Persicaria lapathifolia (Linnaeus) Delarbre. Section: Persicaria. Common name: Willow-weed, Dockleaf Smartweed, Pale Smartweed. Phenology: Jun-Dec. Habitat: Bottomlands, bottomland fields, disturbed areas. Distribution: Nearly cosmopolitan in current distribution, the original distributions hard to interpret, sometimes regarded as having both native and introduced elements in North America.

Origin/Endemic status: Native

Taxonomy Comments: If two species are recognized, Persicaria lapathifolia is the European, and Persicaria incarnata is native in eastern North America.

Synonymy ⓘ: = Ar, Can, Fl4, FNA5, Il, K4, Mi, Mo3, NE, NY, Pa, S, Tn, Tx, Va, Atha, Nee, & Naczi (2010); = Polygonum lapathifolium L. — C, GW2, NcTx, RAB, Tat, W, WH3, WV, Horton (1972), Mitchell & Dean (1978); > Persicaria incarnata (Elliott) Small — S13; > Persicaria lapathifolia (L.) Delarbre — S13; > Polygonum lapathifolium L. var. lapathifolium — F, G; > Polygonum lapathifolium L. var. nodosum (Raf.) Weinm. — G; > Polygonum lapathifolium L. var. ovatum A.Braun — F; > Polygonum lapathifolium L. var. prostratum Wimm. — F; > Polygonum lapathifolium L. var. salicifolium Sibth. — F; > Polygonum scabrum Moench — F. Basionym: Polygonum lapathifolium L. 1753

Links to other floras: = Persicaria lapathifolia - FNA5

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Wetland Indicator Status:

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

Heliophily ⓘ: 7