Bidens vulgata Greene. Phen: Aug-Oct. Hab: Fields, marshes, wet places. Dist: QC and BC south to GA, LA, and CA.
Origin/Endemic status: Native
Synonymy: = Ar, C, FNA21, G, GrPl, GW2, Il, K1, K3, K4, Mi, NE, NY, Oh3, Ok, Pa, RAB, S, SE1, Tn, Va, W; > Bidens vulgata Greene var. schizantha Lunell – F; > Bidens vulgata Greene var. vulgata – F, Sherff & Alexander (1955)