miner's lettuce (flower) |
| Clematis lasiantha |
Virgin's bower |
| Clematis lasiantha |
Virgin's bower (seed head) |
| Clematis ligusticifolia |
Western virgin's bower |
| Collinsia heterophylla |
Chinese houses |
| Collinsia heterophylla |
Chinese houses (white) |
| Collinsia parryi |
Parry's blue-eyed Mary |
| Comarostaphylis diversifolia |
Summer holly |
| Comarostaphylis diversifolia |
Summer holly (fruit) |
| Conium maculatum |
Poison hemlock |
| Conium maculatum |
Poison hemlock (flowers) |
| Convolvulus arvensis |
Bindweed |
| Convolvulus simulans |
Small-flowered morning glory |
| Conyza bonariensis |
Little horseweed |
| Conyza canadensis |
Horseweed |
| Conyza coulteri |
Coulter's horseweed |
| Cordylanthus maritimus |
Salt-marsh bird's beak |
| Cordylanthus rigidus |
Bird's beak |
| Coreopsis bigelovii |
Bigelow's coreopsis |
| Coreopsis bigelovii |
Bigelow's coreopsis (phyllaries) |
| Coreopsis californica?* |
California coreopsis? |
| Coreopsis gigantea |
Giant coreopsis |
| Coronopus didymus |
Wart cress |
| Cortaderia selloana? |
Pampas grass |
| Cotula australis |
Australian brass buttons |
| Cotula coronopifolia |
Brass buttons |
| Crassula connata |
Pygmy weed |
| Cressa truxillensis |
Alkali weed |
| Croton californicus |
Croton |
| Crypsis schoenoides |
Swamp grass |
| Cryptantha intermedia |
Large-flowered popcorn flower |
| Cryptantha micromeres? |
Small-flowered popcorn flower |
| Cryptantha muricata |
Popcorn flower |
| Cucurbita foetidissima |
Coyote melon |
| Cupressus sp.? |
Cypress? |
| Cuscata californica |
Dodder (flower) |
| Cuscata salina |
Dodder (flowers) |
| Cuscuta sp. |
Dodder |
| Cynara cardunculus |
Wild artichoke |
| Cyperus sp. |
Umbrella sedge |
| Datisca glomerata |
Durango root |
| Datisca glomerata |
Durango root (flower) |
| Datura wrightii |
Jimson weed |
| Datura wrightii |
Jimson weed (fruit) |
| Daucus pusillus |
Wild carrot |
| Delosperma litorale?? |
Seaside delosperma?? |
| Delphinium cardinale |
Scarlet larkspur |
| Delphinium parryi |
Parry's larkspur |
| Delphinium patens |
Spreading larkspur |
| Delphinium patens |
Spreading larkspur (pale) |
| Dendromecon rigida |
Bush poppy |
| Descurania pinnata* |
Tansy mustard |
| Dicentra ochroleuca |
Bleeding heart |
| Dicentra ochroleuca |
Bleeding heart (flowers) |
| Dichelostemma capitatum |
Blue dicks |
| Dichondra occidentalis |
Western dichondra (leaves) |
| Dipsacus sp. |
Teasel |
| Distichlis spicata* |
Salt grass |
| Dodecatheon clevelandii |
Shooting star |
| Dodecatheon clevelandii |
Shooting star (white) |
| Dryopteris arguta |
Coastal wood-fern |
| Dudleya abramsii ssp. parva |
Conejo dudleya |
| Dudleya blochmaniae |
Blochman's live-forever |
| Dudleya caespitosa |
Coast dudleya |
| Dudleya cymosa ssp. agourensis |
Agoura Hills dudleya |
| Dudleya cymosa ssp. marescens |
Marescent dudleya |
| Dudleya cymosa ssp. ovatifolia |
Santa Monica Mountains dudleya |
| Dudleya lanceolata |
Lance-leaf dudleya |
| Dudleya lanceolata |
Lance-leaf dudleya (yellow) |
| Dudleya pulverulenta |
Chalk live-forever |
| Dudleya pulverulenta |
Chalk live-forever (flowers) |
