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Research Interests and Student Work

My research interests are in floristics, conservation, plant ecology, and plant systematics. My research group is active in working on the floristics of the Cross Timbers and Colorado River bottomland plant ecology. Students have been active in projects involving conservation of Cross Timbers plants. We have also completed studies that have examined the burrow ecology of the Texas kangaroo rat, a state-threatened species. Systematic studies of the genera Arachis (peanuts), Chelone (wild snapdragons endemic to eastern North America), Castilleja (paint brushes), and Nothochelone (a wild snapdragon endemic to western North America) are also ongoing.