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Betula occidentalis / Crataegus douglasii Shrubland | Western Ecology Working Group of...
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Name: Betula occidentalis / Crataegus douglasii Shrubland
Reference: Western Ecology Working Group of...
Description: This is a riparian, bottomland community found on perennial third order streams to small rivers in medium to large U-shaped, valley bottoms. Occurrences occur at relatively low elevations in the valleys and mountains of eastern Oregon, eastern Idaho, and western Idaho. <i>Betula occidentalis</i> forms a low, patchy canopy along the stream, and occasionally spreads out throughout the floodplain with cover ranging from 30-50%. <i>Crataegus douglasii</i> is found throughout the bottomland, creating shrub thickets with overall cover ranging from 20-40%. Other trees and tall shrubs are rare, but can include <i>Salix</i> species (<i>Salix exigua, Salix geyeriana</i>, or <i>Salix lucida ssp. lasiandra), Cornus sericea, Populus tremuloides</i>, or <i>Populus balsamifera ssp. trichocarpa (= Populus trichocarpa)</i>. Low shrubs (<i>Rosa woodsii, Ribes aureum, Toxicodendron radicans</i>), graminoids (<i>Leymus cinereus (= Elymus cinereus), Carex</i> spp., <i>Deschampsia caespitosa, Carex amplifolia, Juncus balticus</i>) dominate the understory, along with some non-native grasses and forbs (<i>Bromus tectorum, Poa pratensis, Verbascum thapsus</i> and <i>Solanum dulcamara</i>). 
Accession Code: VB.CC.33944.CEGL001081
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.2.689456 NatureServe ExplorerNatureServe Explorer logo
  Translated: Water Birch / Black Hawthorn Shrubland
  Code: CEGL001081
  Scientific: Betula occidentalis / Crataegus douglasii Shrubland