Bidens frondosa Linnaeus. Devil's Beggar-ticks. Phen: Jun-Oct. Hab: Fields, pastures, wet meadows, swamp forests, ditches. Dist: Nova Scotia and AK south to FL, TX, CA, and southward.

Origin/Endemic status: Native

Synonymy: = Ar, C, Fl7, FNA21, G, GrPl, GW2, Il, K1, K3, K4, Mi, NcTx, NE, NY, NY, Oh3, Ok, Pa, RAB, S, SE1, Tn, Va, W, WH3; > Bidens frondosa L. var. anomala Porter – F; > Bidens frondosa L. var. frondosa – F, Sherff & Alexander (1955)

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