Mediterranean multi-layered alluvial forests with Populus alba, Fraxinus angustifolia, Ulmus minor, Salix alba, Salix spp., Alnus spp., lianas and often species of the Quercetalia ilicis. Populus alba, usually dominant in height, may be absent or sparse in some associations which are then dominated by Fraxinus angustifolia, Ulmus minor and/or Salix spp.
Ostrya carpinifolia-dominated alluvial galleries of the Var, in southeastern france, with Ulmus minor, Populus alba, Salix elaeagnos, Alnus glutinosa, Fraxinus ornus, Acer campestre, A. opalus, Quercus pubescens, Cornus sanguinea, Ligustrum vulgare, Laurus nobilis, Tamus communis, Hedera helix, Viola reichenbachiana, Euphorbia dulcis, Brachypodium sylvaticum, Melica uniflora, Carex pendula, C. digitata and the rare Carex grioletii.