| Dudleya verityi |
Verity's dudleya |
| Echinodorus berteroi |
Burhead |
| Eclipta prostrata |
False daisy |
| Emmenanthe penduliflora |
Whispering bells |
| Emmenanthe penduliflora |
Whispering bells (flower) |
| Encelia californica |
California sunflower |
| Encelia californica |
California sunflower (flower) |
| Encelia farinosa |
Brittlebush |
| Epilobium brachycarpum |
Willow-herb |
| Epilobium canum |
California fuschia |
| Epilobium ciliatum |
Slender willow-herb |
| Epipactis gigantea |
Stream orchid |
| Equisetum laevigatum? |
Smooth scouring rush? |
| Equisetum telmateia |
Giant horsetail (fertile stem) |
| Equisetum telmateia |
Giant horsetail (sterile stem) |
| Eremocarpus setigerus |
Dove weed |
| Eriastrum densifolium |
Perennial woollystar |
| Eriastrum sapphirinum |
Sapphire woollystar |
| Ericameria ericoides |
Mock heather |
| Ericameria linearifolia |
Narrow-leaved goldenbush |
| Ericameria linearifolia |
Narrow-leaved goldenbush (flower) |
| Ericameria palmeri |
Palmer's goldenbush |
| Ericameria palmeri |
Palmer's goldenbush (flowers) |
| Erigeron foliosus |
Fleabane aster |
| Eriodictyon crassifolium |
Yerba santa |
| Eriogonum angulosum |
Angle-stemmed buckwheat |
| Eriogonum cinereum |
Ashy-leaved buckwheat |
| Eriogonum cithariforme |
Cithara buckwheat |
| Eriogonum cithariforme |
Cithara buckwheat (flowers) |
| Eriogonum crocatum |
Conejo buckwheat |
| Eriogonum elongatum |
Long-stemmed buckwheat |
| Eriogonum fasciculatum |
California buckwheat |
| Eriogonum giganteum |
St. Catherine's lace |
| Eriogonum parvifolium* |
Sea-cliff buckwheat |
| Eriogonum wrightii ssp. membranaceum |
Wright's buckwheat |
| Eriophyllum confertiflorum |
Golden yarrow |
| Erodium botrys |
Long-beaked filaree |
| Erodium cicutarium |
Red-stemmed filaree |
| Erodium macrophyllum |
White-flowered filaree |
| Erodium macrophyllum |
White-flowered filaree (leaves/fruit) |
| Erodium moschatum |
White-stemmed filaree |
| Erodium moschatum |
White-stemmed filaree (white) |
| Erysimum capitatum |
Western wallflower |
| Erysimum insulare sp. suffrutescens* |
Dune wallflower |
| Eschscholzia caespitosa |
Collarless poppy |
| Eschscholzia californica |
California poppy |
| Eucrypta chrysanthemifolia |
Common eucrypta |
| Euphorbia terracina |
False caper |
| Euthamia occidentalis |
Western goldenrod |
| Filago californica |
California filago |
| Filago gallica |
Narrow-leaved filago |
| Foeniculum vulgare |
Fennel |
| Frankenia salina |
Alkali heath |
| Fraxinus dipetala |
Chaparral flowering ash (flower) |
| Fraxinus dipetala |
Chaparral flowering ash (flowers) |
| Fraxinus dipetala |
Chaparral flowering ash (fruit) |
| Fraxinus velutina |
Arizona ash (leaves) |
| Fritillaria biflora |
Chocolate lily |
| Gaillardia sp. |
Indian blanket |
| Galenia pubescens |
Coastal galenia |
| Galium andrewsii |
Pine mat |
| Galium angustifolium* |
Narrow-leaved bedstraw |
| Galium aparine |
Common bedstraw |
| Galium nuttallii |
Climbing bedstraw |
| Galvezia speciosa |
Island bush snapdragon |
| Garrya veatchii |
Silk tassel bush |
| Gazania linearis |
Gazania |
