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Betula nana / Carex lasiocarpa Shrubland | Western Ecology Working Group of...
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Name: Betula nana / Carex lasiocarpa Shrubland Reference: Western Ecology Working Group of... Description: This association is limited to rich and extremely rich fens in far northern Idaho and west-central and northwestern Montana. It is suspected to occur in adjacent Alberta, Canada. It occurs at low to mid-elevations (e.g., as low as 744 m (2440 feet) in northern Idaho) on organic (peat) soils that are saturated all year, except for the highest of hummocks. Stands most often occur in the shrub-carr mosaic adjacent to beaver ponds or lakes where they form the margins of wetter graminoid/bryophyte-dominated fens (e.g., Carex lasiocarpa swards) and floating mats. Betula nana (or possibly hybrids with Betula pumila) dominates the shrub overstory, which averages about 25% cover, and its height ranges from 0.5 to 2.0 m, apparently depending on the degree of substrate aeration. Salix candida is frequently associated with low cover. The graminoid understory is dominated by Carex lasiocarpa, with occasionally abundant Eleocharis tenuis (= Eleocharis elliptica ?), Carex spp., and Eriophorum spp. also present. Menyanthes trifoliata is a common forb. There is frequently a nearly continuous moss layer characterized by Tomentypnum nitens, Bryum pseudotriquetrum, Campylium stellatum, and Limprichtia revolvens. Sphagnum moss tends to be lacking or only present in low amounts and with low species diversity.  Accession Code: VB.CC.28408.BETULANANACAREX Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 28-Sep-2004 to: 17-Nov-2014
	status: accepted Community's Parent: Betula nana Seasonally Flooded Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Swamp Birch / Wiregrass Sedge Shrubland   UID: ELEMENT_GLOBAL.2.741266 NatureServe Explorer   Scientific: Betula nana / Carex lasiocarpa Shrubland   Code: CEGL002700 (convergence) and Synonyms: (undetermined) Betula glandulosa / Carex lasiocarpa Shrubland