Bidens sandvicensis Less. var. caduca Sherff, Bot. Gaz. (Crawfordsville) 85: 7. 1928.
Type information:
Holotype [B]. W. Hillebrand s.n.. 1851- 1871. Moloka`i: s.l..

Note: Holotype presumably destroyed. Photo of holotype, negative no. 49756 (F) seen. Holotype was only known collection.

=Bidens micrantha subsp. micrantha
Note: Holotype presumably destroyed. Photo of holotype, negative no. 49756 (F) seen. Holotype was only known collection.

*Verification: None.