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Doellingeria Nees. Flat-topped Aster.

Key to Doellingeria

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), Noyes & Rieseberg (1999), and Nesom (2020a). The Asian species sometimes placed in Doellingeria are not closely related to American Doellingeria and have been separated into the genus Cardiagyris Nesom (Nesom 2020a). Allen et al. (2019) proposed combining western North American Eucephalus with Doellingeria. Given the conflicting phylogenetic data, the uncertain origin of Eucephalus elegans, and a 'whole evidence' synthetic approach based on molecular, morphological, and biogeographic data, we conservatively retain Doellingeria as a small genus endemic to eastern North America, following Nesom (2020a, 2022d) and recent community consensus. Semple (2023b) presented additional evidence suggesting the combination of Eucephalus and Doellingeria. Species in our region will retain the name Doellingeria if combined.

Ref: Allen et al. (2019); Brouillet et al. (2009); Cronquist (1980); Nesom (1993d); Nesom (2000b); Nesom (2020a); Nesom (2022d); Noyes & Rieseberg (1999); Semple (2023b); Semple & Chmielewski (2006) In Flora of North America Editorial Committee (2006b); Semple, Chmielewski, & Leeder (1991); Sorrie (2022) In Weakley et al. (2022). Show full citations.

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