Login | Datasets | Logout
 

View Community Concepts - Detail

A.1328 | EcoArt 2002
  click to update datacart
Name: A.1328
Reference: EcoArt 2002
Description: This alliance, found in the southern Great Plains, occurs on the edges of playa lakebeds. This description is strongly based on the part of the alliance found in the Midwest. Perennial graminoids and forbs under 1 m tall dominate this alliance. ~Pascopyrum smithii$ is the most abundant and consistent throughout the range of this alliance, though in some places ~Agrostis hyemalis, Elymus virginicus$, and ~Hordeum jubatum$ may be abundant. ~Buchloe dactyloides$ is often common in grazed sites. Early-season ephemeral annuals, such as ~Alopecurus carolinianus, Elatine rubella, Myosurus minimus$, and ~Veronica peregrina$, are ubiquitous, and ~Limosella aquatica$ and ~Plagiobothrys scouleri$ may be common. Perennial forbs are conspicuous in some places, including ~Ambrosia$ spp., ~Phyla cuneifolia (= Lippia cuneifolia), Oenothera canescens$, and ~Vernonia fasciculata$. Stands of this alliance often occur at the margin of playa and pond marsh communities and grade into upland tallgrass and mixedgrass prairie. The extent and species composition of stands vary with water levels from year to year. Species diversity is low to moderate. ^Stands of this alliance occur on nearly level ground and in very shallow depression in uplands. Soils are somewhat poorly drained, silty clay loams underlain by a clay pan. They are usually formed from loess. These areas may be temporarily flooded in winter and early spring but are usually dry by early summer. 
Accession Code: VB.CC.1100.A1328
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.i
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: PASCOPYRUM SMITHII INTERMITTENTLY FLOODED HERBACEOUS ALLIANCE
  Code: A.1328
  Common: Western Wheatgrass Intermittently Flooded Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Pascopyrum smithii Intermittently Flooded Herbaceous Alliance