Vegetation Science Group

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

Vegetation of the Czech Republic

Association RBA01
Valeriano dioicae-Caricetum davallianae (Kuhn 1937) Moravec in Moravec et Rybníčková 1964

Valeriano dioicae-Caricetum davallianae

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This association includes vegetation of calcareous fens, dominated by short sedges and developed on organic fen peat. These fens are usually of modern origin, and they are developed and maintained under regular mowing regimes or light livestock grazing. Species of wet Calthion palustris meadows and acidophytes occur in many stands. Carex davalliana is present on most sites and usually dominates. The moss layer is species-poor and lacks both the Sphagnum species and brown mosses typical of other associations with Carex davalliana, e.g. Palustriella commutata or Scorpidium cossonii. Localities of this association in the Czech Republic are concentrated in the eastern Labe lowland and adjacent foothill areas, and in foothills of the Šumava Mountains.

Orig. (Moravec & Rybníčková 1964): Valeriano dioicae-Caricetum davallianae (Kuhn 1937) Moravec, asoc. nova

Syn.: Caricetum davallianae Klečka 1930 (§ 31, younger homonym: non Caricetum davallianae Dutoit 1924), Caricetum davallianae Subassoziation von Valeriana dioica.Caltha palustris Kuhn 1937, Caricetum davallianae medioeuropaeum Klika 1958 (§ 34a), Caricetum davallianae Kopecký 1960 (§ 31, younger homonym: non Caricetum davallianae Dutoit 1924), Amblystegio stellati-Caricetum dioicae sensu auct. non Osvald 1925 (pseudonym)

Diagnostic species: Carex davalliana, C. flava. C. panicea. C. pulicaris. Dactylorhiza majalis. Eriophorum latifolium. Parnassia palustris. Polygala amarella. Potentilla erecta. Succisa pratensis. Taraxacum sect. Palustria. Valeriana dioica; Calliergonella cuspidata

Constant species: Briza media. Caltha palustris, Carex davalliana, C. nigra, C. panicea, Dactylorhiza majalis. Equisetum palustre. Eriophorum latifolium. Filipendula ulmaria. Molinia caerulea s. l., Potentilla erecta. Prunella vulgaris. Ranunculus acris. Sanguisorba officinalis. Succisa pratensis. Valeriana dioica; Calliergonella cuspidata. Climacium dendroides

Dominant species: Carex davalliana, C. panicea. Molinia caerulea s. l.; Calliergonella cuspidata

Formal definition: Carex davalliana cover > 5 % NOT Group Lychnis flos-cuculi NOT Cirsium rivulare cover > 25 % NOT Sphagnum sp. cover > 0 %

Source: Hájek M. & Hájková P. (2011): RBA01 Valeriano dioicae-Caricetum davallianae (Kuhn 1937) Moravec in Moravec et Rybníčková 1964. 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. 623-626.