Vegetation Science Group

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

Vegetation of the Czech Republic

Association RBC01
Caricetum nigrae Braun 1915

Caricetum nigrae

Photo on botanickafotogalerie.cz

This association represents one of the most common types of fen grasslands on non-calcareous bedrock in central Europe. Both productivity and species richness are rather high in the context of fen habitats, but the representation of both the high pH-specialists and boreal species is very low. The vegetation is usually dominated by common species of short sedges such as Carex demissa. C. echinata. C. nigra and C. panicea, the peat mosses Sphagnum subsecundum and S. teres and common non-sphagnaceous mosses. The peat layer is usually shallow and calcium concentrations are low. The association is widespread in submontane to montane areas of the Czech Republic.

Nomen mutatum propositum

Orig. (Braun 1915): Caricetum Goodenovii (Carex goodenowii = C. nigra)

Syn.: Carici canescentis-Agrostietum caninae Tüxen 1937 caricetosum paniceae Tüxen 1937, Caricetum canescenti-stellulatae Klika et ©marda 1944 p. p., Junco-Caricetum fuscae Tüxen ex Passarge 1964, Willemetio stipitatae-Caricetum paniceae Moravec 1965

Diagnostic species: Agrostis canina. Carex echinata. C. nigra. C. panicea. Eriophorum angustifolium. Nardus stricta. Potentilla erecta. Viola palustris; Aulacomnium palustre

Constant species: Agrostis canina, Anthoxanthum odoratum s. l. (predominantly A. odoratum s. str.), Carex echinata. C. nigra. C. panicea. Cirsium palustre. Eriophorum angustifolium. Festuca rubra agg., Galium uliginosum. Juncus effusus. Luzula campestris agg., Nardus stricta, Potentilla erecta, Viola palustris; Aulacomnium palustre

Dominant species: Carex nigra, C. panicea; Calliergonella cuspidata, Sphagnum palustre

Formal definition: (Carex echinata cover > 5 % OR Carex nigra cover > 25 % OR Carex panicea cover > 5 % OR Group Carex canescens) AND Group Anthoxanthum odoratum AND Group Viola palustris NOT (Group Caltha palustris AND Group Eriophorum latifolium NOT Group Lychnis flos-cuculi) NOT Group Sphagnum warnstorfii NOT Carex davalliana cover > 5 % NOT Carex vaginata cover > 5 % NOT Cirsium rivulare cover > 5 % NOT Eriophorum latifolium cover > 5 % NOT Sphagnum cuspidatum cover > 5 % NOT Sphagnum recurvum s. l. cover > 25 %

Source: Hájek M. & Hájková P. (2011): RBC01 Caricetum nigrae Braun 1915. 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. 662-665.