Bidens dichotoma (Hillebr.) Sherff , Bot. Gaz. (Crawfordsville) 70: 98. 1920. Flora of the Hawaiian Islands --Basionym
Type Information
Campylotheca dichotoma Hillebr. , Fl. Hawaiian Isl. 212 1888.
Maui: West Maui, mountains, near Waikapu. H. Mann and W.T. Brigham 450.
Syntype [BISH].

Note: Hillebrand cited "Maui! collected above Maalaea or on Haleakala" (no material found at BISH). He also cited Mann and Brigham 450, but it's not clear whether that collection should be considered a syntype. Apparently there is a sheet of Mann & Brigham 450 at GH also.

=Bidens micrantha subsp. micrantha
*Verification: R.K. Shannon, W.L. Wagner.

Note: Nom. illegit. Non Bidens dichotoma Desf., Tabl. ed. 1. 108. 1804 (nomen nudum) nec Bidens dichotoma Desf., Cat. Pl. Hort. Reg. Par. ed. 3. 185. 1829. Be sure to check both Desf. publications.

*Verification: None.