Symposium registration

**ARCHIVED POST **

Our Fall 2014 symposium Northeast Texas: Diversity of Ecosystems will be held October 16-19 at the Texarkana Convention Center.  Located literally on the border of two states, “Twice as Nice” Texarkana is actually two cities—Texarkana, Texas, and Texarkana, Ark. Less than an hour to the northwest is Oklahoma and about a half-hour to the south is Louisiana. It’s truly a four-state region. Not only do those four geopolitical state lines converge in or near Texarkana, but several ecological lines converge there, too. Two of Texas’ ten vegetational zones—Piney Woods and Post Oak Savannah—bisect Texarkana’s Bowie County diagonally, and ecosystems converging all around include pine and hardwood forests, grasslands, deserts, swamps and even subtropics.

SymposiumThumbnailHeadquarters will be the Texarkana Convention Center. Located at 4610 Cowhorn Creek Road—on the Texas side of Texarkana, just off Interstate 30—the spacious environmentally friendly convention center boasts the prestigious LEED certification by the U.S. Green Building Council. Texarkana is located on Interstate 30, about 175 miles east of Dallas (just more than 2½ hours) on the border with Arkansas. The convention center and host hotel are located 13 minutes from Texarkana Regional Airport, which is served by American Eagle Airlines, and 9 minutes from Amtrak’s Texas Eagle station, on the Arkansas side of Texarkana.

Northeast Texas: Diversity of Ecosystems  is open to anyone interested in the role that native habitats play in our daily lives and offers a tremendous opportunity to learn how to restore and preserve our state’s rich and diverse native plant communities.

 

**ARCHIVED POST**

**ARCHIVED POST LINKS & PICTURES MAY NOT WORK**

**ARCHIVED POST AUTHOR: Bill Hopkins

About the Region

2026 Fall Symposium Logo

This low-elevations region of Texas extends inland from the barrier islands, about 60 or so miles, and stretches from Brownsville to Louisiana. In total, it covers about 9.5 million acres, with a high point of 150 feet in elevation. More than 1000 species of plants can be found in this region. On the southern end, species more common in Mexico (such as Sabal mexicana) and Central America occur.

The barrier islands provide us with dune systems, and clay flats to the inland side, which have species found in these areas alone. Many plants here, such as Ipomoea pes-caprae (beach morning glory), can be found throughout tropical regions of the globe. I’ve encountered the same species on the beaches of Guam.

Once inland, vast marshes and wet prairies occur. Occasionally, oak (Quercus fusiformis) groves can be found. Common grasses include species of Bothriochloa, Paspalum, and Sporobolus; eastern gamagrass (Tripsacum dactyloides); and switchgrass (Panicum species). Many rivers and creeks cut through the Gulf Prairies, and along these riparian areas various species of trees, Sabal minor, and other plants adapted to clay soils can be found. Due to overgrazing, farming, and fire suppression, woody species such as mesquite (Prosopis glandulosa) and huisache (Acacia farnesiana), and invasive species such as chinaberry (Melia azedarach), Brazilian pepper (Schinus terebinthifolius), and Chinese tallow (Sapium sebiferum) have increased and displaced our native flora.

Source: Wildflowers of Texas by Michael Eason