Lysimachia thyrsiflora Linnaeus. Tufted Loosestrife. Phen: May-Jul. Hab: Bogs, swamps, marshes. Dist: Circumboreal, south in North America to NJ, PA, OH, and MO (Kartesz 1999), WV (FNA), and MD (from Big Marsh, Kent County) (Steury, Tyndall, & Cooley (1996), NE, CO, UT, and CA.

Origin/Endemic status: Native

Synonymy: = C, F, FNA8, GrPl, K1, K3, K4, Mi, NE, NY, Pa; = Naumbergia thyrsiflora – Il, orthographic error; = Naumburgia thyrsiflora (L.) Duby – G

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