Ageratum is a genus of 40 to 60 tropical and warm temperate flowering annuals and perennials from the family Asteraceae, tribe Eupatorieae. Most species are native to Central America and Mexico but four are native to the United States.
Eupatorieae is a tribe of over 2000 species of plants in the aster family. 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.
Baccharis is a genus of perennials and shrubs in the aster family (Asteraceae). They are commonly known as baccharises but sometimes referred to as "brooms", because many members have small thin leaves resembling the true brooms. They are not at all related to these however, but belong to an entirely different lineage of eudicots. B. halimifolia is commonly known as "groundsel bush", however true groundsels are found in the genus Senecio.
Phalacraea is a genus of South American plants in the boneset tribe within the sunflower family.
Stomatanthes is a genus of African and South American plants in the boneset tribe within the sunflower family.
Acritopappus is a genus of flowering plants in the family Asteraceae described as a genus in 1972.
Austrocritonia is a genus of flowering plants in the family Asteraceae.
Barrosoa is a genus of flowering plants in the family Asteraceae. All the species are endemic to South America:
Decachaeta is a genus of Mesoamerican flowering plants in the family Asteraceae.
Disynaphia is a genus of South American flowering plants in the family Asteraceae.
Grazielia is a genus of South American flowering plants in the family Asteraceae.
Gymnocoronis is a genus of flowering plants in the family Asteraceae.
Heterocondylus is a genus of Latin American flowering plants in the family Asteraceae.
Lasiolaena is a genus of Brazilian flowering plants in the sunflower family.
Oxylobus is a genus of Mesoamerican flowering plants in the boneset tribe within the sunflower family.
Symphyopappus is a genus of South American plants in the boneset tribe within the sunflower family.
Trichogonia is a genus of South American plants in the boneset tribe within the sunflower family.
Proteopsis is a genus of flowering plants in the evil tribe within the sunflower family.
Chresta is a genus of South American flowering plants in the daisy family.
