Machaeranthera gymnocephala (DC.) Shinners [ Aster gymnocephalus (DC.) A. Gray]
no HD illustration available (m1)
Machaeranthera gymnocephala (DC.) Shinners [ Brachyactis gymnocephala Rupr.] [Compositae]
W. Curtis, Bot. Mag., vol. 107 [ser. 3, vol. 37]: t. 6549 (1881) [M. Smith]