RB4742's picture

Common Bistort

Observed: 7th July 2011 By: RB4742
S159 Neighbourhood Nature - current student
RB4742’s reputation in PlantsRB4742’s reputation in Plants
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This is an interesting plant as it is only one of two that I found on the stretch of canal walkway that I found recently. Looks very much like a garden plant I have (see the second photo - from my back garden - perhaps from the same family?)

Species interactions

No interactions present.

Species with which Amphibious Bistort (Persicaria amphibia) interacts


Kevbert's picture


Definitely a Persicaria (member of the Dock family). Can't see a dark patch on each of the leaves so not a Redshank.
Does each flower have 5 petals and eight protruding stamens ? If so then you are correct. The roots have been used in Russia and Iceland as a source of flour and in the UK as a red dye for tanning.

Tiggrx's picture

your garden plant is Red

your garden plant is Red Bistort (Persicaria amplexicaulis) and the wild plant is Amphibious Bistort (P. amphibia). This is the terrestrial form, the floating form is more often illustrated in the books.

cicuta58's picture


I agree with Tiggrx's comments.