The Senecioneae in Mexico are represented by 22 genera and about 242 species. Along with Central America, Mexico is considered an important concentration site of species of the tribe. Ten genera and 28 species are shared with North America whereas 12 genera and 38 species also occur in Central America. Results indicate that members of the tribe concentrate along the Transvolcanic Belt and southern Mexico.
Special emphasis is put on the endemic element.
With these analyses, the important biogeographical areas for the tribe in Mexico are defined, and its relevance for conservation is discussed.