Eatonella is a North American genus of plants in the family Asteraceae containing the single known species Eatonella nivea, which is called by the common name white false tickhead. This small annual is native to the western United States, particularly the Great Basin, where it grows in sandy soils. It has been found in Washington, Oregon, Idaho, Nevada, and eastern California.
Erigeron inornatus is a North American species of flowering plant in the family Asteraceae known by the common name California rayless daisy, California rayless fleabane, rayless fleabane, Lava rayless fleabane
Chaenactis artemisiifolia, with the common name white pincushion, is a species of flowering plant in the daisy family. It is native to the coastal Peninsular Ranges of Southern California and Baja California, in the chaparral and woodlands.
Arnica viscosa is an uncommon North American species of flowering plant in the family Asteraceae, known by the common name Mount Shasta arnica.
Erigeron muirii, or Muir's fleabane, is a rare Arctic species of flowering plant in the family Asteraceae. It has been found only in northern Alaska and the northern Yukon Territory, including Herschel Island in the Arctic Ocean. It grows in tundra, dry slopes, and rock outcrops.
Kyhosia is a monotypic genus of flowering plants in the family Asteraceae containing the single species Kyhosia bolanderi, which is known by the common names Bolander's madia and kyhosia.
Jensia yosemitana is a species of flowering plant in the family Asteraceae known by the common name Yosemite tarweed. It is endemic to California, where it has a scattered distribution across the Sierra Nevada and its foothills. Some of the populations lie inside Yosemite National Park.
Raillardella is a genus of flowering plants in the tribe Madieae within the family Asteraceae.
Blepharizonia is a genus of flowering plants in the family Asteraceae. There are two species, both endemic to California. They are known generally as big tarweeds.
Raillardella argentea is a species of flowering plant in the family Asteraceae known by the common name silky raillardella. It is native to the Sierra Nevada and nearby mountain ranges of California, its distribution extending east into Nevada and north along the Cascade Range and Klamath Mountains into Oregon. It grows in many types of dry, open mountain habitat. It is a rhizomatous perennial herb growing in a clump of rosetted basal leaves. The leaves are lance-shaped, up to 8 centimeters long, and coated in silky hairs. The plant produces an inflorescence up to about 15 centimeters tall consisting of a solitary flower head which is cylindrical to somewhat bell-shaped. The head is enclosed in the fused outer scales of the flowers, which look similar to the phyllaries of many other species' flower heads. The head contains many yellow disc florets up to a centimeter long each, and no ray florets. The fruit is a long, narrow achene which may be 2 centimeters in length including its plumelike pappus.
Raillardella scaposa is a species of flowering plant in the family Asteraceae known by the common name stem raillardella. It is native to the Sierra Nevada of California and western Nevada and parts of the southern Cascade Range in Oregon, where it grows in varying habitat types, from wet to dry and exposed to shaded. It is a rhizomatous perennial herb growing in a clump of rosetted basal leaves. The leaves are linear to lance-shaped, up to 16 centimeters long, and glandular. The plant produces an inflorescence just a few centimeters to half a meter tall consisting of flower heads which are cylindrical to hemispheric in shape. Each head contains many yellow to orange disc florets and sometimes a few ray florets. The fruit is a long, narrow achene 1 to 2 centimeters in length including its pappus of plumelike bristles.
Arnica dealbata is a species of Californian plants in the tarweed tribe within the aster family
Sherwin John Carlquist FMLS was an American botanist and photographer.
Calycadenia micrantha is an uncommon species of flowering plant in the family Asteraceae known by the common name small-flowered calycadenia. It is endemic to California, where it is known from about 13 occurrences that are widely spread over several counties, including Napa, Siskiyou, Shasta, Mendocino, Trinity, and Monterey Counties, with several populations known in Lake County. It was described to science as a species in 2004. Some specimens of the plant had previously been included within the description of its relative, Calycadenia truncata. The fact that it has been found in relatively far-flung locations suggests it could easily be present in other areas between them and, as a newly classified species, has simply not been reported yet.
Deinandra conjugens is a rare species of flowering plant in the family Asteraceae known by the common names Otay tarplant and Otay tarweed. It is native to a small section of far northern Baja California in Mexico, its range extending north into San Diego County, California, in the United States. One isolated population has been reported from the hills east of Cayucos in San Luis Obispo County.
Deinandra minthornii — — is a rare California species of flowering plant in the family Asteraceae known by the common name Santa Susana tarplant, or Santa Susana tarweed. It is listed as a rare species by the California Department of Fish and Wildlife and on the California Native Plant Society Inventory of Rare and Endangered Plants of California.
Deinandra mohavensis, commonly known as Mojave tarplant or Mojave tarweed, is a species of flowering plant in the family Asteraceae.
Anisocarpus scabridus, the leafy raillardiopsis, is a North American species of flowering plants in the family Asteraceae.
Hymenothrix dissecta is a North American species of flowering plants in the family Asteraceae known by the common names yellow ragweed and ragleaf bahia. It is native to the western United States as far north as the Black Hills of South Dakota and Wyoming, as well as in northern Mexico.
Deinandra halliana, or Hall's tarplant, is a California species of plants in the tribe Madieae within the family Asteraceae. It has been found in the Coast Ranges of Central California, in Monterey, Fresno, San Benito, and San Luis Obispo Counties.
