Persicaria sagittata (Linnaeus) H. Gross ex Nakai. Section: Echinocaulon. Arrowleaf Tearthumb, Arrowvine, Scratch-grass. Phen: May-Dec. Hab: Marshes, bogs, beaver impoundments, wet thickets. Dist: NL (Newfoundland) west to MB, south to Panhandle FL and e. TX; China, Manchuria, India, Siberia, Korea, and Japan.

Origin/Endemic status: Native

Synonymy: = Ar, Fl4, FNA5, K3, K4, Mi, NE, NY, Pa, Tn, Va; = Polygonum sagittatum L. – C, G, GW2, K1, RAB, Tat, Tx, W, WH3, WV, Horton (1972), Mitchell & Dean (1978); = Tracaulon sagittatum (L.) Small – Il, S, S13; = Truellum sagittatum (L.) Soják; > Polygonum sagittatum L. var. gracilentum Fernald – F; > Polygonum sagittatum L. var. sagittatum – F

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Wetland Indicator Status:

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

Heliophily: 7