Vegetation Science Group

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

Vegetation of the Czech Republic

Association VBB01
Potametum natantis Hild 1959

Potametum natantis

Photo on botanickafotogalerie.cz

This species-poor vegetation type is dominated by Potamogeton natans, which forms dense stands of broad leaves floating on the water surface. It occurs mostly in mesotrophic, but also in oligotrophic or eutrophic water bodies with 20–100 cm deep, still or slowly moving water, e.g. in small fishponds, pools in quarries and sand pits, oxbows, alluvial pools, channels, and lentic sections of streams. Potamogeton natans often appears in the early stages of terrestrialization, but it grows slowly and forms extensive stands only in the later successional stages. This association occurs from the lowlands to mountain areas across the Czech Republic.

Orig. (Hild 1959): Potametum natantis

Syn.: Potametum natantis von Soó 1927 (§ 2b, nomen nudum), Polygono-Potametum natantis Soó 1964, Myriophyllo alterniflori-Potametum natantis Rivas-Martínez et al. 2001

Diagnostic species: Potamogeton natans

Constant species: Lemna minor, Potamogeton natans

Dominant species: Potamogeton natans

Formal definition: Potamogeton natans cover > 25 % NOT Callitriche palustris s. l. cover > 25 % NOT Eleocharis palustris agg. cover > 25 % NOT Equisetum fluviatile cover > 25 % NOT Glyceria fluitans cover > 25 % NOT Hippuris vulgaris cover > 25 % NOT Nuphar lutea cover > 25 % NOT Nymphaea candida cover > 25 % NOT Phragmites australis cover > 25 % Potamogeton alpinus cover > 25 % NOT Potamogeton nodosus cover > 25 % NOT Sparganium emersum cover > 25 % NOT Sparganium erectum cover > 25 % NOT Sparganium natans cover > 25 % NOT Stratiotes aloides cover > 25 % NOT Typha latifolia cover > 25 %

Source: Šumberová K. (2011): VBB01 Potametum natantis Hild 1959. 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. 135-138.