Vegetation Science Group

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

Vegetation of the Czech Republic

Association RBA03
Valeriano simplicifoliae-Caricetum flavae Paw³owski et al. 1960

Valeriano simplicifoliae-Caricetum flavae

Photo on botanickafotogalerie.cz

This association is vicarious to the Valeriano dioicae-Caricetum davallianae in the mountainous regions of the Western Carpathians, which are colder and less calcium-rich than the areas of distribution of the Carici flavae-Cratoneuretum filicini. The substrate is mostly shallow organic peat overlying a gley layer. The association occurs throughout the flysch zone of the Slovak, Polish and Ukrainian Carpathians. In the Czech Republic it occurs only fragmentarily. As in the Carici flavae-Cratoneuretum filicini association, Eriophorum latifolium frequently dominates. Scorpidium cossonii, a frequent dominant of the moss layer of this association in the Western Carpathians, occurs at only a few sites in the Czech Republic.

Orig. (Paw³owski et al. 1960): Valeriano-Caricetum flavae = asocjacja (zespó³) Valeriana simplicifolia-Carex flava Paw³. 1949 (nazwa), 1956 (króciutka charakterystyka); Korna¶ 1955 i 1957 (nazwa)

Syn.: Valeriano simplicifoliae-Caricetum davallianae Moravec 1966

Diagnostic species: Alchemilla vulgaris s. l., Blysmus compressus. Briza media. Caltha palustris. Carex echinata. C. flava. C. nigra. C. panicea, Cirsium rivulare, Crepis paludosa, Cruciata glabra, Dactylorhiza majalis, Epipactis palustris, Equisetum palustre. Eriophorum angustifolium, E. latifolium, Hypericum tetrapterum. Potentilla erecta. Prunella vulgaris. Triglochin palustris, Valeriana simplicifolia; Aneura pinguis. Bryum pseudotriquetrum. Calliergonella cuspidata, Campylium stellatum, Climacium dendroides. Dicranum bonjeanii. Fissidens adianthoides. Palustriella commutata. Plagiomnium affine s. l., Scleropodium purum. Thuidium philibertii

Constant species: Alchemilla vulgaris s. l., Anthoxanthum odoratum s. l. (A. odoratum s. str.), Briza media, Caltha palustris, Carex echinata. C. flava, C. nigra, C. panicea, Cirsium rivulare, Crepis paludosa, Cruciata glabra, Dactylorhiza majalis. Epipactis palustris. Equisetum palustre. Eriophorum angustifolium, E. latifolium, Festuca rubra agg., Holcus lanatus. Juncus articulatus. Lathyrus pratensis. Leucanthemum vulgare agg., Lychnis flos-cuculi. Myosotis palustris agg., Potentilla erecta, Prunella vulgaris. Ranunculus acris. R. repens. Scirpus sylvaticus. Valeriana simplicifolia. Vicia cracca; Aulacomnium palustre. Bryum pseudotriquetrum, Calliergonella cuspidata, Campylium stellatum, Climacium dendroides, Fissidens adianthoides, Plagiomnium affine s. l., Rhytidiadelphus squarrosus

Dominant species: Caltha palustris. Carex flacca, C. nigra, C. panicea, Equisetum palustre, Eriophorum latifolium; Aulacomnium palustre. Bryum pseudotriquetrum, Calliergonella cuspidata, Campylium stellatum. Palustriella decipiens, Plagiomnium affine s. l., Scorpidium revolvens s. l. (S. cossonii)

Formal definition: (Group Cirsium rivulare AND Group Eriophorum latifolium) NOT Group Juncus inflexus NOT Group Lychnis flos-cuculi NOT Group Succisa pratensis NOT Cirsium rivulare cover > 5 % NOT Juncus inflexus cover > 25 % NOT Palustriella commutata cover > 25 % NOT Sphagnum sp. cover > 0 %

Source: Hájek M. & Hájková P. (2011): RBA03 Valeriano simplicifoliae-Caricetum flavae Paw³owski et al. 1960. In: Chytrý M. (ed.), Vegetace Èeské republiky. 3. Vodní a mokøadní vegetace [Vegetation of the Czech Republic 3. Aquatic and wetland vegetation]. Academia, Praha, pp. 630-633.