Family Code: ASTERA Genus Code: DOELL2 Genus CN: whitetop Genus Authority: Nees Genus Summary: A genus of about 3-4 species, perennial herbs, of e. North America. The separation of Doellingeria from Aster as a small, strictly North American group is clearly warranted, based on numerous studies, including Nesom (1993d), Brouillet et al. (2009), and Noyes & Rieseberg (1999). Genus References: Semple & Chmielewski in FNA (2006b); Semple, Chmielewski, & Leeder (1991)=Y; Brouillet et al. (2009); Nesom (1993d)=Z; Cronquist (1980)=SE; Nesom (2000b). Last Updated: 2019-11-29 Publish: 1