Vegetation Science Group

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

Vegetation of the Czech Republic

Association VBC01
Ranunculetum fluitantis Imchenetzky 1926

Ranunculetum fluitantis

Photo on botanickafotogalerie.cz

This species-poor vegetation type is dominated by Batrachium fluitans, or less frequently by B. penicillatum. Both species form tussocks of long stems with submerged leaves in running water. Some other species of running water may also occur, such as the aquatic moss Fontinalis antipyretica. They occur in the upper and middle reaches of streams, including some artificial channels, with fast-running, cool, clear and nutrient-poor water 10–60(–100) cm deep. The habitats are well insolated and have stony or gravelly bottoms. This vegetation type has scattered occurrences especially at the middle altitudes of the Bohemian Massif.

Orig. (Imchenetzky 1926): Association à Ranunculus fluitans .Ranunculus fluitans = Batrachium fluitans)

Syn.: Ranunculetum fluitantis Allorge 1921 (§ 2b, nomen nudum), Sparganio emersi-Ranunculetum fluitantis Jouanne 1927

Diagnostic species: Batrachium fluitans, B. penicillatum, Fontinalis antipyretica. Rhynchostegium riparioides

Constant species: Batrachium fluitans

Dominant species: Batrachium fluitans, B. penicillatum

Formal definition: Batrachium fluitans cover > 25 % OR Batrachium penicillatum cover > 25 %

Source: Šumberová K. (2011): VBC01 Ranunculetum fluitantis Imchenetzky 1926. 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. 211-215.