| Genista monspessulana |
French broom |
| Geranium carolinianum |
Carolina geranium |
| Geranium molle |
Dove's-foot geranium |
| Geranium rotundifolium |
Round-leafed geranium |
| Geranium rotundifolium |
Round-leafed geranium (white) |
| Gilia angelensis |
Angel's gilia |
| Gilia angelensis |
Angel's gilia (white) |
| Gilia capitata |
Globe gilia |
| Gilia clivorum |
Purple-spot gilia |
| Gilia splendens ssp. splendens |
Splendid gilia |
| Glycyrrhiza lepidota |
Wild licorice |
| Gnaphalium bicolor |
Bicolored everlasting |
| Gnaphalium californicum |
California everlasting |
| Gnaphalium canescens ssp. beneolens |
Fragrant everlasting |
| Gnaphalium canescens ssp. microcephalum |
Felt-leaf everlasting |
| Gnaphalium luteo-album |
Weedy cudweed |
| Gnaphalium palustre |
Lowland cudweed |
| Gnaphalium stramineum |
Cotton-batting plant |
| Grindelia camporum |
Gum plant |
| Guillenia lasiophylla |
California mustard |
| Hazardia squarrosa |
Sawtooth goldenbush |
| Hedypnois cretica |
Crete weed |
| Helenium puberulum |
Sneezeweed |
| Helianthemum scoparium |
Rock rose |
| Helianthus annuus |
Common sunflower |
| Helianthus gracilentus |
Slender sunflower |
| Heliotropium curassavicum |
Wild heliotrope |
| Hemizonia fasciculata |
Common tarweed |
| Hemizonia minthornii |
Santa Susanna tarweed |
| Hemizonia minthornii |
Santa Susanna tarweed (flowers) |
| Herniaria hirsuta ssp. hirsuta |
Herniaria |
| Hesperocnide tenella |
Western stinging nettle |
| Hesperolinon micranthum |
Small-flowered dwarf flax |
| Heteromeles arbutifolia |
Toyon |
| Heteromeles arbutifolia |
Toyon (berries) |
| Heterotheca grandiflora |
Telegraph weed |
| Heterotheca sessiliflora |
Golden aster |
| Hieracium argutum |
Hawkweed |
| Hieracium argutum |
Hawkweed (leaves) |
| Hirschfeldia incana |
Mediterranean mustard |
| Hoita macrostachya |
Leather root |
| Holodiscus discolor |
Cream bush |
| Hordeum murinum |
Foxtail barley |
| Horkelia cuneata |
Wedgeleaf horkelia |
| Hypochaeris glabra |
Smooth cat's ear |
| Ipomoea purpurea? |
Garden morning-glory? |
| Isocoma menziesii |
Coast goldenbush |
| Isomeris arborea |
Bladderpod |
| Jaumea carnosa |
Marsh jaumea |
| Juglans californica |
California black walnut (catkins) |
| Juglans californica |
California black walnut (fruit) |
| Juncus acutus |
Spiny rush |
| Juncus macrophyllus? |
Long-leaved rush? |
| Juniperus californica |
California juniper |
| Keckiella cordifolia |
Heart-leaved penstemon |
| Kochia scoparia |
Fire bush |
| Lactuca serriola |
Prickly lettuce |
| Lagophylla ramosissima |
Hareleaf |
| Lagophylla ramosissima |
Hareleaf (in fruit) |
| Lamarckia aurea |
Goldentop |
| Lamium amplexicaule |
Henbit |
| Lantana montevidensis |
Trailing lantana |
| Lasthenia californica |
Goldfields |
| Lasthenia californica |
Goldfields (flower) |
| Lasthenia coronaria |
Southern goldfields |
| Lasthenia glabrata ssp. coulteri |
Coulter's goldfields |
| Lathyrus vestitus |
Wild pea |
| Lathyrus vestitus |
Wild pea |
| Lavatera cretica? |
Cretan lavatera? |
| Layia platyglossa |
Tidy tips |
| Lepechinia fragrans |
Pitcher sage |
| Lepidium latifolium |
