Polygonum pensylvanicum Linnaeus, Species Plantarum 1: 362. 1753.

"Habitat in Pensylvania. Kalm." RCN: 2863.

Lectotype (designated here by Reveal): Kalm, Herb. Linn. No. 510.20 (LINN) .

Current name: Persicaria pensylvanica (L.) M. Gómez ( Polygonaceae).