Bidens atkinsoniana (Douglas ex Lindl.) Banfi, Galasso & Bartolucci, comb. nov.

Bas.: Coreopsis atkinsoniana Douglas ex Lindl., Edward’s Bot. Reg., 16: pl. 1376. 1830 [Mar-Dec 1830].

Note: some authors (e.g., Strother, 2006) consider this species as a synonym of B. tinctoria .