Vegetation Science Group

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

Vegetation of the Czech Republic

Association ADA02
Crepido conyzifoliae-Calamagrostietum villosae (Zlatník 1925) Jeník 1961

Crepido conyzifoliae-Calamagrostietum villosae

Photo on botanickafotogalerie.cz

This association includes natural subalpine vegetation dominated by the tall rhizomatous grass Calamagrostis villosa. Such grasslands are common around and above the timberline, but most of them are rather poor in species. Species-richer stands are mostly found on the upper slopes of glacial cirques, where pronounced snow cover accumulates in winter and protects plants against frost. This vegetation is mainly distributed in the Krkonoąe Mountains and rarely in the Hrubý Jeseník Mountains.

Orig. (Jeník 1961): Crepidi-Calamagrostidetum villosae (Zlatník 25) Jeník (Crepis conyzifolia)

Syn.: Calamagrostietum villosae Zlatník 1925 (§ 36, nomen ambiguum), Deschampsio flexuosae-Calamagrostietum villosae ©marda 1950 (§ 37, nomen dubium), Sileno vulgaris-Calamagrostietum villosae Jeník et al. 1980

Diagnostic species: Salix silesiaca; Anemone narcissiflora, Athyrium distentifolium, Avenella flexuosa, Bistorta major, Calamagrostis villosa, Crepis conyzifolia, Gentiana asclepiadea, Homogyne alpina, Luzula luzuloides, Melampyrum sylvaticum, Potentilla aurea, Ranunculus platanifolius, Rumex arifolius, Silene vulgaris, Solidago virgaurea, Trientalis europaea, Vaccinium myrtillus, Veratrum album subsp. lobelianum

Constant species: Athyrium distentifolium, Avenella flexuosa, Bistorta major, Calamagrostis villosa, Gentiana asclepiadea, Homogyne alpina, Luzula luzuloides, Melampyrum sylvaticum, Potentilla aurea, Rumex arifolius, Senecio nemorensis agg., Silene vulgaris, Solidago virgaurea, Trientalis europaea, Vaccinium myrtillus, Veratrum album subsp. lobelianum

Dominant species: Calamagrostis villosa

Formal definition: Calamagrostis villosa cover > 25 % AND Group Trientalis europaea AND Group Vaccinium myrtillus AND Group Veratrum *lobelianum NOT Salix silesiaca cover > 25 %

Source: Kočí M. (2007): ADA02 Crepido conyzifoliae-Calamagrostietum villosae (Zlatník 1925) Jeník 1961. In: Chytrý M. (ed.), Vegetace České republiky. 1. Travinná a keříčková vegetace [Vegetation of the Czech Republic. 1. Grassland and Heathland Vegetation]. Academia, Praha, pp. 96-99.