Resources
for Botanical Studies in the Washington, D.C., Region
Plants in
general (Kingdom Plantae)
The
Families of Flowering Plants
Watson, L. and M. J. Dallwitz 2004. The
Families of Flowering Plants: Descriptions, Illustrations, Identification, and Information
Retrieval. Version: 14
March 2004. Website. http://biodiversity.uno.edu/delta.