Fraxinus excelsior-Alnus glutinosa formations of springs and small streams of Atlantic, sub-Atlantic and subcontinental middle Europe, usually dominated by ashes, with Carex remota, Carex pendula, Carex strigosa, Equisetum telmateia, Rumex sanguineus, Lysimachia nemorum, Cardamine amara, Chrysosplenium oppositifolium, Chrysosplenium alternifolium, Impatiens noli-tangere, Ribes rubrum.
Fraxinus excelsior-Alnus glutinosa woods of calcareous inundated substrates adjacent to streams and springs of Great Britain and middle Europe, characterized by an abundant herb layer dominated by Equisetum telmateia and rich in mosses.