Allium validum is a species of flowering plant commonly called swamp onion, wild onion, Pacific onion, or Pacific mountain onion. It is native to the Cascade Range, to the Sierra Nevada, the Rocky Mountains, and other high-elevation regions in California, Oregon, Washington, Nevada, Idaho and British Columbia. It is a perennial herb and grows in swampy meadows at medium and high elevations.
Anthemis arvensis, also known as corn chamomile, mayweed, scentless chamomile, or field chamomile is a species of flowering plant in the genus Anthemis, in the aster family. It is used as an ornamental plant.
Ribes bracteosum, the stink currant, is a species of currant native to western coastal North America from southeastern Alaska to Mendocino County in California.
Arctotis stoechadifolia, the African daisy or white arctotis, is a rare species of South African plants in the family Asteraceae. It is a rare plant found only in sand dunes along the west coast of Cape Province.
Calochortus clavatus is a species of mariposa lily known by the common name clubhair mariposa lily. It is endemic to California where it is found in forests and on chaparral slopes.
Arctotheca is a small genus of flowering plants in the family Asteraceae. They are annuals or perennials native to southern Africa. It is becoming an invasive weed in other parts of the world.
Calochortus monophyllus is a North American species of flowering plants in the lily family known by the common name yellow star-tulip.
Chaenactis santolinoides is a species of flowering plant in the daisy family known by the common name Santolina pincushion. It is found in California.
Madia gracilis is a species of flowering plant in the family Asteraceae known by the common names grassy tarweed, slender tarweed, and gumweed madia.
Malva nicaeensis is a species of flowering plant in the mallow family known by the common names bull mallow and French mallow.
Ranunculus eschscholtzii is a species of buttercup flower known by the common name Eschscholtz's buttercup.
Rubus ulmifolius is a species of wild blackberry known by the English common name elmleaf blackberry or thornless blackberry and the Spanish common name zarzamora. It is native to Europe and North Africa, and has also become naturalized in parts of the United States, Australia, and southern South America.
Rumex salicifolius is a species of flowering perennial plant in the knotweed family known by the common names willow dock and willow-leaved dock. It is native to much of western North America, and more specifically, in southern and central parts of California, and some parts of Arizona and Nevada. It can also be found in parts of Europe as an introduced species and a roadside weed. It is an extremely variable plant which is generally divided into many varieties, some of which may actually be specimens of other species.
Artemisia cana is a species of sagebrush native to western and central North America; it is a member of the sunflower family. It is known by many common names, including silver sagebrush, sticky sagebrush, silver wormwood, hoary sagebrush, and dwarf sagebrush.
Dittrichia graveolens, commonly known as stinkwort or stinking fleabane, is a plant species in the sunflower family, native to southern Europe, North Africa, and western Asia as far east as Pakistan. It has become naturalized in California, Asia, Africa, Australia, and other places and is regarded as a noxious weed in some regions. It is a classified as an invasive species in California, and a potential threat to wine production in the state.
Cardamine douglassii, the limestone bittercress or purple cress, is a perennial forb native to the eastern and central United States as well as the province of Ontario in Canada, that produces white to pink or purple flowers in early spring.
Dimorphotheca pluvialis, common names white African daisy, Cape marigold, weather prophet, Cape rain-daisy, ox-eye daisy, Cape daisy or rain daisy, is a plant species native to South Africa and Namibia. It is sparingly naturalized in scattered locations in California.
Arctostaphylos nortensis, common name Del Norte manzanita, is a shrub narrowly endemic to the mountains along the Oregon/California state line. It has been reported from only 3 counties: Del Norte County, California; and Curry and Josephine Counties in Oregon. The plant grows in chaparral and open forests at elevations of 400–600 m (1,300–2,000 ft), occasionally on serpentine.
Arctotheca prostrata is a plant in the family Asteraceae native to Namibia and the Cape Provinces of South Africa. Common names include prostrate Cape weed and creeping bear's-ear. It is listed as an invasive weed in California and Australia.
Deinandra kelloggii, Kellogg's spikeweed or Kellogg's tarweed, is a North American species of plant in the tribe Madieae within the family Asteraceae. It is native to Baja California, southern and central California, and Arizona.
