Alnus glutinosa-Fraxinus excelsior forests of large valleys of lowland slow and even-flowing Central European rivers, south to the Illyrian region, often extensive, and capable of occupying floodplains well beyond the riparian gallery, progressively richer in Quercus robur and Carpinion species towards the exterior. The undergrowth includes, besides Prunus padus, Humulus lupulus, Rubus idaeus, Rubus caesius, Ribes nigrum, Ribes rubrum, Sambucus nigra, Aegopodium podagraria, Peucedanum palustre, Glyceria maxima, Iris pseudacorus, Carex acutiformis, Carex riparia, Phalaris arundinacea, Filipendula ulmaria, Cirsium oleraceum, Cirsium palustre.