Persicaria pensylvanica (Linnaeus) M. Gómez. Section: Persicaria. Pinkweed, Common Smartweed, Pennsylvania Smartweed. Phen: May-Dec. Hab: Disturbed areas, bottomlands. Dist: NL (Newfoundland), ON, MT, and CA, south to FL, TX, AZ, and to c. Mexico; disjunct (perhaps only introduced?) in AK, Ecuador, Europe.

Origin/Endemic status: Native

Synonymy: = Ar, FNA5, K3, K4, Mex, Mi, NE, NY, Pa, Tn, Tx, Va; = Persicaria pennsylvanica (L.) M.Gómez – S, S13, orthographic variant; = Polygonum pensylvanicum L. – C, GW2, K1, NcTx, RAB, W, WH3, WV, Horton (1972); < Persicaria pensylvanica (L.) M.Gómez – Fl4; > Persicaria pensylvanica (L.) M.Gómez var. dura (Stanford) C.F.Reed – Il; > Persicaria pensylvanica (L.) M.Gómez var. laevigata (Fernald) Mohlenbr. – Il; > Persicaria pensylvanica (L.) M.Gómez var. pensylvanica – Il; > Polygonum pensylvanicum L. var. durum Stanford – F; > Polygonum pensylvanicum L. var. eglandulosum Myers – F; > Polygonum pensylvanicum L. var. laevigatum Fernald – F, Tat; > Polygonum pensylvanicum L. var. nesophilum Fernald – F; > Polygonum pensylvanicum L. var. pensylvanicum – F, Tat; > Polygonum pensylvanicum L. var. rosaeflorum Norton – F

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Wetland Indicator Status:

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

Heliophily: 7