Melampodium is a genus of flowering plants in the sunflower family.
Palafoxia, or palafox, is a genus of North American flowering plants in the Bahia tribe within the Asteraceae.
Porophyllum is a genus of flowering plants in the tribe Tageteae within the family Asteraceae known commonly as the poreleaf genus.
Uropappus, commonly called silverpuffs, is a genus of North American plants in the tribe Cichorieae within the family Asteraceae. Some authors accept only one species, U. lindleyi, and separate Stebbinsoseris.
Trixis is a genus of shrubs in the family Asteraceae, native to North and South America including the West Indies.
Parthenium is a genus of North American annuals, biennials, perennials, subshrubs, and shrubs in the tribe Heliantheae within the family Asteraceae and subfamily Asteroideae.
Thymophylla is a genus of perennial flowering plants in the tribe Tageteae within the family Asteraceae. Pricklyleaf is a common name for plants in this genus.
Hedeoma is a genus of flowering plants in the mint family, Lamiaceae. It is native to North and South America. They are commonly known as false pennyroyals.
Malacothrix is a genus of plants in the tribe Cichorieae within the family Asteraceae. They are known generally as desert dandelions or desertdandelions. Most are native to western North America although a few have been introduced to South America. Several are found only on offshore islands in the Pacific.
Townsendia is a genus of North American plants in the tribe Astereae within the family Asteraceae.
Senecio flaccidus, formerly recorded as Senecio douglasii, member of the daisy family and genus Senecio also known as threadleaf ragwort, is a native of the southwestern Great Plains of North America.
Lycurus is a small genus of New World plants in the grass family, native to North and South America.
Laennecia or Laënnecia is a genus of flowering plants in the family Asteraceae. The plants are native to Mesoamerica, South America, and the southwestern United States. Common name is "horseweed."
Xanthisma, common name sleepy-daisy, is a genus of flowering plants in 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.
Schkuhria is a genus of flowering plants in the tribe Bahieae within the family Asteraceae. False threadleaf is a common name. The genus was named in honour of Christian Schkuhr (1741-1811), a German gardener and physical scientist at the University of Wittenberg.
Lygodesmia, called skeletonplant, is a genus of North American flowering plants in the tribe Cichorieae 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.
Tridens is a genus of perennial grasses in the family Poaceae native to the Americas.
Chondrosum is a genus of North American and South American plants in the grass family.
