Persicaria virginiana (Linnaeus) Gaertner. Section: Tovara. Jumpseed, Virginia Knotweed. Phen: Jun-Oct. Hab: Floodplains, other moist forests. Dist: NH, QC, MN, and NE, south to n. peninsular FL and TX; disjunct in c. Mexico (PUE, VER).

Origin/Endemic status: Native

Taxonomy Comments: Section Tovara consists of 3-5 species of e. North America and e. Asia (Mun & Park 1995); if the section is recognized as a genus (as it often has been), the correct name for this species is Antenoron virginianum. Variation in North America, previously sometimes recognized as varieties (see synonymy) is under study by M. Pyne.

Synonymy ⓘ: = Ar, Fl4, FNA5, Mex, Mi, NE, NY, Pa, Tn, Va; = Antenoron virginianum (L.) Roberty & Vautier – Il, K4, Horton (1972); = Polygonum virginianum L. – C, GrPl, GW2, K1, NcTx, Tx, W, WH3, Mitchell & Dean (1978); = Tovara virginiana (L.) Raf. – RAB, S, S13, Tat, WV; < Persicaria virginiana (L.) Gaertn. – K3; > Polygonum virginianum L. var. glaberrimum (Fernald) Steyerm. – G; > Polygonum virginianum L. var. virginianum – G; > Tovara virginiana (L.) Raf. var. glaberrima Fernald – F; > Tovara virginiana (L.) Raf. var. virginiana – F

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Wetland Indicator Status:

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

Heliophily ⓘ: 4