Riverside brush of fast, pebbly, summer-high rivers originating in the Alps or other major mountain ranges with similar climate cycle, with Salix spp., Caltha palustris ssp. laeta, Carduus personata, Myricaria germanica and Hippophae rhamnoides. Vegetation of the alliance Salicion eleagno-daphnoidis prevails mostly in narrow valleys with powerful erosion-accumulating activity.