The state of Texas trees

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At a glance one might think that trees only occur in forests in East Texas. Native Texas trees play a vital role as part of our rural and urban ecology, are a large part of our connection to our natural heritage, and are important as a connection to our shared experiences.

Desert hackberry (photo by Campbell & Lynn Loughmiller)
Desert hackberry
(photo by Campbell & Lynn Loughmiller)

Join us April 24 at the 10th Native Plant Spring Symposium, co-sponsored by the Native Plant Society and the Lady Bird Johnson Wildflower Center, where we will review the state of Texas trees. We will explore citizen science tree inventory programs, an overview of predominate tree species across the state, and invasive pests of trees and monitoring programs.

Our Spring Symposium will include a morning plenary session followed by in-depth afternoon breakout sessions with topics such as oak wilt monitoring programs, what the Citizen Forester program is all about and how to get involved, as well as an exciting visit on a Wildflower Center plant collecting trip to west Texas. While at the lunch break, enjoy the gardens and exhibits at the beautiful facility at the Lady Bird Johnson Wildflower Center.

Advance registration is $65, including afternoon box lunch. To register online, browse to the Symposium webpage at URL: http://www.wildflower.org/springsymposium/.

For additional symposium information, contact Stephen Brueggerhoff at the Wildflower Center, sbrueggerhoff@wildflower.org, or by phone: 512-232-0112

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About the Region

Fall Symposium 2025 Logo - Teach for the Future

Salado, the location of our Fall 2025 Symposium, lies at the intersection of two ecoregions: the Edwards Plateau (Limestone Cut Plain) and Blackland Prairie (Northern Blackland Prairie).

The Edwards Plateau area is also called the Hill Country; however, this general term covers a much larger area extending farther north. Spring-fed creeks are found throughout the region; deep limestone canyons, rivers, and lakes (reservoirs) are common. Ashe juniper is perhaps the most common woody species found throughout the region. Additional woody species include various species of oak, with live oak (Quercus fusiformis) being the most common. Sycamores (Platanus occidentalis) and bald cypress (Taxodium distichum) border waterways. This area is well known for its spring wildflower displays, though they may be viewed in spring, late summer, and fall, as well. According to Texas Parks and Wildlife, average annual rainfall in the Edwards Plateau ranges from 15 to 34 inches.

The Blackland Prairie extends from the Red River south to San Antonio, bordered on the west by the Edwards Plateau and the Cross Timbers, and on the east by the Post Oak Savannah. Annual rainfall averages 30 to 40 inches, with higher averages to the east. This region is dominated by prairie species. The most common grass species include little bluestem (Schizachyrium scoparium) and Indian grass (Sorghastrum nutans) in the uplands and switchgrass (Panicum virgatum) in the riparian areas and drainages. Common herbaceous flowering plants include salvias, penstemons, and silphiums. This area has suffered greatly from overgrazing and agricultural use. Few intact areas remain, though many of the plants can be found along county roadsides throughout the region.

Our fall Symposium host chapter, the Tonkawa Chapter, includes both of these ecoregions.

Source: Wildflowers of Texas by Michael Eason