Vegetation Science Group

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

Vegetation of the Czech Republic

Association XEA04
Junco effusi-Calamagrostietum villosae Sýkora 1983

Junco effusi-Calamagrostietum villosae

Photo on botanickafotogalerie.cz

This vegetation type is formed of dense stands of Calamagrostis villosa which develop on sites of natural, montane spruce forests or mixed acidophilous spruce-fir-beech forests. In forest clearings and on sites deforested due to air pollution this vegetation may inhibit further succession of trees and form a long-term persisting successional stage. Artificial afforestation on these sites is difficult too. Soils are acidic and litter decomposition processes are slow. This vegetation type is common in the mountain ranges along the Czech borders at altitudes of 700–1100 m. It may occur in frost pockets at low altitudes as well.

Orig. (Sýkora 1983): Junco effusi-Calamagrostietum villosae Sýkora, ass. nova

Syn.: Trientali europaeae-Calamagrostietum villosae Hilbig et Wagner 1990, Calamagrostio villosae-Digitalietum purpureae Preising et Vahle in Preising et al. 1993 p. p.

Diagnostic species: Avenella flexuosa. Calamagrostis villosa, Epilobium angustifolium, Galium saxatile. Rubus idaeus; Oligotrichum hercynicum

Constant species: Avenella flexuosa, Calamagrostis villosa, Dryopteris dilatata, Epilobium angustifolium, Juncus effusus, Rubus idaeus, Senecio nemorensis agg. (predominantly S. hercynicus), Vaccinium myrtillus; Polytrichastrum formosum

Dominant species: Avenella flexuosa, Calamagrostis epigejos, C. villosa, Senecio nemorensis agg. (predominantly S. hercynicus); Polytrichastrum formosum

Formal definition: Calamagrostis villosa cover > 25 % AND Group Epilobium angustifolium NOT Group Leucanthemum vulgare NOT Group Ligusticum mutellina NOT Group Potentilla aurea NOT Group Veratrum lobelianum

Source: Petřík P. & Neuhäuslová Z. (2009): XEA04 Junco effusi-Calamagrostietum villosae Sýkora 1983. In: Chytrý M. (ed.), Vegetace České republiky. 2. Ruderální, plevelová, skalní a su»ová vegetace [Vegetation of the Czech Republic 2. Ruderal, weed, rock and scree vegetation]. Academia, Praha, pp. 395-397.