Perennial peppergrass |
| Lepidium nitidum |
Peppergrass |
| Lepidospartum squamatum |
Scale broom |
| Lepidospartum squamatum |
Scale broom (flowers) |
| Leptochloa sp. |
Sprangletop |
| Leptodactylon californicum |
Prickly phlox |
| Lessingia filaginifolia |
Cudweed aster |
| Lessingia filaginifolia |
Cudweed aster (purple and white) |
| Lewisia rediviva |
Bitter root |
| Leymus condensatus |
Giant rye grass |
| Lilium humboldtii |
Humboldt lily |
| Limonium californicum |
California sealavender |
| Limonium californicum |
California sealavender (flowers) |
| Limonium perezii |
Perez's sealavender |
| Linanthus dianthiflorus |
Ground pink |
| Linanthus dianthiflorus |
Ground pink (white) |
| Linanthus liniflorus |
Flax-flowered linanthus |
| Linanthus parviflorus |
Common linanthus |
| Linaria canadensis |
Blue toadflax |
| Linum bienne? |
Blue flax |
| Linum grandiflorum |
Scarlet flax |
| Lithophragma affine |
Woodland star |
| Lobularia maritima |
Sweet alyssum |
| Lolium multiflorum |
Italian ryegrass |
| Lomatium dasycarpum |
Woolly lomatium |
| Lomatium lucidum |
Shiny lomatium |
| Lomatium utriculatum |
Hog fennel |
| Lonicera subspicata |
Chaparral honeysuckle |
| Lotus argophyllus |
Silver lotus |
| Lotus corniculatus |
Bird's-foot trefoil |
| Lotus grandiflorus |
Large-flowered lotus |
| Lotus hamatus? |
San Diego bird's-foot trefoil? |
| Lotus purshianus |
Spanish clover |
| Lotus salsuginosus |
Coastal lotus |
| Lotus scoparius |
Deerweed |
| Lotus scoparius |
Deerweed (flowers) |
| Lotus strigosus |
Strigose lotus |
| Lotus wrangelianus |
Chile lotus |
| Ludwigia peploides |
Yellow water weed |
| Lupinus bicolor |
Dove lupine |
| Lupinus bicolor |
Dove lupine (flower) |
| Lupinus concinnus |
Bajada lupine |
| Lupinus hirsutissimus |
Stinging lupine |
| Lupinus latifolius |
Broad-leaved lupine |
| Lupinus longifolius |
Bush lupine |
| Lupinus longifolius |
Bush lupine (white) |
| Lupinus microcarpus |
Chick lupine |
| Lupinus sparsiflorus |
Coulter's lupine |
| Lupinus succulentus |
Succulent lupine |
| Lupinus truncatus |
Truncate-leaf lupine |
| Lythrum californicum |
California loosestrife |
| Lythrum hyssopifolium |
Hyssop loosestrife |
| Madia elegans |
Common madia |
| Madia exigua |
Pygmy madia |
| Madia gracilis |
Sticky madia |
| Malacothamnus fasciculatus |
Bush mallow |
| Malacothrix clevelandii |
Annual malacothrix |
| Malacothrix saxatilis |
Cliff aster |
| Malephora crocea |
Red iceplant |
| Malosma laurina |
Laurel sumac |
| Malva nicaeensis |
Bull mallow |
| Malva parviflora |
Cheeseweed |
| Malvella leprosa |
Alkali mallow |
| Marah macrocarpus |
Wild cucumber |
| Marah macrocarpus |
Wild cucumber (fruit) |
| Marrubium vulgare |
Horehound |
| Meconella denticulata |
Small-flowered meconella (in fruit) |
| Medicago polymorpha |
Bur clover |
| Medicago sativa |
Alfalfa |
| Melica imperfecta |
California melic |
| Melilotus alba |
White sweet clover |
| Melilotus indica |
Sour clover |
| Mentha Xpiperita? |
Peppermint? |
| Mentha spicata |
Spearmint |
| Mentzelia micrantha |
Stickleaf |
| Mesembryanthemum crystallinum |
