Asclepias incarnata Linnaeus ssp. incarnata . Western Swamp Milkweed. Phen: Jul-Sep; Aug-Oct. Hab: Swamps, marshes, especially over calcareous substrates, such as limestone or calcareous shale. Dist: ME and s. QC west to MB, south to VA, s. TN (Chester, Wofford, & Kral 1997), AR, TX, and CO; disjunct in TX, NM, and UT.
Origin/Endemic status: Native
Synonymy: = Ar, FNA14, K1, K3, K4, Mo2, NcTx, NY, Pa, RAB, Tn, W, Woodson (1954); = Asclepias incarnata L. – S; = Asclepias incarnata L. var. incarnata – C, F, G, GW2, NE, Tat, Tx, Va; < Asclepias incarnata L. – Fl5, GrPl, Il, Mi, Ok, WH3
Wetland Indicator Status:
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