Vegetation Science Group

Department of Botany and Zoology | Faculty of Science | Masaryk University

Vegetation of the Czech Republic

Alliance LAA
Alnion glutinosae Malcuit 1929

This alliance includes vegetation of Alnus glutinosa-dominated forested swamps (carrs), with a herb layer composed of tall sedges and wetland herbs. It develops in shallow waterlogged depressions, in the Czech Republic mainly near fishponds and in broad river floodplains. The Alnus stands are usually even-aged, in most cases developed through overgrowing of open wetlands or fens by Alnus.

Orig. (Malcuit 1929): Alnion glutinosae

Diagnostic species: Alnus glutinosa, Betula pubescens, Frangula alnus, Salix cinerea; Calamagrostis canescens, Caltha palustris, Cardamine amara (excl. subsp. opicii), Carex acutiformis, C. elongata, C. paniculata, Dryopteris carthusiana, Galium palustre agg., Iris pseudacorus, Lycopus europaeus, Lysimachia thyrsiflora, L. vulgaris, Peucedanum palustre, Scirpus sylvaticus, Scutellaria galericulata, Solanum dulcamara, Thelypteris palustris, Viola palustris; Sphagnum fimbriatum

Constant species: Alnus glutinosa, Frangula alnus; Caltha palustris, Carex elongata, Deschampsia cespitosa, Dryopteris carthusiana, Filipendula ulmaria, Galium palustre agg., Lycopus europaeus, Lysimachia vulgaris, Myosotis palustris agg., Peucedanum palustre, Scirpus sylvaticus, Scutellaria galericulata, Solanum dulcamara, Urtica dioica, Viola palustris

Source: Douda J. (2013): LAA Alnion glutinosae Malcuit 1929. In: Chytrý M. (ed.), Vegetace České republiky. 4. Lesní a křovinná vegetace [Vegetation of the Czech Republic 4. Forest and shrub vegetation]. Academia, Praha, pp. 167-169.