Vegetation Science Group

Department of Botany and Zoology | Faculty of Science | Masaryk University

Vegetation of the Czech Republic

Association VBB03
Scirpo fluitantis-Potametum polygonifolii Allorge 1921

Scirpo fluitantis-Potametum polygonifolii

Photo on

This vegetation forms small stands dominated by Potamogeton polygonifolius, which possesses both natant and submerged leaves. In mires, this species can occur in a terrestrial growth form without submerged leaves. It occurs in oligotrophic to mesotrophic, usually 5–20 cm deep water of submontane brooks and fishpond margins with peat accumulation. This association has an oceanic distribution range in Europe, and in the Czech Republic it occurs only at a few sites in the westernmost part of the country.

Orig. (Allorge 1921): Association à Scirpus fluitans et Potamogeton polygonifolius

Syn.: Potametum polygonifolii Segal 1965

Diagnostic species: Juncus bulbosus, Potamogeton polygonifolius

Constant species: Potamogeton polygonifolius

Dominant species: Potamogeton polygonifolius

Formal definition: Potamogeton polygonifolius cover > 25 % NOT Carex vesicaria cover > 25 % NOT Equisetum fluviatile cover > 25 % NOT Juncus bulbosus cover > 25 %

Source: Šumberová K. (2011): VBB03 Scirpo fluitantis-Potametum polygonifolii Allorge 1921. In: Chytrý M. (ed.), Vegetace České republiky. 3. Vodní a mokřadní vegetace [Vegetation of the Czech Republic 3. Aquatic and wetland vegetation]. Academia, Praha, pp. 142-144.