Melampodium is a genus of flowering plants in the sunflower family.
Roldana also known as groundsel is a genus of large herbs or subshrubs from the tribe groundsel tribe within the sunflower family.
Microspermum is a genus of Mexican flowering plants in the tribe Eupatorieae within the family Asteraceae.
Oxylobus is a genus of Mesoamerican flowering plants in the tribe Eupatorieae within the family Asteraceae.
Tetrachyron is a genus of Mesoamerican plants in the tribe Heliantheae within the family Asteraceae.
Tridax is a genus of flowering plants in the family Asteraceae.
Desmanthodium is a genus of flowering plants in the family Asteraceae.
Sabazia is a genus of Colombian and Mesoamerican plants in the tribe Millerieae within the family Asteraceae.
Simsia is a genus of flowering plants in the tribe Heliantheae within the family Asteraceae. It includes annuals, herbaceous perennials, and shrubs. They range from the western United States south through Central and South America to Argentina, with the center of diversity occurring in Mexico. The genus is named for British physician and botanist John Sims (1749–1831). Although some species are relatively rare, others have become common weeds that line the roadsides and fields of Mexico, often forming dense stands mixed with Tithonia and other Asteraceae. Some species are known by the common name bushsunflower.
Sinclairia is a genus of Latin American plants in the Liabeae tribe within the daisy family.
Lepidonia is a genus of Mesoamerican flowering plants in the daisy family.
Lundellianthus is a genus of Mesoamerican flowering plants in the tribe Heliantheae within the family Asteraceae.
Montanoa is a genus of flowering plants in the tribe Heliantheae, within the family Asteraceae.
Osbertia is a genus of Mesoamerican flowering plants in the family Asteraceae.
Otopappus is a genus of flowering plants in the tribe Heliantheae within the family Asteraceae, primarily Mesoamerican but with one species from Jamaica.
Rensonia is a genus of Mesoamerican plants in the tribe Heliantheae within the family Asteraceae.
Rumfordia is a genus of Mesoamerican plants in the tribe Millerieae within the family Asteraceae.
Perymenium is a genus of South American and Mesoamerican plants in the tribe Heliantheae within the family Asteraceae.
Pinaropappus, common name rocklettuce, is a genus of flowering plants in the tribe Cichorieae within the family Asteraceae, native to Mesoamerica and the southwestern United States.
Podachaenium is a genus of Mesoamerican plants in the tribe Heliantheae within the family Asteraceae.
