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Pinus discolor / Quercus toumeyi Woodland | NatureServe Biotics 2019
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Name: Pinus discolor / Quercus toumeyi Woodland
Reference: NatureServe Biotics 2019
Description: This Madrean conifer woodland occurs in the "Borderlands" region in southeastern Arizona and extreme southwestern New Mexico (Animas and Peloncillo mountains) and likely occurs in adjacent northern Mexico. Stands are small and patchy in distribution and limited to mountain and foothill slopes at elevations of 1800-1860 m, and are often found within a matrix of <i>Quercus toumeyi</i> chaparral. Soils are derived from rhyolite parent material. This late-successional woodland association has an open to moderately dense tree canopy (20-80% cover) codominated by the evergreen trees <i>Pinus discolor</i> and <i>Juniperus deppeana</i>, with occasional <i>Juniperus coahuilensis, Juniperus monosperma, Quercus arizonica</i>, or <i>Quercus emoryi</i> present. The moderately dense to dense shrub layer (&gt;25% cover) is dominated by the broad-leaved evergreen oaks <i>Quercus toumeyi, Quercus toumeyi x grisea</i> hybrid, and includes many other shrub species such as <i>Arctostaphylos pungens, Garrya wrightii, Nolina microcarpa, Agave palmeri, Rhus trilobata, Rhus virens</i>, and <i>Dasylirion wheeleri</i>. The herbaceous layer is generally sparse and dominated by perennial grasses with scattered forbs. Species include <i>Schizachyrium cirratum, Aristida schiedeana var. orcuttiana, Bouteloua curtipendula, Muhlenbergia emersleyi, Eragrostis intermedia, Bouteloua gracilis, Piptochaetium fimbriatum, Phaseolus</i> spp., and <i>Desmodium</i> spp. The dominance of <i>Quercus toumeyi</i> in the shrub layer is diagnostic of this <i>Pinus discolor</i> woodland type. 
Accession Code: urn:lsid:vegbank.org:commConcept:29682-{77DE799C-5164-4134-93A0-B0ED09161CB8}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Oct-2018 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.689547 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000773
  Translated: Border Pinyon / Toumey Oak Woodland
  Common: Madrean Conifer Woodland
  Scientific: Pinus discolor / Quercus toumeyi Woodland
(convergence) and Synonyms:
(similar) CEGL000773
(similar) Pinus discolor / Quercus toumeyi Woodland
(similar) Pinus discolor / Quercus toumeyi Woodland