Doellingeria
 Doellingeria is a genus of flowering plants in the aster family Asteraceae. It contains three species native to eastern North America which are now usually treated as separate from genus Aster. They are known commonly as tall flat-topped asters or whitetops.Some authorities include up to 10 or 11 species in Doellingeria but phylogenetic analyses suggest that any Asian plants in the genus should be classified in Aster making Doellengeria a North American genus of 3 species.