Ionactis, common name stiff-leaved asters or ankle-asters, is a small genus of plants belonging to the family Asteraceae. These aster-like plants are endemic to North America. One species is widespread across much of the eastern half of the continent, while two others are rare endemics with very restricted ranges.
Agoseris is a small genus of annual or perennial herbs in the family Asteraceae described as a genus in 1817.
Erigeron breweri is a North American species of flowering plants in the family Asteraceae known by the common name Brewer's fleabane.
Erigeron eatonii is a North American species of flowering plants in the family Asteraceae known by the common name Eaton's fleabane.
Erigeron pygmaeus is a species of flowering plant in the family Asteraceae known by the common name pygmy fleabane, or pygmy daisy.
Eriophyllum confertiflorum, commonly called golden yarrow or yellow yarrow, is a North American species of plant in the family Asteraceae, native to California and Baja California. It has wooly leaves when young, and yellow flower heads. "Eriophyllum" means "wooly leaved."
Helianthella californica is a species of flowering plant in the family Asteraceae known by the common name California helianthella. This wildflower is native to the mountains of California, northwestern Nevada, and southwestern Oregon.
Agoseris apargioides is a species in the family Asteraceae, is commonly called seaside agoseris or seaside false-dandelion. It is native to the Pacific coast of the United States from Washington to central California, where it grows primarily on coastal dunes.
Agoseris aurantiaca is a species of plant in the family Asteraceae, commonly called orange agoseris or mountain dandelion. It is widespread in western North America.
Agoseris glauca is a species of flowering plant in the family Asteraceae known by the common names false dandelion, pale agoseris, prairie agoseris, and short-beaked agoseris. It is native to western North America.
Agoseris grandiflora is a North American species of flowering plant in the family Asteraceae known by the common names California dandelion, bigflower agoseris, and grassland agoseris.
Crepis bakeri is a species of flowering plant in the family Asteraceae known by the common name Baker's hawksbeard. It is native to the western United States where it grows in many types of mountain and plateau habitat. It is found in Oregon, Washington, Idaho, northern California, Nevada, and Utah.
Agoseris retrorsa is a North American species of flowering plant in the family Asteraceae known by the common name spearleaf agoseris or spearleaf mountain dandelion.
Erigeron petrophilus is a species of flowering plant in the family Asteraceae known by the common names rockloving erigeron or cliff fleabane. It is native to the mountain ranges of California from Siskiyou County south as far as San Luis Obispo County and El Dorado County. It also grows in southwestern Oregon.
Holocarpha heermannii is a species of flowering plant in the family Asteraceae known by the common name Heermann's tarweed. It is endemic to California.
Nothocalais alpestris is a species of flowering plant in the family Asteraceae known by the common name alpine lake false dandelion. It is native to the Cascade Range, Sierra Nevada and other mountains from northern Washington to central California, where it grows in subalpine forests and meadows, most commonly at 1,200–2,700 m (4,000–9,000 ft) elevation.
Agoseris heterophylla is a liguliferous species in the family Asteraceae known by the common name annual agoseris or mountain dandelion. It is widespread in mostly drier regions of western North America from British Columbia to Baja California.
Agoseris hirsuta is a North American species of flowering plants in the family Asteraceae known by the common name Coast Range agoseris or woolly goat chicory. It grows only in the Coast Ranges along the Pacific coast of California, from Humboldt County to San Luis Obispo County.
Agoseris parviflora is a North American species of flowering plants in the family Asteraceae known by the common name Steppe agoseris or sagebrush agoseris or false dandelion. It is found in the Western United States primarily in the Great Basin and the region drained by the Colorado River but also in the eastern foothills of the Sierra Nevada and on the western edge of the Great Plains. Its range extends from eastern Oregon and eastern California to Wyoming, Colorado, and New Mexico, with a few isolated populations in western Kansas and western South Dakota.
Arnica ovata is a North American species of flowering plant in the family Asteraceae, known by the common name sticky leaf arnica. It is native to western Canada, and the western United States.
