Login | Datasets | Logout
Jump to... Home PLOT search PLANT search COMMUNITY search Simple search Manage datasets Tutorial About FAQ ------- Site map VegBranch Data dictionary ERD

stdcommconcept3294332943

View Community Concepts - Detail

Pseudotsuga menziesii / Aspidotis densa Woodland | Western Ecology Working Group of...
click to update datacart
Name: Pseudotsuga menziesii / Aspidotis densa Woodland Reference: Western Ecology Working Group of... Description: This open woodland association has been described from the eastern side of the Cascades Range, a mountainous region in the rain shadow of the Cascade crest. Stands occur on very steep, southerly slopes below 760 m elevation. Sites are outcrops of serpentine. Soil parent material is colluvium derived from serpentine, mixed with either basalt or granite. The mixed colluvium probably partially explains the presence and dominance of <i>Pseudotsuga menziesii</i>. Soils are very stony and gravelly, and probably unstable due to the steep slopes. The upper vegetation canopy is often patchy and is dominated by the needle-leaved, evergreen tree <i>Pseudotsuga menziesii</i>, with a few individuals of <i>Pinus ponderosa</i>. <i>Pseudotsuga menziesii</i> is the only tree species regenerating in the understory. Several broad-leaved, low shrubs common to low-elevation forests are present (with low cover), including <i>Spiraea betulifolia, Mahonia aquifolium</i>, and <i>Prunus emarginata</i>. The moderately dense herbaceous layer is dominated by the perennial bunchgrass <i>Pseudoroegneria spicata</i> (averaging 20% cover), with the forbs <i>Balsamorhiza sagittata</i> and <i>Achillea millefolium</i> contributing another 10%. Several other herbaceous species occur with patchy distribution within stands, occasionally having as much as 15% cover. The fern <i>Aspidotis densa</i> is endemic to serpentine soils and usually present in stands of this association, and as such, is a reliable indicator species, although its cover is low.  Accession Code: VB.CC.32943.CEGL000896 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.685358 NatureServe Explorer   Translated: Douglas-fir / Indian's Dream Woodland   Scientific: Pseudotsuga menziesii / Aspidotis densa Woodland   Code: CEGL000896