RCTC

deerweed

San Diego bird's-foot trefoil

Sacapellote

Acourtia microcephala is a species of flowering plant in the daisy family known by the common name sacapellote. It is native to southern California and Baja California, where it grows in woodland and chaparral, especially in the coastal mountain ranges.

Common Fiddleneck

Amsinckia menziesii is a species of plant in the Boraginaceae family, the borage or forget-me-not family.

California sagebrush

Artemisia californica, also known as California sagebrush, is a species of western North American shrubs in the sunflower family.

Tarragon

Tarragon (Artemisia dracunculus), also known as estragon, is a species of perennial herb in the sunflower family. It is widespread in the wild across much of Eurasia and North America, and is cultivated for culinary and medicinal purposes.

Santa Barbara Milkvetch

Astragalus trichopodus is a species of legume known by the common name Santa Barbara milk vetch. It is native to southern California and Baja California, where it grows in several types of open habitat, including in the Transverse Ranges and Mojave Desert.

tumbling orache

Atriplex rosea is a species of saltbush known by the common names tumbling saltbush, red orach, redscale and tumbling orach. It is native to Eurasia but it is widespread elsewhere as an introduced species.

berry saltbush

coyote brush

Baccharis pilularis, called coyote brush (or bush), chaparral broom, and bush baccharis, is a shrub in the daisy family native to California, Oregon, Washington, and Baja California. There are reports of isolated populations in New Mexico, most likely introduced.

hoary bowlesia

Black Mustard

Brassica nigra, or black mustard, is an annual plant cultivated for its black or dark brown seeds, which are commonly used as a spice. It is native to tropical regions of North Africa, temperate regions of Europe, and parts of Asia.

coast morning glory

Calystegia macrostegia, with the common names island false bindweed and island morning glory, is a species of morning glory in the Convolvulaceae family.

shepherd's-purse

Maltese star-thistle

Chenopodium californicum

Blitum californicum (syn. Chenopodium californicum) is a species of flowering plant in the amaranth family known by the common names California goosefoot and (ambiguously) "Indian lettuce".

Chenopodium murale

Common Lambsquarters

Chenopodium album is a fast-growing weedy annual plant in the genus Chenopodium.

Cobwebby Thistle

Cirsium occidentale, with the common name cobweb thistle or cobwebby thistle, is a North American species of thistle in the sunflower family.

poison hemlock

Conium maculatum, the hemlock or poison hemlock, is a highly poisonous biennial herbaceous flowering plant in the carrot family Apiaceae, native to Europe and North Africa. A hardy plant capable of living in a variety of environments, hemlock is widely naturalized in locations outside its native range.

Tejon cryptantha

Annual Cryptanthas

Cryptantha is a genus of flowering plants in the borage family, Boraginaceae. They are known commonly as cat's eyes and popcorn flowers (the latter name is also used to refer to the closely related genus Plagiobothrys). They are distributed throughout western North America and western South America, but they are absent from the regions in between.

Buffalo Gourd

California Cholla

Cylindropuntia californica is a species of cactus known by the common names California cholla, snake cholla, and cane cholla.

Sacred Datura

Datura wrighti, or sacred datura, is the name of a poisonous perennial plant and ornamental flower of southwestern North America. It is sometimes used as a hallucinogen. D. wrighti is classified as a deliriant and an anticholinergic.

California brittlebush

Encelia californica is a species of flowering plant in the daisy family known by the common name California brittlebush. It is also commonly referred to as "California bush sunflower".

Brittlebush

Encelia farinosa (commonly known as brittlebush or brittlebrush), is a common desert shrub of northern Mexico (Baja California, Baja California Sur, Sonora, Sinaloa, and Hidalgo) and the southwestern United States (California, Arizona, Utah, and Nevada).

California fuchsia

Epilobium canum, also known as California fuchsia or Zauschneria, is a species of willowherb in the evening primrose family (Onagraceae). It is native to dry slopes and in chaparral of western North America, especially California. It is a perennial plant, notable for the profusion of bright scarlet flowers in late summer and autumn.

