Forest substitution heaths, treeline fringe formations and alpine heaths or mats of calcareous soils in the Alps and the Dinarides, with Rhododendron hirsutum, Rhododendron intermedium, Rhodothamnus chamaecistus and Erica herbacea, often accompanied by Clematis alpina, Daphne striata, Daphne mezereum, Globularia cordifolia, Arctostaphylos uva-ursi. Rhododendron hirsutum and, mostly in the Austrian Alps, Erica herbacea are the most frequent dominants; other shrubs can locally play that role. Arctostaphylos spp. -dominated facies have, however, been been included in unit F2.27.