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Betula occidentalis / Maianthemum stellatum Shrubland | Western Ecology Working Group of...
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Name: Betula occidentalis / Maianthemum stellatum Shrubland Reference: Western Ecology Working Group of... Description: This plant association occurs within the Intermountain West states from Colorado north and west into the Pacific Northwest. It typically forms a tall band of shrubs (1.5-2.5 m; 5-8 feet) lining the channel of first- and second-order streams in the elevational range of 2000-2700 m (6400-8800 feet). At higher elevations, conifer trees on the upslopes intermix with Betula occidentalis at the streambank. At lower elevations along sunny valley bottoms, well-developed, large occurrences occupy relatively flat stream benches and often extend away from the channel edge. Other shrubs that may be present include Alnus incana ssp. tenuifolia (1-40%), Cornus sericea (1-37%), Salix exigua (1-16%), Jamesia americana (5-21%), Amelanchier utahensis (20%), Prunus virginiana (1-17%), and Salix monticola (1-14%). The undergrowth can be a sparse or thick carpet of grasses and forbs. In undisturbed stands, forb species richness can be high, with over 30 species in one stand and may include species such as Maianthemum stellatum (1-40% cover), Heracleum maximum (1-34%), Thalictrum fendleri (1-21%), and Rudbeckia laciniata (1-10%). Graminoid cover is usually low but can include Poa pratensis (1-34%), Equisetum arvense (1-23%), Carex utriculata (1-23%), and others. An abundance of non-native grass species is considered an indication of past or current heavy grazing.  Accession Code: VB.CC.26388.BETULAOCCIDENTA 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: Betula occidentalis Temporarily Flooded Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Water Birch / Starflower False Solomon's-seal Shrubland   UID: ELEMENT_GLOBAL.2.689544 NatureServe Explorer   Code: CEGL001162   Scientific: Betula occidentalis / Maianthemum stellatum Shrubland (convergence) and Synonyms: (undetermined) Betula occidentalis / Maianthemum stellatum Shrubland