Palmer's goldenbush

Ericameria palmeri (Palmer's goldenbush) is a North American species of flowering shrubs in the daisy family. It is native to southern California in the United States and to the state of Baja California in Mexico.

California Buckwheat

Eriogonum fasciculatum is a species of wild buckwheat known by the common names California buckwheat and eastern Mojave buckwheat.

Erodium cicutarium

common eucrypta

Eucrypta chrysanthemifolia is a species of flowering plant in the waterleaf family known by the common name spotted hideseed.

Spotted spurge

Euphorbia maculata, variously called spotted spurge or prostrate spurge, the latter name not to be confused with Euphorbia prostrata, is a fast-growing annual plant in the family Euphorbiaceae, native to North America. It is a common garden and lawn weed in the United States.

Whitemargin Sandmat

Euphorbia albomarginata (formerly Chamaesyce albomarginata), whitemargin sandmat or rattlesnake weed, is a small low-growing annual, in the spurge family (Euphorbia, Euphorbiaceae) native to desert, chaparral, and grassland habitats of southwestern North America, from southern and central California to Northern Mexico and Louisiana.

smallseed sandmat

prostrate sandmat

Euphorbia prostrata is a species of spurge known by the common name prostrate spurge or prostrate sandmat.

climbing milkweed

Funastrum cynanchoides (formerly called Sarcostemma cynanchoides), fringed twinevine, twining milkweek or climbing milkweed, is a perennial plant in the Dogbane Family (Apocynaceae) that grows twining through other plants in the Mojave Desert and Sonoran Desert. It has milky sap and smells pungent. It is similar to Funastrum hirtellum.

chaparral gilia

Gilia angelensis is a species of flowering plant in the phlox family known by the common name chaparral gilia. It is native to the coastal hills and mountains of California and Baja California, where it is a member of the chaparral ecosystem., especially in the Transverse Ranges.

California matchweed

Gutierrezia californica is a North American species of flowering plant in the daisy family known by the common names San Joaquin snakeweed and California matchweed. It is native to California and Arizona in the United States and Baja California in Mexico. It grows in sunny sandy or rocky areas in grasslands, scrub, or open woodlands.

saw-toothed goldenbush

Hazardia squarrosa is a North American species of shrub in the daisy family known by the common name sawtooth goldenbush. It is native to California in the United States and Baja California in Mexico.

Toyon

Heteromeles arbutifolia (/ˌhɛtɪroʊˈmiːliːz ɑːrˌbjuːtɪˈfoʊliə/; more commonly /ˌhɛtəˈrɒməliːz/ by Californian botanists), commonly known as toyon, is a common perennial shrub native to extreme southwest Oregon, California, Baja California, and British Columbia. It is the sole species in the genus Heteromeles.

Shortpod Mustard

Smooth Cat's Ear

Coastal Goldenbush

Isocoma menziesii is a species of flowering plant in the daisy family, known by the common name Menzies' goldenbush.

chaparral beardtongue

Keckiella antirrhinoides (formerly Penstemon antirrhinoides) is a species of flowering shrub in the plantain family known by the common names snapdragon penstemon and chaparral beardtongue.

prickly lettuce

Shining Pepperweed

Lepidium nitidum, known by the common name shining pepperweed, is a species of flowering plant in the mustard family.

chaparral bush-mallow

Malacothamnus fasciculatus, with the common names chaparral mallow and Mendocino bushmallow, is a species of flowering plant in the mallow family. It is found in far western North America....

Cliff Aster

laurel sumac

Malosma is a plant genus which contains only a single species, Malosma laurina, with the common names laurel sumac and lentisco (Spanish). Malosma laurina is found along the Southern California and Baja California Peninsula coasts of the Pacific Ocean.

cheeseweed mallow

Marah macrocarpus

Marah macrocarpus or Marah macrocarpa, the Chilicothe, wild cucumber, or bigroot, is a species of the Marah genus....

