Login | Datasets | Logout
 

View Community Concepts - Detail

A.1661 | EcoArt 2002
  click to update datacart
Name: A.1661
Reference: EcoArt 2002
Description: This alliance occurs in subalpine meadows in the mountains of western Wyoming. Elevations range from 1970-2720 m, and sites are moist, often concave, lower slopes and benches that temporarily flood or are saturated from snowmelt and remain moist most of the growing season. Slopes are generally moderately steep, up to 40%. Substrate is clay loam or clay soils with relatively high organic matter and therefore good water-holding capacity. Parent material may include sandstone, limestone, shale and quartzite. Stands have a dense (nearly 100% cover) herbaceous layer that is dominated by perennial forbs, typically ~Heracleum maximum$, but codominants include ~Rudbeckia occidentalis$ and ~Thalictrum fendleri$. Other frequent forb associates include ~Delphinium X occidentale, Geranium viscosissimum, Agastache urticifolia, Symphyotrichum foliaceum (= Aster foliaceus)$, and ~Lupinus argenteus$. Graminoids are sparse. The most common are ~Elymus trachycaulus, Bromus carinatus, Melica spectabilis$, and ~Elymus glaucus$. 
Accession Code: VB.CC.1416.A1661
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: V.B.2.N.d
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: HERACLEUM MAXIMUM TEMPORARILY FLOODED HERBACEOUS ALLIANCE
  Code: A.1661
  Common: Cow-parsnip Temporarily Flooded Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Heracleum maximum Temporarily Flooded Herbaceous Alliance