Vegetation Science Group

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

Vegetation of the Czech Republic

Association VDB02
Ranunculo-Juncetum bulbosi Oberdorfer 1957

Ranunculo-Juncetum bulbosi

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This association includes stands of low-growing perennial amphibious herbs, dominated by Juncus bulbosus and Ranunculus flammula. It occurs in the littoral zones of lakes, fishponds, water reservoirs, flooded sand pits, hollows after peat extraction and ditches along forest roads. It is periodically flooded by oligotrophic to mesotrophic, rarely dystrophic water, which can reach depths up to 25 cm. It occurs in the colline to submontane belts of Bohemia and western Moravia.

Orig. (Oberdorfer 1957): Ranunculo-Juncetum .bulbosi) ass. nov. (Ranunculus flammula. R. repens)

Diagnostic species: Juncus bulbosus, Ranunculus flammula, Veronica scutellata

Constant species: Juncus bulbosus, Ranunculus flammula, Veronica scutellata

Dominant species: Agrostis canina. Callitriche palustris s. l., Eleocharis acicularis, Juncus bulbosus, Ranunculus flammula

Formal definition: (Juncus bulbosus cover > 25 % OR Ranunculus flammula cover > 25 %) AND Juncus bulbosus Group NOT Carex rostrata cover > 25 % NOT Carex vesicaria cover > 25 % NOT Eleocharis palustris agg. cover > 25 % NOT Eriophorum angustifolium cover > 5 % NOT Hottonia palustris cover > 25 % NOT Juncus effusus cover > 25 % NOT Juncus filiformis cover > 25 % NOT Littorella uniflora cover > 5 % NOT Utricularia ochroleuca cover > 5 %

Source: Šumberová K. (2011): VDB02 Ranunculo-Juncetum bulbosi Oberdorfer 1957. 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. 286-289.