Luxuriant tall herb formations of deep, humid soils in the montane to alpine, but mostly sub-alpine, levels of the higher mountains, with Cicerbita alpina, C. plumieri,Cirsium helenioides, C. spinosissimum, C. flavispina, Geranium sylvaticum, Polygonatum verticillatum, Ranunculus platanifolius, Aconitum vulparia, A. napellus, A. nevadense, Adenostyles alliariae, Senecio elodes, Veratrum album, Trollius europaeus, Peucedanum ostruthium, Doronicum austriacum, Pedicularis foliosa, Eryngium alpinum, Centaurea rhapontica, Valeriana pyrenaica, Tozzia alpina. Groupings of these plants can invade the Aceri-Fagion and reappear, along streams, lower down in montane beech forests. If useful, their presence can be noted by combining a code of 37.8 with the appropriate forest code.