Crystalline ice plant |
| Mesembryanthemum nodiflorum |
Slender-leaved iceplant |
| Micropus californicus |
Cotton top |
| Microseris douglasii?? |
Microseris |
| Mimulus aurantiacus |
Bush monkeyflower |
| Mimulus aurantiacus |
Bush monkeyflower (flowers) |
| Mimulus aurantiacus |
Bush monkeyflower (red) |
| Mimulus aurantiacus |
Bush monkeyflower (white) |
| Mimulus brevipes |
Wide-mouthed monkeyflower |
| Mimulus cardinalis |
Scarlet monkeyflower |
| Mimulus floribundus |
Many-flowered monkeyflower |
| Mimulus guttatus |
Stream monkeyflower |
| Mimulus pilosus |
Downy monkeyflower |
| Minuartia douglasii |
Douglas' sandwort |
| Mirabilis californica |
Wishbone plant |
| Mirabilis californica |
Wishbone plant (white) |
| Mirabilis jalapa |
Four o'clock |
| Monardella hypoleuca |
White-leaf monardella |
| Monolopia lanceolata |
Hillside daisy |
| Monolopia lanceolata |
Hillside daisy (phyllaries) |
| Muhlenbergia microsperma |
Annual muhly |
| Muhlenbergia rigens |
Deergrass |
| Muilla maritima |
Common muilla |
| Myoporum laetum |
Myoporum |
| Nassella lepida |
Foothill needlegrass |
| Nassella sp. |
Purple needlegrass |
| Navarretia hamata |
Hooked navarretia |
| Navarretia jaredii |
Paso Robles navarretia |
| Nemophila menziesii |
Baby blue eyes |
| Nicotiana clevelandii |
Cleveland's tobacco |
| Nicotiana glauca |
Tree tobacco |
| Nicotiana quadrivalvis |
Indian tobacco |
| Nolina cismontana |
Chaparral beargrass |
| Nolina cismontana |
Chaparral beargrass (in fruit) |
| Nymphaea mexicana |
Yellow water-lily |
| Oenothera elata ssp. hirsutissima |
Hairy evening primrose |
| Opuntia ficus-indica |
Indian fig |
| Opuntia ficus-indica |
Indian fig (flower) |
| Opuntia littoralis? |
Prickly pear |
| Opuntia prolifera |
Coast cholla |
| Opuntia prolifera |
Coast cholla (flower) |
| Orobanche uniflora |
Naked broomrape |
| Osmorhiza brachypoda |
Sweet cicely |
| Osteospermum fruticosum |
Freeway daisy |
| Oxalis albicans |
Wood-sorrel |
| Oxalis corniculata |
Weedy oxalis |
| Oxalis pes-caprae |
Bermuda buttercup |
| Oxalis pes-caprae |
Bermuda buttercup (flower) |
| Paeonia californica |
California peony |
| Paeonia californica |
California peony |
| Papaver californicum |
Fire poppy |
| Parthenocissus vitacea |
Virginia creeper (leaves) |
| Pectocarya linearis |
Slender pectocarya |
| Pedicularis densiflora |
Indian warrior |
| Pellaea andromedifolia |
Coffee fern |
| Pellaea mucronata |
Bird's-foot fern |
| Pennisetum setaceum |
Fountain grass |
| Penstemon centranthifolius |
Scarlet bugler |
| Penstemon heterophyllus |
Foothill penstemon |
| Penstemon spectabilis |
Showy penstemon |
| Pentachaeta lyonii |
Lyon's pentachaeta |
| Pentagramma triangularis |
Goldback fern |
| Perityle emoryi |
Rock daisy |
| Petrorhagia dubia |
Wild carnation |
| Phacelia cicutaria |
Caterpillar phacelia |
| Phacelia cicutaria |
Caterpillar phacelia |
| Phacelia distans |
Common phacelia |
| Phacelia egena |
Rock phacelia |
| Phacelia grandiflora |
Large-flowered phacelia |
| Phacelia grandiflora |
Large-flowered phacelia (white) |
| Phacelia imbricata |
Mountain phacelia |
| Phacelia minor* |
