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Platanus wrightii - Juglans major Forest | Western Ecology Working Group of...
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Name: Platanus wrightii - Juglans major Forest Reference: Western Ecology Working Group of... Description: This riparian forest is found along perennial and seasonally intermittent streams in the foothills zone of isolated desert mountain ranges in southeastern Arizona and southwestern New Mexico. Stands occur in narrow stream valleys and on gently sloping alluvial terraces. Elevations range from 1240-1700 m. This association requires reliable surface flow during the winter-spring months, is periodically inundated during spring runoff and generally occurs along small, perennial streams. The Gray Ranch stand in southwestern New Mexico occurs on gravelly alluvium deposited among boulders derived from rhyolite alluvium parent material. These depositional soils are silty loam in texture. The tree canopy is codominated by the broad-leaved trees <i>Platanus wrightii</i> and <i>Juglans major</i>. Total canopy cover is over 70%, and is usually composed of a few large <i>Platanus wrightii</i> dominating the stand, with larger numbers of smaller <i>Juglans major</i> trees. Height of the canopy is typically 18-23 m. Other broad-leaved deciduous trees that may be present in some stands include <i>Fraxinus velutina, Populus angustifolia</i>, and <i>Alnus oblongifolia</i>. The understory has a sparse shrubby layer, with less than 10% total cover composed of saplings of <i>Platanus</i> and <i>Juglans</i> spp., and a highly variable mix of shrub species that may include <i>Baccharis salicifolia, Rhus microphylla</i>, and <i>Chilopsis linearis</i>. The sparse to moderately dense herbaceous layer may have high species diversity. At Gray Ranch, NM, the most abundant herbaceous species are the perennial grasses <i>Bouteloua curtipendula</i> (15% cover) and <i>Setaria grisebachii</i> (10% cover). Other grasses that may occur include <i>Leptochloa dubia, Muhlenbergia</i> spp., <i>Elymus elymoides</i>, and <i>Elymus glaucus</i>. Forbs are sparse, with less than 5% cover.  Accession Code: VB.CC.32912.CEGL000645 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.683800 NatureServe Explorer   Translated: Arizona Sycamore - Arizona Walnut Forest   Scientific: Platanus wrightii - Juglans major Forest   Code: CEGL000645