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Eriogonum ovalifolium var. depressum Dwarf-shrubland | Western Ecology Working Group of...
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Name: Eriogonum ovalifolium var. depressum Dwarf-shrubland Reference: Western Ecology Working Group of... Description: This association has only been described from the northern edge of the Snake River Plain of southern Idaho. It occurs in a semi-arid region of relatively recent 'plains' volcanic activity. This is a very sparsely vegetated, dwarf-shrubland association. Total cover of all plant layers is typically less than 5% in mid-summer, though cover may be higher in the spring due to the presence of annuals. The most important species is Eriogonum ovalifolium var. depressum, a cespitose, evergreen perennial, forming mats 3-4 dm across. This species rapidly develops a deep root system (up to 1.2 m deep), allowing it to colonize the light, porous cinders. Several perennial forbs are common into July, including Phacelia hastata, Cryptantha interrupta, Machaeranthera canescens, Chaenactis douglasii, Stephanomeria spinosa, and Stephanomeria minor (= Stephanomeria tenuifolia). The annuals Mimulus nanus and Mimulus suksdorfii are present during the spring and early summer before soil moisture is depleted, as are the perennials Allium simillimum and Lewisia rediviva. All major species of this association are found within the inner canopy of Eriogonum ovalifolium var. depressum. This is most likely due to higher accumulations of seeds and fine materials captured by the Eriogonum mats, and to relatively high moisture, total nitrogen and available phosphorus occurring under the canopy.  Accession Code: VB.CC.21066.ERIOGONUMOVALIF Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Eriogonum ovalifolium var. depressum Dwarf-shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Cushion Wild Buckwheat Dwarf-shrubland   UID: ELEMENT_GLOBAL.2.685916 NatureServe Explorer   Code: CEGL001401   Scientific: Eriogonum ovalifolium var. depressum Dwarf-shrubland   Common: Cushion Wild Buckwheat Cinder Gardens (convergence) and Synonyms: (undetermined) Eriogonum ovalifolium var. depressum Dwarf-shrubland