We gratefully acknowledge the funding provided by the U.S. Fish and Wildlife Service to develop this web site and their commitment to plant conservation.

Special thanks to General Administration and Program Support (GAPS) for programming this website.

Line drawings provided by Kentucky Native Plants Society

Site design, graphics and maps by KSNPC.

References:
• Crum, H. A. and L. E. Anderson. Mosses of North America. Vol. 1 and 2. Columbia University Press. New York.
• Fernald, M.L. 1950. Gray's Manual of Botany, 8th ed., Corr. Printing, 1970. Van Nostrand, New York.
• Gleason, H.A., and A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. The New York Botanical Gardens, Bronx, New York, USA.
• Jones, Ronald. 2005. Plant Life of Kentucky: an illustrated guide to the vascular flora. University of Kentucky Press, Lexington, KY.
• Kentucky Natural Heritage Database. 2006. Office of Kentucky Nature Preserves, Frankfort, KY.
• Medley, M.E. 1993. An annotated catalog of the known or reported vascular flora of Kentucky. Ph.D. Dissertation, University of Louisville, Louisville, KY.
• Steyermark, J. 1963. Flora of Missouri. Iowa State University Press, Ames, IA.
• Weckman, T. J. 1999. A distributional and taxonomic study of the genus Viburnum. (Caprifoliaceae) in Kentucky. M.S. Thesis. Eastern Kentucky University, Richmond, KY.
• Weakley, A.S. 1998. Flora of the Carolinas and Virginia. Working Draft of May 14, 1998.
• Wofford, B. E. 1989. Guide to the vascular plants of the Blue Ridge. The University of Georgia Press. Athens, GA.

About the Photographs:
All photographs found on the Kentucky Rare Plant Database Web site are copyrighted material and may not be used without permission of the photographer. To request more information about a photograph or photographer contact Deborah White (deborah.white@ky.gov).

Photographers:
Thanks to Thomas G. Barnes, Richard Cassell, James Kiser, John MacGregor and Cary Tichenor for providing images used in the Rare Plants Database.

Thanks to USDA-NRCS PLANTS Database and the following photographers for use of images appearing on the PLANTS Database Web site (http://plants.usda.gov/):
• Larry Allain
• William and Wilma Follette
• David Gibson
• William S. Justice
• Robert H. Mohlenbrock

Thanks to the University of Wisconsin- Stevens Point Freckmann Herbarium and Michael Lüth for use of images appearing on the UWSP Web site (http://wisplants.uwsp.edu/).

Thanks to the University of Tennessee Herbarium and the following photographers for the use of images appearing on the TENN Web site (http://tenn.bio.utk.edu/):
• John Beck
• Dan Busemeyer
• Richard Cassell
• Edward W. Chester
• Jerry Drown,Tennessee Native Plant Society
• Kurt Emmanuele
• A. Murray Evans
• Chris A. Fleming
• Bart Jones
• Edgar B. Lickey
• Alan S. Heilman
• Otto Hirsch, Tennessee Native Plant Society
• Dennis D. Horn
• Edgar B. Lickey
• John McGregor
• Mark Pistrang
• Daniel Reed
• Dick Sooy
• B. Eugene Wofford
• Wofford and Chester*
• Tennessee Division of Natural Heritage

*Images with Wofford and Chester caption are from “Guide to Trees, Shrubs, and Woody Vines of Tennessee” by B. Eugene Wofford and Edward W. Chester. For additional information about this book contact the University of Tennessee Press(under seasonal catalogs)at: www.utpress.org