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Ledum glandulosum / Sanguisorba officinalis / Sphagnum spp. Shrubland | Western Ecology Working Group of...
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Name: Ledum glandulosum / Sanguisorba officinalis / Sphagnum spp. Shrubland Reference: Western Ecology Working Group of... Description: This early-seral association occurs in open mire complexes in poorly drained basins and valleys. It is known in Oregon only from coastal Curry County, and presumably extends into northern California, but likely habitat diminishes farther south of Del Norte County. Circular or elliptical hummocks 1-3 feet taller than the surrounding mire surface form islands of ombrotrophic vegetation in otherwise minerotrophic mire fed by springs and runoff. Mature trees are absent. The shrub layer is dominated by Ledum glandulosum with 3-75% cover. Gaultheria shallon is a frequent associate, but Vaccinium uliginosum is scarce. Sphagnum palustre with up to 99% cover fills openings among the Ledum stems. The herb layer is extremely diverse and includes 21 species. Sanguisorba officinalis is the dominant herb, with up to 60% cover. Carex echinata ssp. phyllomanica, Blechnum spicant, and Agrostis exarata are characteristic of this association. A diversity of herbaceous species present are unusual for wetland associations. Sisyrinchium californicum is otherwise known mostly from deflation plains among coastal sand dunes. Veratrum californicum is more common in montane meadows than coastal peatlands. Carex buxbaumii is otherwise known in Oregon only from middle to upper elevations in the Cascade Range. Helenium bolanderi, Rhynchospora capitellata, Senecio triangularis (= var. angustifolius), and Lilium occidentale are all at the northern end of their range. Hollows between hummocks are generally wet, species-poor, and consist almost entirely of lawns of Sphagnum angustifolium, Sphagnum pacificum, or bare muddy bottoms if trailed by elk and deer.  Accession Code: VB.CC.23038.LEDUMGLANDULOSU Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 21-Oct-2002 to: 17-Nov-2014
	status: accepted Community's Parent: Ledum glandulosum Saturated Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Glandular Labrador-tea / Great Burnet / Peatmoss species Shrubland   UID: ELEMENT_GLOBAL.2.686908 NatureServe Explorer   Code: CEGL003436   Scientific: Ledum glandulosum / Sanguisorba officinalis / Sphagnum spp. Shrubland (convergence) and Synonyms: (undetermined) Ledum glandulosum / Sanguisorba officinalis / Sphagnum spp. Shrubland