John D. Byrd, Mississippi State University, Bugwood.org

John D. Byrd, Mississippi State University, Bugwood.org

John D. Byrd, Mississippi State University, Bugwood.org

Lynn Sosnoskie, University of Georgia, Bugwood.org

USDA NRCS PLANTS Database , Bugwood.org

USDA NRCS PLANTS Database , Bugwood.org

Joseph M. DiTomaso, University of California - Davis, Bugwood.org

Bruce Ackley, The Ohio State University, Bugwood.org

D. Walters and C. Southwick, USDA, Bugwood.org