*Senna obtusifolia (Linnaeus) H.S. Irwin & Barneby. Sicklepod, Coffeeweed. Phen: Jul-Sep; Aug-Nov. Hab: Fields (especially soybean fields), disturbed areas. Dist: Probably native of the New World Tropics. The species is now pantropical.
Origin/Endemic status: Neotropics
Synonymy: = Ar, C, GrPl, Il, K1, K3, K4, Mo2, NcTx, NE, NY, Pa, SE3, Tn, Va, WH3, Irwin & Barneby (1982), Isely (1998), Robertson & Lee (1976); = Cassia obtusifolia L. – Bah, RAB, Tx, W, Isely (1975); < Cassia tora L. – F, G, misapplied; < Emelista tora (L.) Britton & Rose – S, misapplied
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