Wild Canterbury bells |
| Phacelia parryi |
Parry's phacelia |
| Phacelia ramosissima |
Branching phacelia |
| Phacelia viscida |
Sticky phacelia |
| Phacelia viscida |
Sticky phacelia (white) |
| Phalaris aquatica |
Harding grass |
| Phlox gracilis |
Slender phlox |
| Phlox gracilis |
Slender phlox (white) |
| Pholistoma auritum |
Fiesta flower |
| Pickeringia montana* |
Chaparral pea |
| Picris echioides |
Bristly ox-tongue |
| Piperia elongata? |
Rein orchid |
| Piptatherum milliaceum |
Smilo grass |
| Pisum sativum |
Garden pea |
| Pittosporum undulatum |
Mock orange |
| Pittosporum undulatum |
Mock orange (fruit) |
| Plagiobothrys nothofulvus |
Popcorn flower |
| Plantago erecta |
California plantain |
| Plantago lanceolata |
English plantain |
| Plantago major |
Common plantain |
| Platanus racemosa |
Western sycamore (fall) |
| Platanus racemosa |
Western sycamore (flower heads) |
| Platanus racemosa |
Western sycamore (leaves/flower heads) |
| Platystemon californicus |
Cream cups |
| Plectritis ciliosa |
Long-spurred plectritis |
| Pluchea odorata |
Marsh fleabane |
| Polycarpon tetraphyllum |
Four-leaved allseed |
| Polygala cornuta |
Milkwort |
| Polygonum amphibium |
Water smartweed |
| Polygonum amphibium |
Water smartweed (flowers) |
| Polygonum arenastrum |
Common knotweed |
| Polygonum arenastrum |
Common knotweed (flower) |
| Polygonum lapathifolium |
Willow weed |
| Polygonum lapathifolium |
Willow weed (leaves) |
| Polygonum sp. |
Knotweed |
| Polypodium californicum |
California polypody |
| Polypogon sp. |
Rabbitsfoot grass |
| Populus fremontii |
Fremont Cottonwood |
| Populus fremontii |
Fremont Cottonwood (catkin) |
| Portulaca oleracea |
Purslane |
| Potentilla glandulosa |
Sticky cinquefoil |
| Prunus ilicifolia |
Holly-leaf cherry |
| Prunus ilicifolia |
Holly-leaf cherry (fruit) |
| Psilocarphus tenellus |
Woolly-heads |
| Pterostegia drymarioides |
Threadstem |
| Pyracantha angustifolia? |
Pyracantha? |
| Quercus agrifolia |
California live oak |
| Quercus agrifolia |
California live oak (catkins) |
| Quercus berberidifolia |
Scrub oak (acorn) |
| Quercus berberidifolia |
Scrub oak (catkins) |
| Quercus lobata |
Valley oak |
| Quercus lobata |
Valley oak (catkins) |
| Rafinesquia californica |
California chicory |
| Ranunculus californicus |
California buttercup |
| Ranunculus hebecarpus |
Hairy-fruited buttercup |
| Ranunculus hebecarpus |
Hairy-fruited buttercup (leaf) |
| Ranunculus repens |
Creeping buttercup |
| Raphanus sativus |
Wild radish (pink) |
| Raphanus sativus* |
Wild radish (white) |
| Raphanus sativus* |
Wild radish (yellow) |
| Rhamnus californica |
Coffeeberry |
| Rhamnus californica |
Coffeeberry (berries) |
| Rhamnus crocea |
Redberry |
| Rhamnus crocea |
Redberry (fruit) |
| Rhamnus ilicifolia |
Holly-leaved redberry |
| Rhamnus ilicifolia |
Holly-leaved redberry (fruit) |
| Rhus integrifolia |
Lemonade berry |
| Rhus integrifolia |
Lemonade berry (fruit) |
| Rhus ovata |
Sugar bush |
| Rhus trilobata |
Skunk bush |
| Ribes aureum |
Golden currant |
| Ribes californicum |
Hillside gooseberry |
| Ribes indecorum |
