Vegetation Science Group

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

Vegetation of the Czech Republic

Association RBB03
Menyantho trifoliatae-Sphagnetum teretis Warén 1926

Menyantho trifoliatae-Sphagnetum teretis

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This vegetation type is composed of short and tall sedges, including species with boreal distribution range, such as Carex chordorrhiza. C. diandra and C. lasiocarpa, brown mosses and calcium-tolerant peat mosses. Other species of water-saturated habitats, such as Menyanthes trifoliata, are also frequently present. This vegetation type frequently occurs on deep, old sediments and may persist if unmanaged for a long time due to high water level. In unmanaged stands, willows may form a sparse shrub layer. This vegetation contains several endangered species and glacial relicts. It has a boreal distribution which extends south to central Europe. In the Czech Republic it occurs rarely in the Krušné hory Mountains, Český ráj area, southern Bohemia and Bohemian-Moravian Uplands.

Nomen conservandum propositum

Orig. (Warén 1926): Menyanthes trifoliata-Sphagnum teres-Ass.

Syn.: Carici chordorrhizae-Sphagnetum warnstorfii Warén 1926 (§ 25), Sphagno-Caricetum lasiocarpae Steffen 1931 p. p., Sphagno warnstorfii-Caricetum lasiocarpae Steffen 1931 (fantom)

Diagnostic species: Agrostis canina, Carex diandra, C. lasiocarpa. C. limosa. C. rostrata. Drosera rotundifolia. Equisetum fluviatile, Menyanthes trifoliata, Potentilla palustris. Utricularia minor. Valeriana dioica. Viola palustris; Aneura pinguis. Aulacomnium palustre. Bryum pseudotriquetrum. Calliergon giganteum. Calliergonella cuspidata. Campylium stellatum, Hamatocaulis vernicosus, Meesia triquetra. Philonotis fontana. Scorpidium revolvens s. l. (predominantly S. cossonii), Sphagnum contortum, S. obtusum. S. teres. S. warnstorfii. Tomentypnum nitens. Warnstorfia exannulata

Constant species: Agrostis canina. Carex diandra. C. lasiocarpa. C. nigra. C. panicea, C. rostrata, Drosera rotundifolia. Equisetum fluviatile. Eriophorum angustifolium. Galium palustre agg., G. uliginosum. Menyanthes trifoliata. Potentilla erecta, P. palustris, Valeriana dioica. Viola palustris; Aulacomnium palustre. Bryum pseudotriquetrum. Calliergonella cuspidata. Campylium stellatum. Hamatocaulis vernicosus. Sphagnum contortum. S. teres

Dominant species: Carex diandra, C. lasiocarpa, C. limosa, Menyanthes trifoliata; Scorpidium revolvens s. l. (predominantly S. cossonii), Sphagnum contortum, S. recurvum s. l., S. teres

Formal definition: (Carex chordorrhiza cover > 5 % OR Carex diandra cover > 5 % OR Carex lasiocarpa cover > 5 % OR Carex limosa cover > 5 %) AND Sphagnum sp. cover > 0 % AND (Hamatocaulis vernicosus cover > 5 % OR Scorpidium revolvens s. l. cover > 5 % OR Sphagnum contortum cover > 25 % OR Sphagnum warnstorfii cover > 5 % OR Group Eriophorum latifolium OR Group Sphagnum warnstorfii)

Source: Hájek M. & Hájková P. (2011): RBB03 Menyantho trifoliatae-Sphagnetum teretis Warén 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. 657-660.