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CEGL007785 Quercus fusiformis - Prosopis glandulosa var. glandulosa / Malvaviscus arboreus var. drummondii Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Texas Live Oak - Honey Mesquite / Texas Mallow Forest
Colloquial Name: South Texas Sand Sheet Oak Motte Forest
Hierarchy Level: Association
Type Concept: This community consists of a fine mosaic of live oak mottes and midgrass grassland openings in deep, loose sand of Pleistocene sand dunes in the South Texas Sand Sheet (mainly of Brooks and Kenedy counties). The canopy of mature mottes is composed almost entirely of Quercus fusiformis (see comments on oak taxonomy below); Prosopis glandulosa var. glandulosa is present but generally occurs at a subcanopy level in light gaps or along margins. The shrub layer is very open in mature stands and is composed of Zanthoxylum hirsutum, Condalia hookeri, Lantana urticoides, Ziziphus obtusifolia var. obtusifolia, and a very few other species. The ground layer in deep shade is generally sparse; Malvaviscus arboreus var. drummondii is one of the few shade-tolerant herbaceous species present. Under more open mottes, grasses and forbs, more abundant in associated openings, may gain a foothold. Such openings are quite diverse and include various mid grasses, most notably Schizachyrium scoparium, Paspalum plicatulum, Eragrostis spp., and an abundance of forbs. Characteristic species include Acalypha radians, Argythamnia mercurialina var. pilosissima, Chamaecrista flexuosa var. texana, Cnidoscolus texanus, Croton argyranthemus, Dalea phleoides, Froelichia floridana, Galactia canescens, Gaura mckelveyae, Helianthemum georgianum, Monarda fruticulosa, Phlox cuspidata, Rhynchosia americana, Stillingia sylvatica, and Thelesperma nuecense.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: According to Nixon and Muller (1997), the nominal oak of this alliance (and all of coastal Texas southwest of the Brazos) should be considered Quercus fusiformis, likely introgressed with Quercus virginiana and/or the Mexican species Quercus oleoides.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The canopy of mature mottes is composed almost entirely of Quercus fusiformis (see comments on oak taxonomy below); Prosopis glandulosa var. glandulosa is present but generally occurs at a subcanopy level in light gaps or along margins. The shrub layer is very open in mature stands and is composed of Zanthoxylum hirsutum, Condalia hookeri, Lantana urticoides (= Lantana horrida), Ziziphus obtusifolia var. obtusifolia, and a very few other species. The ground layer in deep shade is generally sparse; Malvaviscus arboreus var. drummondii is one of the few shade-tolerant herbaceous species present. Under more open mottes, grasses and forbs, more abundant in associated openings, may gain a foothold. Such openings are quite diverse and include various mid grasses, most notably Schizachyrium scoparium, Paspalum plicatulum, Eragrostis spp., and an abundance of forbs. Characteristic species include Acalypha radians, Argythamnia mercurialina var. pilosissima, Chamaecrista flexuosa var. texana, Cnidoscolus texanus, Croton argyranthemus, Dalea phleoides, Froelichia floridana, Galactia canescens, Gaura mckelveyae, Helianthemum georgianum, Monarda fruticulosa (= Monarda punctata var. fruticulosa), Phlox cuspidata, Rhynchosia americana, Stillingia sylvatica, and Thelesperma nuecense.
Dynamics: No Data Available
Environmental Description: This community consists of a fine mosaic of live oak mottes and midgrass grassland openings in deep, loose sand of Pleistocene sand dunes in the South Texas Sand Sheet.
Geographic Range: This community occurs on sand dunes in the South Texas Sand Sheet (mainly of Brooks and Kenedy counties).
Nations: US
States/Provinces: TX
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684192
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G3
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.1 Warm Temperate Forest & Woodland Formation | F018 | 1.B.1 |
| Division | 1.B.1.Na Southeastern North American Forest & Woodland Division | D006 | 1.B.1.Na |
| Macrogroup | 1.B.1.Na.2 Live Oak - Texas Live Oak - Darlington Oak Forest Macrogroup | M885 | 1.B.1.Na.2 |
| Group | 1.B.1.Na.2.c Texas Live Oak - Wax Mallow Forest Group | G799 | 1.B.1.Na.2.c |
| Alliance | A3190 Texas Live Oak - Wax Mallow Forest Alliance | A3190 | 1.B.1.Na.2.c |
| Association | CEGL007785 Texas Live Oak - Honey Mesquite / Texas Mallow Forest | CEGL007785 | 1.B.1.Na.2.c |
Concept Lineage: merged in
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Diamond, D. D. 1993. Classification of the plant communities of Texas (series level). Unpublished document. Texas Natural Heritage Program, Austin. 25 pp.
- Nixon, K. C., and C. H. Muller. 1997. 5c. Quercus Linnaeus sect. Quercus. White oaks. Pages 471-506 in: Flora of North America Editorial Committee. Flora of North America, North of Mexico. Volume 3. Magnoliophyta: Magnoliidae and Hamamelidae. Oxford University Press, New York.
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.
- TNHS [Texas Natural History Survey]. No date. Unpublished data. Texas Natural History Survey, The Nature Conservancy, San Antonio.