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Pinus discolor / Piptochaetium fimbriatum Woodland | Western Ecology Working Group of...
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Name: Pinus discolor / Piptochaetium fimbriatum Woodland Reference: Western Ecology Working Group of... Description: This Madrean conifer woodland occurs in the "Borderlands" of southeastern Arizona, southwestern New Mexico and extends into central New Mexico and probably adjacent northern Mexico. Stands are naturally small and patchy in distribution, and limited to moist microsites of canyons or cooler open slopes. It occupies alluvial slopes and benches, upper slopes, drainages and washes, often with cooler northern aspects. Elevation is roughly 1680-2100 m. Stands in the Animas Mountains were on 12%, northwest-facing slopes. The substrate was loam derived from andesite with surface rock and gravel, together averaging 15% cover. Litter dominates the ground cover (72%). The tree canopy has 25-60% cover and is codominated by <i>Pinus discolor</i> and <i>Juniperus deppeana</i> with <i>Quercus grisea</i> or <i>Quercus x organensis [arizonica x grisea]</i> hybrid typically present. Scattered shrubs (&lt;10% cover) are common, often with high diversity, and may include <i>Nolina microcarpa, Rhus trilobata, Cercocarpus montanus, Yucca baccata, Garrya wrightii, Quercus toumeyi</i>, and <i>Fendlera rupicola</i>. The moderately dense herbaceous layer (25-45% cover) is dominated by perennial grasses, such as <i>Piptochaetium fimbriatum, Bouteloua gracilis, Bouteloua curtipendula</i>, or <i>Eragrostis intermedia</i>, but is typically diverse and includes sparse cover of many other grass and forb species. The perennial grass-dominated herbaceous layer is diagnostic of this late successional <i>Pinus discolor / Juniperus deppeana</i> woodland.  Accession Code: VB.CC.33126.CEGL000768 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.2.685038 NatureServe Explorer   Translated: Border Pinyon / Pinyon Speargrass Woodland   Scientific: Pinus discolor / Piptochaetium fimbriatum Woodland   Code: CEGL000768   Common: Madrean Woodland