Polygonum coccineum

Water Smartweed
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Core eudicots
Order:	Caryophyllales
Family:	Polygonaceae
Genus:	Polygonum
Species:	P. coccineum
Binomial name
Polygonum coccineum Muhl. ex Willd.

Polygonum coccineum, commonly called water smartweed, is a perennial herb in the genus Polygonum.