Persicaria arifolia (Linnaeus) Haraldson. Halberd-leaf Tearthumb. Phen: Jul-Nov; Aug-Dec. Hab: Marshes, wet thickets. Dist: NS west to MN. south to se. GA, ne. FL (Slaughter 2014; Franck et al. 2016), w. NC, and w. TN.
Origin/Endemic status: Native
Syn: = FNA5, K3, K4, Mi, Mo3, NE, NY, Pa, Tn, Va; = Polygonum arifolium – C, GW2, K1, RAB, W, WV, Horton (1972), Mitchell & Dean (1978), Park (1988); = Tracaulon arifolium – S; > Polygonum arifolium var. arifolium – F, G; > Polygonum arifolium var. pubescens – F, G; > Tracaulon arifolium var. pubescens – Il
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