Temperate high-mountain siliceous scree

Description (English)

Siliceous, mostly acidic screes, moraines or stone rivers found at high altitudes and cool sites in mountain ranges through the nemoral zone of Europe. The screes are colonized by a range of mostly perennial, mostly acidophilous plants. Their composition is strongly influenced by altitude and regional climate. There are many relict and local endemic species, though less than on calcareous screes. Often the vegetation cover is sparse, but these screes can be more humid because of the impervious and water-retentive character of the substrates and long snow-lie encourage luxuriant growth and accumulation of humus.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code U22
Relation to Resolution 4 habitat type (used for designation of Emerald sites)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Indicator species

Diagnostic species
Constant species
Dominant species
Flowering Plants Saxifraga bryoides
Flowering Plants Poa laxa
Flowering Plants Ranunculus glacialis
Flowering Plants Oxyria digyna
Flowering Plants Leucanthemopsis alpina
Flowering Plants Cardamine resedifolia
Flowering Plants Androsace alpina
Flowering Plants Murbeckiella pinnatifida
Flowering Plants Geum reptans
Flowering Plants Saxifraga seguieri
Flowering Plants Sedum alpestre
Flowering Plants Saxifraga sibirica
Flowering Plants Cerastium uniflorum

Diagnostic species occur concentrated in the habitat in question, but are absent or rare in other habitats. They are good positive indicators of the habitat, but they do not need to occur in every location of the habitat.

Species scientific name English common name Species group
Saxifraga bryoides Flowering Plants
Poa laxa Flowering Plants
Ranunculus glacialis Flowering Plants
Oxyria digyna Flowering Plants
Leucanthemopsis alpina Flowering Plants
Cardamine resedifolia Flowering Plants
Androsace alpina Flowering Plants
Murbeckiella pinnatifida Flowering Plants
Geum reptans Flowering Plants
Saxifraga seguieri Flowering Plants
Sedum alpestre Flowering Plants
Saxifraga sibirica Flowering Plants
Cerastium uniflorum Flowering Plants
Flowering Plants Oxyria digyna
Flowering Plants Saxifraga bryoides
Flowering Plants Poa alpina
Flowering Plants Ranunculus glacialis
Flowering Plants Leucanthemopsis alpina
Flowering Plants Poa laxa
Flowering Plants Cardamine resedifolia
Flowering Plants Sedum alpestre
Flowering Plants Linaria alpina
Flowering Plants Silene acaulis
Flowering Plants Luzula alpinopilosa
Ferns Cryptogramma crispa

Constant species occur frequently in the habitat, but they may include generalist species that are also frequent in other habitats.

Species scientific name English common name Species group
Oxyria digyna Flowering Plants
Saxifraga bryoides Flowering Plants
Poa alpina Flowering Plants
Ranunculus glacialis Flowering Plants
Leucanthemopsis alpina Flowering Plants
Poa laxa Flowering Plants
Cardamine resedifolia Flowering Plants
Sedum alpestre Flowering Plants
Linaria alpina Flowering Plants
Silene acaulis Flowering Plants
Luzula alpinopilosa Flowering Plants
Cryptogramma crispa Ferns

Dominant species are those that often reach high cover in the habitat, thus determining the habitat physiognomy.

Species scientific name English common name Species group

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) H2.3 Temperate-montane acid siliceous screes same
European Red List of Habitats H2.3 Temperate high-mountain siliceous scree same
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 H2.3 Temperate-montane acid siliceous screes same
EUNIS Habitat Classification 200308 H2.3 Temperate-montane acid siliceous screes same
EUNIS Habitat Classification 200202 H2.3 Temperate-montane acid siliceous screes same
EUNIS Habitat Classification 199910 H2.3 Temperate-montane acid siliceous screes same
EUNIS Habitat Classification 199811 H2.3 Temperate-montane acid siliceous screes same
EUNIS Habitat Classification 199712 H2.3 Temperate-montane acid siliceous screes same
Palaearctic Habitat Classification 199905 61.1 Alpine and northern siliceous screes same
Palaearctic Habitat Classification 1997 61.1 Alpine and northern siliceous screes same
Palaearctic Habitat Classification 1996 61.1   same
Palaearctic Habitat Classification 1993 61.1   same
CORINE Biotopes Classification 1991 61.1   same
CORINE Biotopes Classification 1989 61.1   same
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