Resources
for Botanical Studies in the Washington, D.C., Region
References
for plants in general
(Kingdom
Plantae)
Selected Gardening Reference
A–Z Encyclopedia of Garden Plants.
Brickell, Christopher and Judith D. Zuk,
eds. 1997. The American Horticultural Society. A–Z Encyclopedia of Garden Plants. DK Publishing, Inc.
1092 pp.
(many color
illustrations, great plant descriptions, growing information)