Cirsium arizonicum, the Arizona thistle, is a North American species of thistle in the family Asteraceae, native to the southwestern United States and northwestern Mexico. It has been found in Arizona, southeastern California, New Mexico, Nevada, Colorado, Utah, Sonora, and northwestern Chihuahua.
Coreopsis bigelovii is a species of flowering plant in the daisy or sunflower family, Asteraceae, with the common names Bigelow coreopsis and Bigelow's tickseed. It is endemic to California.
Dicoria canescens is a North American flowering plant in the family Asteraceae known by several common names including desert twinbugs and bugseed. This is a desert plant of the southwestern United States and northwestern Mexico, found in Sonora, Baja California, southern California, Nevada, Arizona, Utah, southwestern Colorado, and northwestern New Mexico.
Erigeron utahensis is a North American species of flowering plant in the family Asteraceae known by the common name Utah fleabane.
Ageratina herbacea is a North American species of flowering plants in the family Asteraceae known by the common names fragrant snakeroot and Apache snakeroot. It is native to desert regions of the southwestern United States and northern Mexico. It grows in rocky slopes in conifer forests and woodlands.
Carphochaete is a genus of North American flowering plants in the family Asteraceae. They are native to Mexico and the southwestern United States. They are known commonly as bristleheads.
Bahia bigelovii, or Bigelow's bahia, is a North American species of flowering plants in the family Asteraceae. It is native to the State of Coahuila in Mexico and to the western (trans-Pecos) part of the US state of Texas.
Bidens bigelovii is a North American species of flowering plant in the family Asteraceae. It is native to the southwestern and south-central United States and to Mexico as far south as Oaxaca.
Bidens lemmonii is a North American species of flowering plant in the family Asteraceae. It is native to the southwestern United States and Mexico.
Bidens tenuisecta , the slim lobe beggarticks, is a North American species of flowering plant in the family Asteraceae. It is native to northern Mexico (Chihuahua) and the western United States. There are also reports of populations in the northeastern United States but these are almost assuredly introductions.
Brickellia lemmonii, or Lemmon's brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northeastern and north-central Mexico and the southwestern United States.
Brickellia pringlei, or Pringle's brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northern Mexico and the southwestern United States.
Brickellia rusbyi, the stinking brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northern Mexico and the southwestern United States.
Brickellia simplex, the Sonoran brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northern Mexico and the southwestern United States.
Brickellia betonicifolia, the betonyleaf brickellbush, is a Mexican species of flowering plants in the family Asteraceae. It is native to northwestern Mexico, in the States of Baja California, Sonora, Chihuahua, and Durango and the southwestern United States.
Brickellia floribunda, the Chihuahuan brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northern Mexico and the south-western United States.
Chromolaena ivifolia called ivy-leaf false thoroughwort, or ivyleaf thoroughwort, is a species of flowering shrub in the family Asteraceae. It is native to North America and South America, from the south-eastern United States to Argentina.
Chromolaena bigelovii called Bigelow's false thoroughwort, or Bigelow's thoroughwort, is a North American species of flowering shrub in the family Asteraceae. It is native to northeastern Mexico and the US State of Texas.
Dieteria bigelovii, also known as Bigelow's tansyaster or sticky aster, is a North American species of plants in the family Asteraceae.
Encelia scaposa, common name onehead brittlebush is a North American species of flowering plants in the family Asteraceae. It has been found in western Texas, southwestern New Mexico, and Chihuahua.
