County level data provided by John Kartesz of the Biota of North America Program
(All dot-maps were made by the author and are protected by copyright.)
Many thanks to:
Curtis Hansen at the Freeman Herbarium at Auburn University for allowing access to the collection and helping track down some difficult species.
Dr. Richard Wunderlin and Dr. Bruce Hansen at the University of South Florida for help with identification and etymology.
Dr. George Yatskievych at the Missouri Botanic Garden for helping with a great number of plant questions.
Allen, C. M. 197~. Grasses of Louisiana. University of Southwest Louisinia, Lafayette.
Borror, D. J. 1960. Dictionary of Word Roots and Combining Forms. Mayfield Publishing Company, Mountain View.
Britton, N. L. and H. A. Brown. 1970. An Illustrated Flora of the Northern United States and Canada. Dover Publications, Inc., New York.
Brummit, R. K. and C. E. Powell. 1992. Authors of Plant Names. Royal Botanic Gardens, Kew.
Gledhill, D. 1985. The Names of Plants. Cambridge University Press, Cambridge.
Gray, A. and M. L. Fernald. 1950. Gray's Manual of Botany. American Book Company, New York.
Harris, J. G. and M. W. 1994. Plant Identification Terminology. Spring Lake Publishing, Spring Lake.
Kurz, Don. 1997. Shrubs and Woody Vines of Missouri. Missouri Department of Conservation, Jefferson City.
Munz, P. A. 1968. A California Flora and Supplement. University of California Press, Berkeley.
Radford, A. E., H. E. Ahles, and C. R. Bell. 1968. Manual of the Vascular Flora of the Carolinas. University of North Carolina Press, Chapel Hill.
Steyermark, J. A. 1963. Flora of Missouri. Iowa State University Press, Ames.
Strausbaugh, P. D. and E. L. Core. 1977. Flora of West Virginia. Seneca Books, Inc., Morgantown.
Wunderlin, R. P. and B. F. Hansen. 2003. Guide to The Vascular Plants of Florida. University Presses of Florida, Gainesville.
Yatskievych, G. 1999. Steyermark's Flora of Missouri - Volume 1. Missouri Department of Conservation, Jefferson City.