Vegetation Science Group

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

Vegetation of the Czech Republic

Association THD02
Erysimo crepidifolii-Festucetum valesiacae Klika 1933

Erysimo crepidifolii-Festucetum valesiacae

Photo on botanickafotogalerie.cz

This dry grassland type is dominated by the short narrow-leaved tussock-forming grass Festuca valesiaca. It contains several species typical of dry areas of northern and central Bohemia which are absent in Moravia, e.g. Anthericum liliago, Erysimum crepidifolium and Lactuca perennis. It mostly develops on steep, south-facing slopes with shallow soil and near outcrops of limestone, calcareous shale, basalt or other base-rich rocks. On upper parts of large slopes, this type of steppe vegetation may have existed continuously since the Late Glacial, maintained by combination of factors such as local dry climate and grazing. At some other sites, these grasslands are secondary, occupying potential habitats of thermophilous oak forests. This association occurs in dry areas of northern and central Bohemia.

Nomen inversum propositum

Orig. (Klika 1933): Festuca vallesiaca-Erysimum crepidifolium-Assoziation Klika 1932

Syn.: Poo bulbosae-Erysimetum crepidifolii Toman 1981, Sedo acris-Thymetum pannonici Toman (1976) 1981, Pulsatillo pratensis-Festucetum valesiacae Kolbek 1998 thymetosum praecocis Kolbek 1998

Diagnostic species: Achillea pannonica, Acinos arvensis, Allium strictum, Alyssum montanum, Anthericum liliago, Arenaria serpyllifolia agg., Artemisia campestris, Carex humilis, Centaurea stoebe, Echium vulgare, Erysimum crepidifolium, Festuca valesiaca, Hieracium echioides, Koeleria macrantha, Lactuca perennis, Melica transsilvanica, Myosotis stricta, Oxytropis pilosa, Potentilla arenaria, Pulsatilla pratensis subsp. bohemica, Sedum album, Seseli hippomarathrum, Seseli osseum, Silene otites s. l. (S. otites s. str.), Stachys recta, Stipa capillata, Stipa pulcherrima, Thymus pannonicus, Valerianella carinata, Verbascum lychnitis; Cladonia foliacea

Constant species: Acinos arvensis, Anthericum liliago, Arenaria serpyllifolia agg., Artemisia campestris, Asperula cynanchica, Carex humilis, Centaurea stoebe, Dianthus carthusianorum s. l. (D. carthusianorum s. str.), Echium vulgare, Erysimum crepidifolium, Euphorbia cyparissias, Festuca valesiaca, Koeleria macrantha, Melica transsilvanica, Potentilla arenaria, Pulsatilla pratensis subsp. bohemica, Sedum album, Seseli hippomarathrum, S. osseum, Silene otites s. l. (S. otites s. str.), Stachys recta, Stipa capillata, Verbascum lychnitis

Dominant species: Festuca valesiaca, Koeleria macrantha, Potentilla arenaria

Formal definition: Festuca valesiaca cover > 5 % AND Group Lactuca perennis AND (Group Potentilla arenaria OR Group Stipa capillata)

Source: Chytrý M. (2007): THD02 Erysimo crepidifolii-Festucetum valesiacae Klika 1933. 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. 413-415.