Species-rich thermophile pioneer scree communities of natural and anthropogenic station of the Alpine system, the Jura, the middle European Hercynian ranges, in particular, the Hautes Fagnes, and their vicinity, dominated by Vincetoxicum hirundinaria, often with Brachypodium pinnatum, Anthericum ramosum, Knautia dipsacifolia (Knautia sylvatica), Calamagrostis varia, Campanula rapunculoides, Galium album, Origanum vulgare.