Lythrum alatum Pursh. Northern Winged Loosestrife. Phen: Jun-Sep. Hab: Calcareous meadows, marl fens, and disturbed wet calcareous places. Dist: ME, NY, MI, and ND south to sc. VA, e. TN, nw. GA, n. AL, n. AR, ne. OK, and CO; allegedly disjunct in Citrus County (Graham 1975; Wunderlin, Hansen, & Franck 2017).

Origin/Endemic status: Native

Taxonomy Comments: See discussion in Graham (1975) about unresolved issues of typification and southern records of L. alatum (as here treated).

Synonymy: = F, Il, Mi, Pa, S, Va, W, WV; = Lythrum alatum Pursh ssp. alatum – NE, Haines (2010); = Lythrum alatum Pursh var. alatum – Ar, C, Fl4, FNA10, G, GrPl, GW2, K1, K3, K4, NY, Tn, WH3, Graham (1975); > Lythrum dacotanum Nieuwl. – Tx

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