The D.C. Herbarium, maintained by the Smithsonian Institution, is a collection of those plants found in the Washington, D.C. - Baltimore, MD region. This Web site allows users to query the online database for plants of interest and includes an image and distribution map for most species, and an estimated map location for most specimens. The site also contains an image gallery of D.C. area flora and first-flowering date records since 1970.
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