White chapparal currant |
| Ribes malvaceum |
Chapparal currant |
| Ribes malvaceum |
Chapparal currant (buds) |
| Ribes speciosum |
Fuschia-flowered gooseberry |
| Ricinis communis |
Castor-bean |
| Robinia pseudoacacia |
Black locust |
| Romneya coulteri |
Matilija poppy |
| Rorippa curvisiliqua |
Western yellow cress |
| Rorippa nasturtium-aquaticum |
Water cress |
| Rosa californica |
California wild rose |
| Rosa californica |
California wild rose (hips) |
| Rubus discolor |
Himalayan blackberry |
| Rubus ursinus |
Blackberry |
| Rumex conglomeratus |
Clustered dock |
| Rumex crispus |
Curly dock |
| Rupertia physodes |
California tea |
| Salicornia sp. |
Pickleweed |
| Salix exigua |
Sandbar willow |
| Salix laevigata |
Red willow (male) |
| Salix lasiolepis |
Arroyo willow (female) |
| Salix lasiolepis |
Arroyo willow (male) |
| Salsola tragus |
Russian thistle |
| Salvia apiana |
White sage |
| Salvia columbariae |
Chia |
| Salvia leucophylla |
Purple sage |
| Salvia mellifera |
Black sage |
| Salvia spathacea |
Hummingbird sage |
| Sambucus mexicana |
Blue elderberry |
| Sambucus mexicana |
Blue elderberry (fruit) |
| Samolus parviflorus |
Water pimpernel |
| Sanicula arguta |
Snakeroot |
| Sanicula crassicaulis |
Pacific sanicle |
| Sanicula tuberosa |
Turkey pea |
| Saxifraga californica |
California saxifrage |
| Scandix pecten-veneris? |
Shepherd's needle? |
| Schinus molle |
Peruvian pepper tree (flower) |
| Schinus molle |
Peruvian pepper tree (leaves/fruit) |
| Schismus sp. |
Schismus |
| Scrophularia californica |
California bee plant |
| Scutellaria tuberosa |
Skullcap |
| Selaginella bigelovii |
Spike moss |
| Senecio aphanactis |
California groundsel |
| Senecio flaccidus var. douglasii |
Bush senecio |
| Senecio mikanioides |
Cape ivy |
| Senecio quadridentatus |
Cotton fireweed |
| Senecio vulgaris |
Common groundsel |
| Senna didymobotrya |
African senna |
| Sidalcea malvaeflora |
Checker bloom |
| Silene antirrhina |
Sleepy catchfly |
| Silene gallica |
Windmill pink |
| Silene laciniata |
Indian pink |
| Silene multinervia |
Many-nerved catchfly |
| Silene verecunda |
San Francisco campion |
| Silybum marianum |
Milk thistle |
| Sisymbrium irio |
London rocket |
| Sisymbrium officinale |
Hedge mustard |
| Sisymbrium orientale |
Oriental mustard |
| Sisyrinchium bellum |
Blue-eyed grass |
| Solanum americanum |
Little white nightshade |
| Solanum douglasii |
White nightshade |
| Solanum douglasii |
White nightshade (purple-tinged) |
| Solanum elaeagnifolium |
White horse-nettle |
| Solanum xanti |
Purple nightshade |
| Solidago californica |
California goldenrod |
| Sonchus asper |
Prickly sow thistle |
| Sonchus oleaceus |
Sow thistle |
| Sorghum halepense |
Johnson grass |
| Spartium junceum |
Spanish broom |
| Spergula arvenis |
Starwort |
| Spergularia macrotheca? |
Sand-spurry? |
| Spergularia marina |
Salt-marsh sand spurry |
| Stachys albens |
White hedge nettle |
| Stachys bullata |
Hedge nettle |
| Stanleya pinnata |
Prince's plume |
| Stebbinsoseris heterocarpa |
Brown microseris (in fruit) |
| Stellaria media |
