On June 4, from 10 a.m. until noon at the Pisgah Center for Wildlife Education, Tim Spira will give a 45-minute presentation followed by questions and discussion about the ecology of Southern Appalachian Wildflowers. Spira is a plant ecologist, photographer, native plant gardener and professor of botany at Clemson University in Clemson, S.C., where he teaches courses in field botany, plant ecology and the natural history of wildflowers. He’s just published Wildflowers and Plant Communities of the Southern Appalachian Mountains and Piedmont: A Naturalist’s Guide to the Carolinas, Virginia, Tennessee, and Georgia (University of North Carolina Press). The event will be followed by a book signing and guided wildflower walk.