Polygonum amphibium

Polygonum amphibium

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

Photo: Polygonum amphibium 3.

Gallery: 
Polygonum
Botanical name: 
Polygonum amphibium
Photo: Polygonum amphibium 3.

Leaf on water. Tapanila, Helsinki, Finland. Wild. 2012-06-13.

Image ID: 
D12 6194

Photo: Polygonum amphibium 2.

Gallery: 
Polygonum
Botanical name: 
Polygonum amphibium
Photo: Polygonum amphibium 2.

Leaf on water. Tapanila, Helsinki, Finland. Wild. 2012-06-13.

Image ID: 
D12 6191

Photo: Polygonum amphibium 0.

Gallery: 
Polygonum
Botanical name: 
Polygonum amphibium
Photo: Polygonum amphibium.

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

Photo: Polygonum amphibium 1.

Gallery: 
Polygonum
Botanical name: 
Polygonum amphibium
Photo: Polygonum amphibium 1.

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