Description: Native to Great Britain, but an alien species in Ireland where it is grown as a garden herbaceous perennial. Most Northern Ireland records are of garden escapes or plantings in demesnes, parks or large gardens.

An alternative name is Polygonum bistorta.

All names: Persicaria bistorta (L.) Samp.; Polygonum bistorta L.

Distribution Map from NBN: Persicaria bistorta at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Persicaria bistorta at iNaturalist World Species Observations database.