Name:
Ephedra torreyana - (Atriplex canescens, Atriplex confertifolia) Sparse Vegetation
Reference:
NatureServe Biotics 2019
Description:
This sparsely vegetated association is widely distributed in southern Utah and northern Arizona. This scrub is characterized by low cover of <i>Ephedra torreyana</i> with between 1 and 5% cover, usually accompanied by <i>Atriplex confertifolia</i> and/or <i>Atriplex canescens</i> as codominant species. Other associated shrubs contribute little cover. The herbaceous layer is diverse but contributes only sparse to low cover. Graminoids commonly present include <i>Pleuraphis jamesii, Achnatherum hymenoides</i>, and <i>Bromus tectorum</i>. Forbs are highly variable in composition and include <i>Eriogonum inflatum, Tiquilia latior, Sphaeralcea leptophylla, Stanleya pinnata, Amsonia tomentosa, Sphaeralcea parvifolia, Abronia fragrans</i>, and <i>Chamaesyce fendleri</i>. It occurs on a broad range of depositional and erosional landforms, including alluvial fans, benches, dunes, canyon bottoms, stream terraces, ledges, badlands, canyon rims, colluvial slopes, toeslopes, hillsides, ridges, mesas, and plateaus. Slopes range from flat to steep at elevations from 1043 to 1603 m. Substrates vary from rapidly drained clay soils to sand derived from colluvium or alluvium, riverine and basaltic cobbles, and sandstone bluffs.
Accession Code:
urn:lsid:vegbank.org:commConcept:34458-{E4D808EE-5C0C-44C2-AD37-EB6D3EC463F1}
Plot-observations of this Community Concept:
0
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