Vegetation Science Group

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

Vegetation of the Czech Republic

Association LBA04
Stellario nemorum-Alnetum glutinosae Lohmeyer 1957

Stellario nemorum-Alnetum glutinosae

Photo on botanickafotogalerie.cz

Stellario-Alnetum is an association dominated by Alnus glutinosa or Fraxinus excelsior. Its herb layer contains hygrophilous species, but unlike in other types of Alnus-Fraxinus floodplain forests mesophilous species are well represented. It occurs in narrow floodplains along small to medium-sized streams from the colline to montane belt. Soils are sandy or stony. The water table can be as deep as 1 m below the surface. In many places this community has developed on abandoned wet meadows. It is widespread in the Czech Republic, being most common in deep river valleys of the Bohemian Massif and other areas with complex topography.

Orig. (Lohmeyer 1957): Stellario-Alnetum glutinosae [Kästner 1938] (Stellaria nemorum)

Syn.: Alnetum incanae sensu Kästner 1938 non Lüdi 1921 (pseudonym), Alno-Fraxinetum stellarietosum Miky¹ka 1944 (§ 3e), Arunco sylvestris-Alnetum glutinosae Tüxen 1957, Chaerophyllo hirsuti-Alnetum glutinosae Müller et Görs 1958

Diagnostic species: Alnus glutinosa, Fraxinus excelsior; Aegopodium podagraria, Asarum europaeum, Festuca gigantea, Galeobdolon luteum agg., Geum urbanum, Ranunculus lanuginosus, Stachys sylvatica, Stellaria nemorum; Plagiomnium undulatum

Constant species: Acer pseudoplatanus, Alnus glutinosa, Fraxinus excelsior, Sambucus nigra; Aegopodium podagraria, Ajuga reptans, Anemone nemorosa, Asarum europaeum, Athyrium filix-femina, Carex sylvatica, Festuca gigantea, Galeobdolon luteum agg., Geranium robertianum, Geum urbanum, Impatiens noli-tangere, Mercurialis perennis, Oxalis acetosella, Pulmonaria officinalis agg., Senecio nemorensis agg., Stachys sylvatica, Stellaria nemorum, Urtica dioica; Plagiomnium undulatum

Dominant species: Alnus glutinosa, Fraxinus excelsior; Aegopodium podagraria, Anemone nemorosa, Ficaria verna, Impatiens noli-tangere, Mercurialis perennis, Stellaria nemorum, Urtica dioica

Formal definition: (Alnus glutinosa cover > 25 % OR (Fraxinus excelsior cover > 25 % AND Group Cardamine amara)) AND (Group Asarum europaeum OR Group Mercurialis perennis) NOT Group Lysimachia vulgaris NOT Group Prunus padus NOT Cardamine amara (excl. subsp. opicii) cover > 5 % NOT Carex remota cover > 5 % NOT Picea abies cover > 25 %

Source: Douda J. (2013): LBA04 Stellario nemorum-Alnetum glutinosae Lohmeyer 1957. In: Chytrý M. (ed.), Vegetace Èeské republiky. 4. Lesní a køovinná vegetace [Vegetation of the Czech Republic 4. Forest and shrub vegetation]. Academia, Praha, pp. 207-210.