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A.1324 | EcoArt 2002
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Name: A.1324
Reference: EcoArt 2002
Description: Plant associations within this alliance are found at upper elevations in the Rocky Mountains. Elevations range from 2520-3420 m. In alpine areas they occur on solifluction terraces where soil moisture is abundant. In the lower elevations associations are found in meadows, wooded slopes, and adjacent to streams. The ~Juncus drummondii$ association was found on rocky, inclined (2-10% slope), southeast-oriented sites which are subxeric to mesic. Snow cover typically occurs for 8.5-9.5 months. The parent material in the Front Range is metamorphic. Soils are skeletal with coarse fragments. Average pH is acidic, 4.9. The soil becomes dry and hard by fall if no summer precipitation occurs. Plant associations within this alliance are classified as short alpine or subalpine, dry bunch grasslands. ~Juncus drummondii$ dominates the graminoid stratum. Other graminoids typically include ~Carex nigricans, Carex pyrenaica$ in the alpine stands, or ~Hordeum brachyantherum, Deschampsia caespitosa$, and ~Muhlenbergia richardsonis$ in the lower elevations. The forb layer typically is codominant and can include ~Antennaria lanata, Erigeron melanocephalus, Caltha leptosepala, Sibbaldia procumbens, Antennaria alpina$, and ~Epilobium anagallidifolium$. Typical forbs from lower elevations include ~Iris missouriensis$ and ~Machaeranthera bigelovii (= Aster rubrotinctus)$. ~Polytrichum piliferum$ can dominate the moss layer in the more xeric stands. Adjacent community information was not available. 
Accession Code: VB.CC.1096.A1324
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.A.5.N.h
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: JUNCUS DRUMMONDII HERBACEOUS ALLIANCE
  Code: A.1324
  Common: Drummond's Rush Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Juncus drummondii Herbaceous Alliance