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Danthonia parryi Herbaceous Alliance | Western Ecology Working Group of...
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Name: Danthonia parryi Herbaceous Alliance
Reference: Western Ecology Working Group of...
Description: These grasslands are found in small but re-occurring montane parks in the Pinus ponderosa forests of the northern Front Range of Colorado and in Wyoming. Elevations range from 2450-3000 m. Sites are moderately sloping (10-20%), with southern and western aspects. Soils are shallow to moderately deep (>60 cm) usually with less than 20% coarse fragments. Soil texture is sandy loam and pH 6.4-6.6. Parent material is alluvium and colluvium derived from gneiss and schist. These dry grasslands form a mosaic with the Pinus ponderosa forest. They have a moderately dense (60-70% cover) herbaceous layer that is dominated by the perennial bunchgrass Danthonia parryi. Other frequent graminoids are Carex inops ssp. heliophila, Muhlenbergia montana, Festuca arizonica, Koeleria macrantha, Poa secunda, and Poa fendleriana. Forbs are diverse but contribute little cover (usually less than 10%) and include Antennaria rosea, Eriogonum umbellatum, Gaillardia aristata, Gentiana spp., Mertensia lanceolata, Penstemon spp., and Potentilla hippiana. The dwarf-shrub Artemisia frigida is often scattered through these stands. At higher elevations these grasslands occur in an ecotone with Pinus contorta forests, and at lower elevations mountain shrub and other dry grassland communities are common neighbors. 
Accession Code: VB.CC.27373.DANTHONIAPARRYI
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: Danthonia parryi Herbaceous Alliance
  Translated: Parry's Oatgrass Herbaceous Alliance
  UID: HIGHER_CLASS_UNIT.2.126084 NatureServe ExplorerNatureServe Explorer logo
  Code: A.1316