Common Bistort - Persicaria bistorta

    Alt Name
    Bistort and as Snake-root
    Description

    An erect, perennial with attractive pink flowers, in a tight cylindrical inflorescence. The basal leaves have a long petiole, while the stem leaves are sessile. The upper part of the petiole has a narrow wing of leaf tissue. The plant grows from a stout creeping rhizome, which spreads to create dense patches.

    Similar Species

    Persicaria amphibia growing on dry land

    Identification difficulty
    ID guidance

    Unbranched flowerheads, one per stem; stamens exserted (sticking out from flowers).  Leaves truncate/cordate at base, wider than P amphibia, lower ones with winged petioles

    Recording advice

    Photos of flowerhead, leaves and general growth form.

    Habitat

    Often in damp areas and near to lakes margins, also in meadows and woods.  A more vigorous variety (var. superba) is often grown in gardens and may survive near houses, after being thrown out

    When to see it

    May to July.

    Life History

    Perennial

    UK Status

    Found throughout Britain, but commonest in the north west of England.

    VC55 Status

    Not common in Leicestershire + Rutland. In the 1979 Flora survey of Leicestershire it was found in 9 of the 617 tetrads.

    In the current Checklist (Jeeves, 2011) it is listed as Scarce.  It may have been introduced in some locations.

    It is on the VC55 Rare Plant Register 

    Leicestershire & Rutland Map

    UK Map