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CEGL007950 Ulmus crassifolia - Celtis laevigata - (Ulmus rubra) / Carex digitalis - Geum canadense Floodplain Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Cedar Elm - Sugarberry - (Slippery Elm) / Slender Woodland Sedge - White Avens Floodplain Forest
Colloquial Name: Upper West Gulf Coastal Plain Circumneutral Cedar Elm Floodplain Forest
Hierarchy Level: Association
Type Concept: This floodplain forest occurs along the southwestern periphery of the Upper West Gulf Coastal Plain (and the adjacent West Gulf Coastal Plain) in eastern Texas. Ulmus crassifolia and Celtis laevigata are diagnostic of this type, and some examples have almost no other overstory species present, although Quercus phellos, Quercus similis, and Ulmus rubra are sometimes present. Ulmus crassifolia and/or Ulmus alata usually dominates the midstory with some Fraxinus pennsylvanica also present, as well as Forestiera ligustrina as a shrub. The most frequent herbaceous species include Poa autumnalis, Symphyotrichum racemosum, Elymus virginicus, Trepocarpus aethusae, Ruellia strepens, Dichanthelium commutatum, Carex cherokeensis, Oplismenus hirtellus, Phanopyrum gymnocarpon, and Muhlenbergia schreberi. In addition, Carex digitalis and Geum canadense are characteristic. Seedlings of Poncirus trifoliata (exotic) and Fraxinus pennsylvanica may also be common. In lower, wetter portions, the lower strata of this community may be dominated by Chasmanthium latifolium and Sabal minor.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Examples are known from ECS site H24-02 & H34-01. Plot H46-09A may also be placed with this association (Turner et al. unpubl. data).
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Ulmus crassifolia and Celtis laevigata are diagnostic of this type, and some examples have almost no other overstory species present, although Quercus phellos, Quercus similis, and Ulmus rubra are sometimes present. Ulmus crassifolia and/or Ulmus alata usually dominates the midstory with some Fraxinus pennsylvanica also present, as well as Forestiera ligustrina as a shrub. An occurrence on the Sam Houston National Forest is characterized by Ulmus crassifolia, Fraxinus pennsylvanica, Gleditsia triacanthos, and Celtis laevigata in the canopy, and dominated by Sabal minor in the understory. The ground cover is patchy and characterized by Carex cherokeensis and Phanopyrum gymnocarpon. In addition, Carex digitalis and Geum canadense are characteristic. Other forbs present include Polygonum virginianum, Lycopus rubellus, Samolus valerandi ssp. parviflorus (= Samolus parviflorus), Solidago altissima, and Sanicula canadensis. In a stand from the Davy Crockett National Forest assigned here, the canopy is dominated by Quercus similis and Ulmus crassifolia, with Gleditsia triacanthos, Pinus taeda, and Ulmus alata in the subcanopy. Additional woody species include Arundinaria gigantea, Forestiera ligustrina, Quercus velutina, Fraxinus americana, Callicarpa americana, Ilex decidua, Sabal minor, Vaccinium arboreum, and Crataegus sp. Woody vines include Bignonia capreolata and Toxicodendron radicans. Herbs and herbaceous vines include Ruellia, Sanicula sp., Carex sp., Chasmanthium sessiliflorum, Dichanthelium sp., Dichondra carolinensis, Smilax bona-nox, Solidago sp., Trachelospermum difforme, and the epiphytic Pleopeltis polypodioides.
Dynamics: No Data Available
Environmental Description: This association occurs in temporarily flooded small stream floodplains. Soils are silts and silt loams.
Geographic Range: As currently described, this association has a very limited range in the Upper West Gulf Coastal Plain and adjacent West Gulf Coastal Plain of southeastern Texas.
Nations: US
States/Provinces: OK?, TX
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684779
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G2G3
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.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Nb Southeastern North American Flooded & Swamp Forest Division | D062 | 1.B.3.Nb |
| Macrogroup | 1.B.3.Nb.4 Swamp Chestnut Oak - Bald-cypress - Pecan Southern Floodplain Forest Macrogroup | M031 | 1.B.3.Nb.4 |
| Group | 1.B.3.Nb.4.b Green Ash - American Elm - Black Willow Floodplain Forest Group | G759 | 1.B.3.Nb.4.b |
| Alliance | A3709 American Elm - Cedar Elm - Sugarberry West Gulf Coastal Plain Floodplain Forest Alliance | A3709 | 1.B.3.Nb.4.b |
| Association | CEGL007950 Cedar Elm - Sugarberry - (Slippery Elm) / Slender Woodland Sedge - White Avens Floodplain Forest | CEGL007950 | 1.B.3.Nb.4.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: < Cedar Elm - Hackberry / Justicia Loamy Wet-Mesic Stream Bottoms (Turner et al. 1999)
- NatureServe Ecology - Southeastern United States. No date. Unpublished data. NatureServe, Durham, NC.
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.
- Turner, R. L., J. E. Van Kley, L. S. Smith, and R. E. Evans. 1999. Ecological classification system for the national forests and adjacent areas of the West Gulf Coastal Plain. The Nature Conservancy, Nacogdoches, TX. 95 pp. plus appendices.
- Turner, R. L., J. E. Van Kley, L. S. Smith, and R. E. Evans. No date. Unpublished data from the national forests and adjacent areas of the West Gulf Coastal Plain. The Nature Conservancy, Nacogdoches, TX.