Boerne Chapter

Chapter Meeting, May 7

The meeting will start with a social time at 6:00pm, at the Cibolo Nature Center Auditorium. Announcements will begin at 6:45pm, followed by the presentation. For the social time, please bring any snacks/appetizers/desserts that you would like to share. The speaker will be Leslie L. Bush, a paleoethnobotanist: an archaeologist who specializes in identifying bits of plants preserved on archaeological sites, usually in the form of charcoal and occasionally as waterlogged or desiccated plant parts. Through her consulting practice, Macrobotanical Analysis, she is currently involved with investigations associated with Lake Ralph Hall in East Texas, road improvements in Webb County, and a small pueblo site in New Mexico. She will discuss Texas Plants and Indigenous Landscapes: Insights from Archaeology. This talk will cover four or five pre-Columbian archaeological sites from across the state with special attention to how sites are located in relation to natural features of the landscape, what plants would have been available to site inhabitants, what plants were recovered in archaeological investigations, what purposes they might have served, and how such knowledge is inferred

About the Region

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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