Flora of the Southeastern United States
2022 Edition

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POLYGONACEAE

Persicaria lapathifolia (Linnaeus) S.F. Gray. Willow-weed, Dockleaf Smartweed, Pale Smartweed. Phen: Jun-Dec. Hab: Bottomlands, bottomland fields, disturbed areas. Dist: 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

Syn: = Ar, Fl4, FNA5, Il, K3, K4, Mi, Mo3, NE, NY, Pa, S, Tn, Tx, Va, Atha, Nee, & Naczi (2010); = Polygonum lapathifolium – C, GW2, K1, NcTx, RAB, W, WH3, WV, Horton (1972), Mitchell & Dean (1978); > Polygonum lapathifolium var. lapathifolium – G; > Polygonum lapathifolium var. nodosum – G

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image of plant© Gary P. Fleming
image of plant© Gary P. Fleming