Ageratina, commonly known as snakeroot, is a genus of more than 330 perennials and rounded shrubs in the family Asteraceae.
Eupatorieae is a tribe of over 2000 species of plants in the family Asteraceae. Most of the species are native to tropical, subtropical, and warm temperate areas of the Americas, but some are found elsewhere. Well-known members are Stevia rebaudiana, a number of medicinal plants (Eupatorium), and a variety of late summer to autumn blooming garden flowers, including Ageratum (flossflower), Conoclinium (mistflower), and Liatris.
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.
Trichocoronis is a genus of North American aquatic plants in the tribe Eupatorieae within the family Asteraceae. Bugheal is a common name for plants in this genus.
Asanthus is a small genus of flowering plants in the family Asteraceae, found only in northern Mexico and the southwestern United States.
Barroetea is a genus of flowering plants in the family Asteraceae.
Decachaeta is a genus of Mesoamerican flowering plants in the family Asteraceae.
Dyscritogyne is a genus of Mexican flowering plants in the family Asteraceae.
Hofmeisteria is a genus of Mexican flowering plants in the family Asteraceae.
Jaliscoa is a genus of Mexican flowering plants in the family Asteraceae.
Kyrsteniopsis is a genus of Mexican flowering plants in the family Asteraceae.
Oxylobus is a genus of Mesoamerican flowering plants in the tribe Eupatorieae within the family Asteraceae.
Pachythamnus is a genus of Mesoamerican flowering plants in the tribe Eupatorieae within the family Asteraceae.
Phanerostylis is a genus of Mexican plants in the tribe Eupatorieae within the family Asteraceae.
Piqueria is a genus of Caribbean and Mesoamerican plants in the tribe Eupatorieae within the family Asteraceae.
Spaniopappus is a genus of Cuban plants in the tribe Eupatorieae within the family Asteraceae.
Steviopsis is a genus of Mexican plants in the tribe Eupatorieae within the family Asteraceae.
Ageratina paupercula, called the Santa Rita snakeroot, is a North American species of shrubs or perennial herbs in the family Asteraceae. It is found only in the states of Arizona, Sonora, Chihuahua, Durango, Nayarit, and Jalisco.
Ageratina thyrsiflora is a North American species of plants in the family Asteraceae. It is native mostly to northwestern Mexico. The range extends just barely into the United States, a single herbarium specimen having been collected in 1929 just north of the border town of Nogales, Arizona.
