Name:
Celtis laevigata - Ulmus crassifolia / Urvillea ulmacea Tamaulipan Riparian Scrub Alliance
Reference:
NatureServe Biotics 2019
Description:
This alliance occurs in a variety of floodplain settings in the Tamaulipan region of Texas and Mexico. The canopy is dominated and typified by <i>Celtis laevigata var. laevigata, Ulmus crassifolia, Salix nigra</i>, and <i>Fraxinus berlandieriana</i>. Other canopy species include <i>Sapindus saponaria var. drummondii, Leucaena pulverulenta, Prosopis glandulosa var. glandulosa</i>, and <i>Taxodium mucronatum</i>. The subcanopy is often poorly defined, including a mixture of subtropical and temperate species such as <i>Diospyros texana, Baccharis neglecta, Sideroxylon celastrinum, Xylosma flexuosa, Celtis ehrenbergiana</i>, and <i>Acacia greggii var. wrightii</i>. Lianas are <i>Serjania brachycarpa, Cocculus diversifolius, Clematis drummondii, Urvillea ulmacea, Toxicodendron radicans, Smilax bona-nox, Vitis mustangensis</i> and <i>Cardiospermum halicacabum</i>. Epiphytes are typically abundant, including <i>Tillandsia usneoides, Tillandsia recurvata</i>, and (rarely) <i>Tillandsia baileyi</i>. Characteristic herbs and low shrubs are <i>Rivina humilis, Chromolaena odorata, Capsicum annuum var. glabriusculum, Malpighia glabra, Petiveria alliacea, Celosia nitida, Plumbago scandens, Achyranthes aspera, Solanum triquetrum</i>, and <i>Salvia coccinea</i>. Woodland examples occur on terraces and may have well-developed grassy ground flora characterized by <i>Elymus virginicus</i>, along with <i>Chasmanthium latifolium</i>, and <i>Nassella leucotricha</i>. Variations in floodplain landform and hydrology (river margins, alluvial flats, resacas, levees, terraces) correspond to variations in dominance patterns corresponding to associations in this alliance.
Accession Code:
urn:lsid:vegbank.org:commConcept:39054-{B8EF571B-4C9F-423E-89E5-3C8C593DBF82}
Plot-observations of this Community Concept:
0
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