Bahiopsis is a genus of North American flowering plants in the tribe Heliantheae within the family Asteraceae. It is native to the southwestern United States and northwestern Mexico, with several of the species endemic to the Baja California Peninsula (States of Baja California and Baja California Sur).Kellogg, Albert. 1863. Proceedings of the California Academy of Sciences 2: 35–36 in EnglishFlora of North America Vol. 21 Page 174 Bahiopsis Kellogg, Proc. Calif. Acad. Sci. 2: 35. 1863.
Botanists Schilling & Panero in 2002 and 2011, studied the subtribe Helianthinae based on molecular sequences of nuclear ITS, ETS, and cpDNA, coming to a conclusion that the genus Viguiera , did not constitute a monophyletic group. Among their conclusions they proposed to reclassify the genus, dividing and relocating its species in at least eleven genera: Aldama , Bahiopsis , Calanticaria , Davilanthus , Dendroviguiera , Gonzalezia , Heiseria , Heliomeris , Hymenostephium , Sidneya and Viguiera .
Species As accepted;Flann, C (ed) 2009+ Global Compositae Checklist Biota of North America Program 2013 county distribution maps
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