Chickweed |
| Stephanomeria cichoriacea |
Tejon milk-aster |
| Stephanomeria cichoriacea |
Tejon milk-aster (white) |
| Stephanomeria diegensis |
San Diego milk-aster |
| Stephanomeria virgata |
Twiggy wreath plant |
| Stylocline gnaphalioides |
Nest-straw |
| Suaeda taxifolia |
Sea blite |
| Symphoricarpos mollis |
Snowberry |
| Symphoricarpos mollis |
Snowberry (fruit) |
| Tamarix sp. |
Tamarisk |
| Tamarix sp. |
Tamarisk (flowers) |
| Taraxacum officionale |
Dandelion |
| Taraxacum officionale |
Dandelion (seed head) |
| Tauschia arguta |
Southern tauschia |
| Tauschia hartwegii |
Hartweg's tauschia |
| Tetradymia comosa |
Cotton-thorn |
| Tetradymia comosa |
Cotton-thorn (flowers) |
| Thalictrum fendleri |
Meadow rue (female) |
| Thalictrum fendleri |
Meadow rue (male) |
| Thysanocarpus curvipes |
Lace pod |
| Thysanocarpus curvipes |
Lace pod (pods) |
| Thysanocarpus laciniatus |
Fringe-pod |
| Torilis arvensis |
Hedge parsley |
| Torilis arvensis |
Hedge parsley (flowers) |
| Torilis nodosa |
Knotted hedge parsley |
| Toxicodendron diversilobum |
Poison oak |
| Toxicodendron diversilobum |
Poison oak (leaves in fall) |
| Tragopogon porrifolius |
Oyster plant |
| Tragopogon porrifolius |
Oyster plant (seed head) |
| Tribulus terrestris |
Puncture vine |
| Tribulus terrestris |
Puncture vine (fruit) |
| Trichostema lanatum |
Woolly blue curls |
| Trichostema lanceolatum |
Vinegar weed |
| Trifolium albopurpureum |
Rancheria clover |
| Trifolium ciliolatum |
Tree clover |
| Trifolium ciliolatum |
Tree clover (aging) |
| Trifolium ciliolatum |
Tree clover (leaves) |
| Trifolium depauperatum |
Balloon clover |
| Trifolium hirtum |
Rose clover |
| Trifolium microcephalum |
Small-headed clover |
| Trifolium obtusiflorum |
Creek clover |
| Trifolium repens |
White clover |
| Trifolium variegatum* |
White-tipped clover |
| Trifolium willdenovii |
Tomcat clover |
| Tropaeolum majus |
Nasturtium |
| Tropidocarpum gracile |
Dobie-pod |
| Typha domingensis |
Narrow-leaved cattail |
| Typha latifolia |
Broad-leaved cattail |
| Umbellularia californica |
California bay tree |
| Uropappus lindleyi |
Silver puffs |
| Uropappus lindleyi |
Silver puffs (in fruit) |
| Urospermum picroides |
Prickly golden fleece |
| Urtica dioica |
Stinging nettle |
| Urtica urens |
Dwarf nettle |
| Venegasia carpesioides |
Canyon sunflower |
| Verbascum virgatum |
Wand mullein |
| Verbena lasiostachys |
Common verbena |
| Verbena sp.? |
Verbena (white) |
| Veronica anagallis-aquatica |
Water speedwell |
| Veronica peregrina |
Neckweed |
| Veronica persica |
Persian speedwell |
| Vicia americana |
American vetch |
| Vicia sativa |
Spring vetch |
| Vicia villosa |
Winter vetch |
| Vinca major |
Periwinkle |
| Viola pedunculata |
Johnny jump-up |
| Vitis girdiana |
Wild grape (leaves) |
| Vulpia myuros |
Rat-tail fescue |
| Woodwardia fimbriata |
Giant chain fern |
| Xanthium spinosum |
Spiny cocklebur |
| Xanthium strumarium |
Cocklebur |
| Yucca whipplei |
Our Lord's candle |
| Zantedeschia aethiopica |
Calla lily |
| Zigadenus fremontii |
Star lily |
| Zigadenus fremontii |
Star lily (flower) |