Name:
Pinus ponderosa / Quercus hypoleucoides Woodland
Reference:
NatureServe Biotics 2019
Description:
This highly diverse Madrean woodland association is restricted to the isolated "sky island" mountain ranges of southwestern New Mexico, southern Arizona, Trans-Pecos of Texas, and northern Mexico. It is specifically known from the Santa Catalina, Pinal, Santa Rita, Galiuro, Pinaleno, Chiricahua, Huachuca, Davis, and Peloncillo mountains. It is occasional along the southern edge of the Nantanes Plateau and uncommon along the eastern Mogollon Rim in the central highlands of Arizona. Stands typically occur in the mid-elevation range of ~<i>Pinus arizonica - Pinus engelmannii - Pinus leiophylla</i> Woodland Alliance (A3112)$$ at 1740-2165 m (5700-7100 feet). Slopes are steep to very steep with variable aspects, but generally the sites are mild and dry. Soils are predominantly Udic Haplustalfs, Udic Ustochrepts, and Lithic Ustochrepts derived from granite, rhyolite, or their metamorphic derivatives. <i>Pinus ponderosa</i> is the overstory dominant. <i>Pinus strobiformis</i> is occasionally a codominant. <i>Pseudotsuga menziesii, Pinus leiophylla</i>, and <i>Pinus engelmannii</i> are absent or accidental. <i>Juniperus deppeana</i> is often present as a minor climax species in the subcanopy. <i>Quercus hypoleucoides</i> is dominant in the undergrowth, reaching coverage as high as 60%. <i>Quercus arizonica</i> can be well-represented, but it is either not dominant or is clearly successional; <i>Quercus rugosa</i> can be present but usually is poorly represented and never dominant. Other common shrubs are <i>Nolina microcarpa, Arbutus arizonica, Ceanothus fendleri</i>, and <i>Garrya wrightii</i>. <i>Muhlenbergia longiligula</i> is common and typically dominates the otherwise sparse herb layer. <i>Muhlenbergia straminea</i> may be present but is not dominant. The most constant forbs are <i>Hedeoma hyssopifolia, Pseudocymopterus montanus</i>, and <i>Comandra umbellata</i>. In Texas, this community is known from the Davis Mountains.
Accession Code:
urn:lsid:vegbank.org:commConcept:29781-{AF065133-CE43-4950-9EFA-DDC28E881DB7}
Plot-observations of this Community Concept:
0
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