Persicaria bistorta 'Superba'

Common bistort
larger image
Scientific classification
Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Polygonales Family: Polygonaceae Genus: Persicaria Species: bistorta Cultivar: Superba
Binomial name
Polygonum bistorta

This is a cultivated form of Persicaria bistorta.