Bidens hillebrandiana (Drake) O. Deg. , in Sherff, Bot. Gaz. (Crawfordsville) 85: 6. 1928.
Bidens hillebrandiana (Drake) O. Deg. subsp. polycephala Nagata & Ganders, Lyonia 2: 4. 1983.
Type information:
Holotype
[BISH]. K. Nagata 1897. 5 June 1979. Maui: East Maui, Makawao District, W end of Maliko Bay, on ledge of sea cliffs,.25m.
=Bidens hillebrandiana subsp. polycephala