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Artemisia longifolia - Calamovilfa longifolia Sparse Vegetation | Western Ecology Working Group of...
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Name: Artemisia longifolia - Calamovilfa longifolia Sparse Vegetation Reference: Western Ecology Working Group of... Description: This sparse plant community is a distinctive minor association occurring as small patches on steep, erosive and barren slopes or colluvium at slope bases in badlands topography of north-central Montana. It may occur in adjacent Canada if appropriate habitat exits. The climate is semi-arid (annual average precipitation 10-14 inches), temperate and verging on continental; two-thirds of the annual precipitation is received in spring and early summer. Parent material is soft, dark and erosive marine shale of the Colorado, Claggett and Bearpaw formations; these shales are quite fissile, weathering to predominantly sand-sized shards and excessively well-drained soils with a very acidic reaction (pH <5.0). The substrate's coarse texture and highly erosive nature precludes the development of soil horizons. Total canopy cover rarely exceeds 20%. Rosa arkansana is the only shrub with high constancy (mean canopy cover 1%); it occurs in a dwarfed form due to the stressful nature of these sites. The subshrubs Eriogonum pauciflorum and Gutierrezia sarothrae are also highly constant. Common and diagnostic grasses include Calamovilfa longifolia and Calamagrostis montanensis; their canopy cover is usually in the range of 1-5%. The most common and diagnostic forb is Artemisia longifolia (4-15% cover) with Thermopsis rhombifolia, Eriogonum pauciflorum, and Stephanomeria runcinata also consistently present.  Accession Code: VB.CC.17814.ARTEMISIALONGIF Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Artemisia longifolia Sparsely Vegetated Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Longleaf Wormwood - Prairie Sandreed Sparse Vegetation   UID: ELEMENT_GLOBAL.2.683377 NatureServe Explorer   Code: CEGL001521   Scientific: Artemisia longifolia - Calamovilfa longifolia Sparse Vegetation   Common: Long-leaved Sage - Indian Ricegrass Sparse Vegetation (convergence) and Synonyms: (undetermined) Artemisia longifolia - Calamovilfa longifolia Sparse Vegetation