Desmodium canadense (Linnaeus) A.P. de Candolle. Showy Tick-trefoil, Canadian Tick-trefoil. Phen: Jul-Sep; Aug-Oct. Hab: Marl marshes, Thuja swamps, springs, seeps, hay meadows, streambanks, prairies, usually associated with calcareous substrates. Dist: QC and NS west to AB, south to n. VA, sw. VA, c. WV, MO, and OK. Small (1933) reports this species for NC; no documentation has been seen.

Origin/Endemic status: Native

Synonymy: = C, F, FNA11.1, G, GrPl, Il, K1, K3, K4, Mi, NE, NY, Pa, SE3, Tat, Tx, Va, W, WV, Isely (1998); = Meibomia canadensis (L.) Kuntze – S, S13; = n/a – RAB

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FAC
• Eastern Mountains and Piedmont: FAC
• Great Plains: FAC
• Midwest: FACU
• Northcentral & Northeast: FAC

Heliophily: 8