Oligotrophic swamp alder forests

Description (English)

Oligotrophic or meso-oligotrophic, acidocline Alnus glutinosa woods of fens and poorly drained banks of brooks or small rivers of western Europe, mostly characteristic of siliceous regions and Atlantic climates, south to Galicia. Betula pubescens and Frangula alnus often accompany the alders. The ground layer is usually rich in Sphagnum spp. and includes Carex laevigata, Equisetum sylvaticum and many ferns, including Oreopteris limbosperma, Blechnum spicant, Athyrium filix-femina, Dryopteris cristata and Dryopteris carthusiana.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code T1-512

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Flowering Plants Alnus glutinosa
Ferns Athyrium filix-femina
Flowering Plants Betula pubescens
Ferns Blechnum spicant
Flowering Plants Carex laevigata
Ferns Dryopteris carthusiana
Ferns Dryopteris cristata
Ferns Equisetum sylvaticum
Flowering Plants Frangula alnus
Ferns Oreopteris limbosperma
Species scientific name English common name Species group
Alnus glutinosa Flowering Plants
Athyrium filix-femina Ferns
Betula pubescens Flowering Plants
Blechnum spicant Ferns
Carex laevigata Flowering Plants
Dryopteris carthusiana Ferns
Dryopteris cristata Ferns
Equisetum sylvaticum Ferns
Frangula alnus Flowering Plants
Oreopteris limbosperma Ferns

Other classifications

Not available For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 2007 (revised descriptions 2012) G1.412 Oligotrophic swamp alder woods same
EUNIS Habitat Classification 200410 G1.412 Oligotrophic swamp alder woods same
EUNIS Habitat Classification 200308 G1.412 Oligotrophic swamp alder woods same
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