Name:
Juniperus ashei - Juniperus pinchotii - Quercus mohriana Scrub & Open Vegetation Macrogroup
Reference:
NatureServe Biotics 2019
Description:
This scrub woodland vegetation is found in the High, Rolling, and Red Bed plains of Texas and Oklahoma ranging south into parts of the Edwards Plateau and Chihuahuan Desert regions of Texas, as well as the Southwestern Tablelands. Occurrences on dry, rocky sites typically include evergreen junipers and oaks such as <i>Juniperus ashei, Juniperus monosperma, Juniperus pinchotii, Quercus fusiformis, Quercus havardii, Quercus mohriana</i>, and <i>Quercus sinuata</i>, as well as <i>Prosopis glandulosa var. glandulosa</i> in some examples. Other woody species include <i>Buddleja racemosa, Cercocarpus montanus, Dalea formosa, Gutierrezia sarothrae, Mimosa borealis, Rhus lanceolata</i>, and <i>Rhus trilobata</i>. On deeper alluvial soils, <i>Prosopis glandulosa</i> may dominate, with species such as <i>Mahonia trifoliolata, Sideroxylon lanuginosum</i>, and <i>Ziziphus obtusifolia</i> also commonly encountered. Characteristic graminoids include <i>Aristida purpurea, Bouteloua curtipendula, Bouteloua gracilis, Bouteloua hirsuta, Bouteloua dactyloides, Pleuraphis mutica</i>, and <i>Schizachyrium scoparium</i>. Forbs, including species such as <i>Artemisia ludoviciana, Calylophus</i> sp., <i>Chaetopappa ericoides, Croton monanthogynus, Indigofera miniata, Krameria lanceolata, Melampodium leucanthum, Rhynchosia senna</i>, and <i>Ruellia nudiflora</i>, may also be present. The canopy is less than 6 m in height, and may be open with a grassy or rocky understory, or may form dense low patches or mottes interspersed with grasslands and rock outcrops. Bare ground is often conspicuous, and herbaceous cover, where present, is usually dominated by mid to short grasses and forbs. This vegetation occupies dry, rocky sites on mesas and escarpment breaks over a variety of geologic strata, including sandstones, shales, limestone and basalt. Alternatively, <i>Prosopis glandulosa</i>-dominated occurrences may occupy deeper, alluvial soils, often along drainages or topographic lows. Soils are variable in depth, and this vegetation can occur where there is little soil development.
Accession Code:
urn:lsid:vegbank.org:commConcept:40526-{CC117F36-ACB3-45D9-A419-3ED1E77F4E41}
Plot-observations of this Community Concept:
0
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