Name:
Isocoma acradenia Desert Scrub
Reference:
NatureServe Biotics 2019
Description:
The dominant and characteristic shrub <i>Isocoma acradenia</i> forms an open shrub layer (to 35% cover). Other shrubs often present at low cover include <i>Atriplex canescens, Atriplex polycarpa, Larrea tridentata</i>, and <i>Suaeda moquinii</i>. The emergent tree layer, if present, is sparse, and the herbaceous layer is open. Dominant and characteristic herbs range from sparse to moderately dense but are typically open (20-30% cover) and include <i>Schismus</i> spp., <i>Camissonia</i> spp., <i>Cryptantha</i> spp., and <i>Pectocarya platycarpa</i>. Others often present are <i>Abronia villosa, Amsinckia</i> spp., <i>Brassica tournefortii, Camissonia claviformis, Chaenactis stevioides, Cleomella obtusifolia, Cryptantha pterocarya, Descurainia pinnata, Eremalche exilis, Erodium cicutarium, Hesperocallis undulata, Machaeranthera</i> spp., <i>Malacothrix glabrata, Oenothera deltoides, Pectocarya setosa</i>, and <i>Pleuraphis rigida</i>. Commonly associated nonvascular plants include cryptogamic crust. The association is known from the Imperial Valley, Mojave Desert and from the southern San Joaquin Valley and Carrizo Plain of southern California where it is found primarily on low and midslopes at elevations ranging from approximately 25 to 300 m with northeast and southwest aspects. Soils are variable and derived from alluvium and dune sand; textures include sand and loamy sand, but include sites with finer-textured soil.
Accession Code:
urn:lsid:vegbank.org:commConcept:34224-{78940B83-889F-44C4-B606-71F7E1886CED}
Plot-observations of this Community Concept:
0
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