1. ✦Flora Oklahoma Project, Assistant Coordinating Editor
   

2. ✦Pollination Ecology
   

3. ✦Systematics of Verbena
   

4. ✦Floristics and community ecology of Oklahoma
   

5. ✦Diversity of Acer (maples)
   

Courses Taught

1. ✦Fundamentals of Biology
   

2. ✦General Botany
   

3. ✦Principles of Ecology
   

4. ✦Economic and Ethnobotany, Honors Junior-Senior Seminar
   

5. ✦Environmental Science
   

6. ✦Plant Systematics