Squamopappus gen. nov. and Redefinition of Podachaenium (Compositae: Heliantheae)

Publisher Website
Google Scholar
Abstract
Podachaenium as heretofore constituted contains two very unlike elements, the arborescent, white-rayed, globose-headed P. eminens and the yellow-rayed P. skutchii. The latter species is here transferred to a new, monotypic genus as Squamopappus skutchii. Verbesina (Altamirania, Aspiliopsis) pachyphylla, also an arborescent, white-rayed species with globose heads, is transferred into Podachaenium, thereby redefining the genus to include only P. eminens and P. pachyphyllum. A key to the genera, and to their apparent generic allies, is presented.