White Horehound

Marrubium vulgare (white horehound or common horehound) is a flowering plant in the mint family (Lamiaceae), native to Europe, northern Africa, and southwestern and central Asia. It is also widely naturalized in many places, including most of North and South America.

medicks

orange bush monkeyflower

Diplacus aurantiacus, the sticky monkey-flower or orange bush monkey-flower, is a flowering plant that grows in a subshrub form, native to southwestern North America from southwestern Oregon south through most of California. It is a member of the lopseed family, Phrymaceae. It was formerly known as Mimulus aurantiacus.

Wishbone Bush

Mirabilis laevis, desert wishbone-bush, is a recently redefined species of flowering plant in the four o'clock family. Distribution is in the Southwestern United States and northwest Mexico.

tree tobacco

Coastal Pricklypear

Opuntia littoralis is a species of prickly pear cactus known by the common name coastal pricklypear. It is sometimes called the sprawling prickly pear due to its short stems and habit of growing close to the ground. "Littoral" means "pertaining to the seashore".

sagebrush combseed

distant phacelia

Phacelia distans is a species of flowering plant in the borage family, Boraginaceae, known by the common names distant phacelia and distant scorpionweed. It is native to the southwestern United States and northern Mexico, where it grows in many types of habitat, including forest, woodland, chaparral, grassland, and meadows.

wild canterbury bells

Phacelia minor, with the common names Whitlavia and wild Canterbury bells, is a species of phacelia. It is native to Southern California and Baja California, where it grows in the Colorado Desert and the coastal and inland mountains of the Transverse-Peninsular Ranges, often in chaparral and areas recently burned.

Cooper's Popcornflower

Plagiobothrys collinus is a species of flowering plant in the borage family known by the common name Cooper's popcornflower.

two-color rabbit tobacco

California cudweed

Pseudognaphalium californicum (syn. Gnaphalium californicum) is a species of flowering plant in the daisy family known by several common names, including ladies' tobacco, California rabbit tobacco, California cudweed, and California everlasting.

castor bean

Prickly Russian Thistle

white sage

Salvia apiana (white sage, bee sage, or sacred sage) is an evergreen perennial shrub that is native to the southwestern United States and northwestern Mexico, found mainly in the coastal sage scrub habitat of Southern California and Baja California, on the western edges of the Mojave and Sonoran deserts.

black sage

Salvia mellifera (black sage) is a small, highly aromatic, evergreen shrub of the genus Salvia (the sages) native to California, and Baja California, Mexico. It is common in the coastal sage scrub of Southern California and northern Baja California. Black sage has a dark appearance, especially during drought.

Sambucus mexicana

...

Peruvian Pepper Tree

California beeplant

Scrophularia californica is a flowering plant in the figwort family which is known by the common names California figwort and California bee plant.

common groundsel

Senecio vulgaris, often known by the common names groundsel:764 and old-man-in-the-Spring, is a flowering plant in the daisy family Asteraceae. It is an annual herb, native to Europe and widely naturalised as a ruderal species in suitable disturbed habitats worldwide.

Small-flowered Catchfly

Silene gallica is a species of flowering plant in the family Caryophyllaceae known by several common names, including common catchfly, small-flowered catchfly, and windmill pink. It is native to Eurasia and North Africa, but it can be found throughout much of the temperate world as a common roadside weed.

milk thistle

London rocket

greenspot nightshade

Solanum douglasii is a species of plant in the family Solanaceae known by the common name greenspot nightshade.

purple nightshade

Solanum xanti, known commonly as chaparral nightshade, purple nightshade, and San Diego nightshade, is a member of the genus Solanum. It is native to the Western United States in Arizona, California, Nevada, and Oregon, and to northwest Mexico in Baja California....

prickly sowthistle

Sonchus asper, the prickly sow-thistle, rough milk thistle, spiny sowthistle, sharp-fringed sow thistle, or spiny-leaved sow thistle, is a widespread plant in the dandelion tribe within the daisy family.

Common Sow-thistle

Sonchus oleraceus, with many common names including common sowthistle, sow thistle, smooth sow thistle, annual sow thistle, hare's colwort, hare's thistle, milky tassel, milk thistle, soft thistle, or swinies, is a plant in the dandelion tribe within the daisy family.

Pacific poison oak

Dwarf Nettle