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 Atlantic, sub-Atlantic and subcontinental middle Europe, with an understorey rich in tall herbs, in particular, in sub-Atlantic areas, the tall Cirsium oleraceum and Eupatorium cannabinum and usually Carex acutiformis; these constitute a transition towards unit G1.2132