Login | Datasets | Logout
 

View Community Concepts - Detail

A.1348 | EcoArt 2002
  click to update datacart
Name: A.1348
Reference: EcoArt 2002
Description: This alliance, found in the southern Great Plains, occurs in temporarily flooded playa lakebeds. Annual herbaceous graminoids and forbs mostly less than 1 m tall dominate the exposed mud flats of this alliance. Species composition and extent of stands vary from year to year. ~Coreopsis tinctoria, Echinochloa$ spp., ~Eleocharis engelmannii, Lindernia dubia, Polygonum$ spp., and ~Rumex stenophyllus$ are typical species of this alliance. In sites which have been modified to hold water longer, i.e., drainage ditches and re-use pits, perennials such as ~Eleocharis palustris$ and ~Marsilea vestita$ may dominate. The frequent water fluctuations and thick clay pan prevent establishment of most perennial hydrophytes typical of pond marshes. ^Stands of this alliance occur in shallow depressions in nearly level ground. Soils are silty clay loam underlain by a clay pan. These areas are temporarily or sometimes seasonally flooded by ponded rainwater and surface runoff. Sites dry out by mid to late summer in all but the wettest years. 
Accession Code: VB.CC.1122.A1348
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.j
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: POLYGONUM SPP. - ECHINOCHLOA SPP. TEMPORARILY FLOODED HERBACEOUS ALLIANCE
  Code: A.1348
  Common: Smartweed species - Barnyard Grass species Temporarily Flooded Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Polygonum spp. - Echinochloa spp. Temporarily Flooded Herbaceous Alliance