Name:
Acacia greggii - Eriogonum fasciculatum Desert Wash Shrubland
Reference:
NatureServe Biotics 2019
Description:
This is an uncommon wash association that occurs in the Mojave Desert of California and southern Nevada, and it extends into the Southern California Mountains and Valleys and Colorado Desert of California. It is characterized by an open to intermittent shrub canopy (6-44% cover) codominated by <i>Acacia greggii</i> and <i>Eriogonum fasciculatum</i> usually with a rich mixture of other shrubs. Other shrubs frequently present include <i>Hymenoclea salsola, Bebbia juncea, Coleogyne ramosissima, Ephedra nevadensis, Ericameria</i> spp., <i>Ferocactus cylindraceus, Hyptis emoryi, Hymenoclea salsola, Keckiella antirrhinoides, Justicia californica, Larrea tridentata, Lycium andersonii, Opuntia</i> spp., <i>Pleurocoronis pluriseta, Salvia mohavensis, Salazaria mexicana, Thamnosma montana, Viguiera parishii, Yucca baccata</i>, and <i>Yucca schidigera</i>. The herbaceous cover is often low but variable, ranging from 1-75% cover. Commonly associated herbs include <i>Achnatherum speciosum, Amsinckia tessellata, Galium stellatum, Lotus rigidus, Mirabilis laevis var. villosa, Salvia columbariae, Sphaeralcea ambigua, Xylorhiza tortifolia</i>, and invasive exotics <i>Bromus rubens</i> and <i>Erodium cicutarium</i> that can contribute significant cover. Emergent tree cover is sparse (<3%), if present. Mosses and lichens are often present. Stands occur on slopes above washes, shallow valleys, flats, hills and mountains at mid to upper elevations (650-1550 m). Sites are found primarily on midslope positions with slopes ranging from gentle to steep (4-40°) on various aspects. Substrates appear rocky though variable in coarse fragments on the ground surface with variable amounts of bedrock, boulders, cobbles, or gravel. Soils range in texture from coarse sand to loam and are derived from igneous rocks.
Accession Code:
urn:lsid:vegbank.org:commConcept:37443-{6C9DEF69-9C86-4A47-832A-CAB416F4AA47}
Plot-observations of this Community Concept:
0
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