Amaranthus powellii S. Watson ssp. powellii. Common name: Green Amaranth, Powell's Amaranth. Phenology: Jul-Oct. Habitat: Arroyos, disturbed areas. Distribution: Native of w. and sc. North America, south to Mexico. Widespread and common in Pennsylvania (Rhoads & Klein 1993); many earlier reports of A. retroflexus may actually pertain to this species.
Origin/Endemic status: Native
Synonymy ⓘ: = Can, Mo2, NE, NS, NY, Costea & Tardif (2003b); = Amaranthus retroflexus L. var. powellii (S.Watson) Boivin; = n/a — RAB, WH3; < Amaranthus powellii S. Watson — Ar, C, F, FNA4, G, GrPl, Il, K1, K4, Mex, Mi, Pa, POWO, S13, Tx, Bayón (2015). Basionym: Amaranthus powellii S. Watson 1875
Links to other floras: < Amaranthus powellii - FNA4
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Heliophily ⓘ: 9
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