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Deschampsia caespitosa Seasonally Flooded Herbaceous Alliance | Western Ecology Working Group of...
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Name: Deschampsia caespitosa Seasonally Flooded Herbaceous Alliance Reference: Western Ecology Working Group of... Description: Plant associations included in this alliance are circumboreal and are common in alpine, wet meadows and wetland margin habitats. Stands are found in moist, low-gradient valley bottoms and along streams throughout the mountainous areas of the western U.S. Typically, communities occur in areas of abundant snowfall where snowmelt saturates soils from late spring through early summer. Communities occur in the alpine tundra in snowmelt basins and around the edges of alpine wetlands. At lower elevations, the communities are typically wetlands, requiring wet or moist soils throughout most of the growing season. Soils are variable. Fine-textured soils retain soil moisture longer in areas of seasonal drought, and coarse substrates allow aeration in areas with perennial high water tables. This vegetation is characterized by a moderately dense to dense herbaceous layer dominated by the perennial bunchgrass Deschampsia caespitosa. Commonly associated graminoid species include Carex nebrascensis, Carex microptera, Carex aquatilis, Juncus balticus, Phleum alpinum, Danthonia intermedia, and Agrostis scabra. Common forbs include Geum rossii, Ligusticum tenuifolium, Polygonum bistortoides, and Caltha leptosepala. Diagnostic of this herbaceous alliance is the dominance or codominance of Deschampsia caespitosa and the presence of surface water for extended periods during the growing season.  Accession Code: VB.CC.17831.DESCHAMPSIACAES Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Deschampsia caespitosa Seasonally Flooded Herbaceous Alliance   Translated: Tufted Hairgrass Seasonally Flooded Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.126078 NatureServe Explorer   Code: A.1408