Bidens ctenophylla Sherff , Bot. Gaz. (Crawfordsville) 85: 5. 1928.
Type information:
Holotype [F]. O. Degener and H. Wiebke 2128. 22 August 1926. Hawai`i: between Pu`uwa`awa`a and Hu`ehu`e, arid weed-covered `a`a slopes. Isotype(s) [B [PD], BISH!, BM, F, HAW, K, P].
=Bidens micrantha subsp. ctenophylla