White, Peter S., Tom Condon, Janet H. Rock, Carol Ann McCormick, Pat Beaty, and Keith R. Langdon. Wildflowers of the Smokies. Gatlingburg, TN: Great Smoky Mountains Natural History Association, 1996.

White, Peter S., Tom Condon, Janet H. Rock, Carol Ann McCormick, Pat Beaty, and Keith R. Langdon. Wildflowers of the Smokies. 2nd ed. Great Smoky Mountains Association.