Hemizonia congesta, known by the common name hayfield tarweed, is a species of flowering plant in the family Asteraceae, native to western North America.
Deinandra is a genus of flowering plants in the tribe Madieae within the family Asteraceae. Such a genus is not recognized as distinct by all authorities; its species are often treated as members of the genus Hemizonia.
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.
Holocarpha virgata is a species of flowering plant in the family Asteraceae known by the common names yellowflower tarweed, pitgland tarweed, and narrow tarplant.
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.
Carlquistia is a rare North American genus of flowering plants in the family Asteraceae containing the single species Carlquistia muirii. Formerly named Raillardiopsis muirii, the plant was reexamined in the 1990s and moved to a new genus of its own, separate from similar and closely related genera, such as Madia. Common names for the species include Muir's tarplant, Muir's raillardiopsis, and Muir's raillardella.
Deinandra bacigalupii is a rare species of flowering plant in the family Asteraceae, known by the common names Livermore tarplant and Livermore moonshine. It is endemic to Alameda County, California, where there are only about five known occurrences around Livermore. It grows in open areas with alkali soils, such as alkali sinks and meadows. This plant was previously included within Deinandra increscens ssp. increscens, but it was separated and elevated to species level in 1999.
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 increscens is a species of flowering plant in the family Asteraceae known by the common name grassland tarweed. It is endemic to California, where it has been found primarily in Monterey, San Luis Obispo and Santa Barbara Counties. A few isolated populations have been reported from Kern and Merced Counties, but these are from urban areas and probably represent cultivated specimens.
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.
Deiandra arida, also called Red Rock tarplant, is a rare California annual plant in the family Asteraceae.
Centromadia parryi, the pappose tarweed, is a species of plant in the tribe Madieae within the family Asteraceae. It is found in North America where it is native to California and, northern Baja California.
Deinandra corymbosa is a rare North American species of plants in the tribe Madieae within the family Asteraceae. A common name is coastal tarweed.
Deinandra greeneana is a rare North American species of plants in the tribe Madieae within the family Asteraceae.
Deinandra palmeri is a rare North American species of plants in the tribe Madieae within the family Asteraceae.
Deinandra streetsii is a rare North American species of plant in the tribe Madieae within the family Asteraceae.
Deinandra lobbii, the threeray tarweed, is a North American species of plants in the tribe Madieae within the family Asteraceae.
Deinandra pentactis, the Salinas River tarweed, is a North American species of plants in the tribe Madieae within the family Asteraceae. It is endemic to California, found in the Coast Ranges of San Benito, Monterey, San Luis Obispo, and northern Santa Barbara Counties.
Deinandra pallida, the Kern tarweed, is a California species of plants in the tribe Madieae within the family Asteraceae. It has been found in the Coast Ranges, southern San Joaquin Valley, and Sierra Nevada foothills in Kern, Los Angeles, Santa Barbara, San Luis Obispo, Tulare, and Kings Counties. Isolated populations have been reported from farther north in Tuolumne County and northwestern Fresno County.
