Snow grass snowbed communities
Sparse communities of the alpine level of northern boreal and arcto-alpine mountains of Scandinavia and of Iceland dominated by the grass [Phippsia algida], with, notably, [Salix herbacea], [Cerastium arcticum], [Cerastium cerastoides], [Oxyria digyna], [Ranunculus glacialis], [Ranunculus nivalis], [Ranunculus pygmaeus], [Saxifraga cernua], [Saxifraga oppositifolia], [Saxifraga rivularis], [Saxifraga stellaris], [Saxifraga tenuis], [Carex lachenalii], [Juncus biglumis], [Poa alpina f. vivipara], [Deschampsia alpina], [Sagina saginoides], with a fragmentary moss cover and no lichens, located on gravelly, sandy, sometimes totally waterlogged soils, calcareous in Scandinavia, with prolonged snow-cover. Snow grass communities frequently occur as pioneer vegetation on small surfaces, very common in the central part of southern Norway and in Sweden from Jamtland northwards.
Important species scientific name | Corresponding species comments |
---|---|
Sagina saginoides (L.) H.Karst. | Species mentioned in habitat definition as characterising |
Cerastium cerastoides (L.) Britton | Species mentioned in habitat definition as characterising |
Ranunculus pygmaeus Wahlenb. | Species mentioned in habitat definition as characterising |
Ranunculus nivalis L. | Species mentioned in habitat definition as characterising |
Ranunculus glacialis L. | Species mentioned in habitat definition as characterising |
Oxyria digyna (L.) Hill | Species mentioned in habitat definition as characterising |
Saxifraga cernua L. | Species mentioned in habitat definition as characterising |
Saxifraga oppositifolia L. | Species mentioned in habitat definition as characterising |
Saxifraga rivularis L. | Species mentioned in habitat definition as characterising |
Saxifraga tenuis (Wahlenb.) Harry Sm. ex Lindm. | Species mentioned in habitat definition as characterising |
Salix herbacea L. | Species mentioned in habitat definition as characterising |
Juncus biglumis L. | Species mentioned in habitat definition as characterising |
Deschampsia cespitosa ssp. alpina (L.) Tzvelev | Species mentioned in habitat definition as characterising |
Phippsia algida (Sol.) R.Br. | Species mentioned in habitat definition as characterising |
Cerastium nigrescens ssp. arcticum (Lange) P.S.Lusby | Species mentioned in habitat definition as characterising |