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

stdcommconcept2670026700

View Community Concepts - Detail

Quercus garryana / Viburnum ellipticum - Toxicodendron diversilobum Woodland | Western Ecology Working Group of...
click to update datacart
Name: Quercus garryana / Viburnum ellipticum - Toxicodendron diversilobum Woodland Reference: Western Ecology Working Group of... Description: This forest association occurs only at low elevations in a small area of southwestern Washington and adjacent Oregon, including the southern Puget Lowland and the northernmost Willamette Valley. Stands are primarily associated with basalt bedrock or talus on shallow, stony, or bouldery soils. These are dry sites that tend to be on southern or western aspect slopes. Periodic pre-European settlement fires probably helped maintain the dominance of oak over conifers on many sites. This deciduous broad-leaved forest or woodland is dominated by Quercus garryana and frequently has significant amounts of the evergreen conifer Pseudotsuga menziesii in the canopy or subcanopy (mean 11% cover when present). The species-rich understory is dominated by multiple layers of deciduous broad-leaved shrubs and woody vines, the shortest being <0.5 m tall and the tallest typically about 3 m tall. The typical codominant shrubs are Viburnum ellipticum, Toxicodendron diversilobum (a woody vine), Symphoricarpos albus, and Holodiscus discolor, with somewhat less Amelanchier alnifolia and Oemleria cerasiformis, and Mahonia aquifolium, Rubus ursinus, and Rosa gymnocarpa usually present in small amounts. Herbaceous species usually present include the grass Melica subulata, the forbs Galium aparine, Lathyrus nevadensis, Moehringia macrophylla, Fragaria vesca, Clinopodium douglasii (= Satureja douglasii), Claytonia perfoliata, Nemophila parviflora, and the ferns Polystichum munitum, Polypodium glycyrrhiza, and Dryopteris arguta. This association is distinguished from similar ones by >10% combined cover of Viburnum ellipticum and Toxicodendron diversilobum, and each being present; along with <25% cover of Pseudotsuga menziesii.  Accession Code: VB.CC.26700.QUERCUSGARRYANA Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 01-Feb-2001 to: 17-Nov-2014
	status: accepted Community's Parent: Quercus garryana Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Oregon White Oak / Western Blackhaw - Pacific Poison-oak Woodland   UID: ELEMENT_GLOBAL.2.689592 NatureServe Explorer   Scientific: Quercus garryana / Viburnum ellipticum - Toxicodendron diversilobum Woodland   Code: CEGL003354 (convergence) and Synonyms: (undetermined) Quercus garryana / Viburnum ellipticum - Toxicodendron diversilobum Woodland