Distanskurs i örtterapi.

Photo: Polygonum amphibium 1.

Gallery: 
Botanical name: 
Photo: Polygonum amphibium 1.

Leaves. Perheniemi, Finland. Wild. 1999-07-05.


Polygonum amphibium L.
Engl.: amphibious bistort, longroot smartweed, water knotweed, water persicaria, water smartweed, willow-grass.
Deu.: Wasser-Knöterich.
Suom.: vesitatar.
Sven.: vattenpilört, grodpilört.
Bot. syn.: Persicaria amphibia (L.) Gray