United States National Arboretum

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name = U.S. National Arboretum
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caption = The National Capitol Columns originally supported the old East Portico of the United States Capitol (1828). The columns were removed during expansion of the Capitol in 1958.
location =24th and R Sts., NE.
Washington, D.C.
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added = April 11, 1973
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refnum = 73002122
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governing_body = The United States National Arboretum is an arboretum in Washington, D.C., operated by the United States Department of Agriculture's Agricultural Research Service as a division of the Henry A. Wallace Beltsville Agricultural Research Center. It was established in 1927 by an act of Congress after a campaign by USDA Chief Botanist Frederick Vernon Coville.

It is 1.78 km² (446 acres) in size, and is located 3.5 km (2.2 miles) northeast of the Capitol, with entrances on New York Avenue and R Street. Nine miles of roadways wind through and connect the numerous gardens and collections on the campus.

The arboretum functions as a major center of botanical research. It conducts wide-ranging basic and developmental research on trees, shrubs, turf, and floral plants. It has a library with 10,000 volumes and approximately 90 publications concentrating in botanical literature.

Gardens/Collections

Major garden features

*Aquatic Plants Collection
*Asian Collections
**Japanese Woodland
**Asian Valley
**China Valley
**Korean Hillside
*Classical Chinese Garden (proposed), a convert|12|acre|ha|adj=on garden designed by a joint team from China and the United States.
*Flowering Tree Collection
**Flowering Tree Walk
*The Friendship Garden and Arbor House
**Gift Shop
**Friends of the National Arboretum Office
**National Bonsai Foundation Office
*Gotelli Dwarf and Slow Growing Conifer Collection
**Gotelli & Watnong Collections
**Spruces, Firs, Japanese Maples
*Introduction Garden
*National Bonsai and Penjing Museum
**Japanese, Chinese, North American, and International Pavilions
*National Capitol Columns (see image above)
*National Grove of State Trees, specimens of most of the U.S. State trees
*National Herb Garden
**Historic Roses
**Knot Garden
**Specialty Gardens
*Native Plant Collections ("Fern Valley")
**Fern Valley Woodland
**Prairie
**Southeastern Coastal Plain

ingle-genus groupings

*Azalea Collections
**Glenn Dale Azalea Hillside
**Morrison Garden
**Lee Garden
*Dogwood Collection
**Dogwoods
**Anacostia River Overlook
*Holly Collection
*Magnolia Collection
*Maple Collection
*National Boxwood Collection
*Perennial Collections
**Peony
**Iris
**Daylily
**Daffodil

ee also

*List of botanical gardens in the United States
*North American Plant Collections Consortium

External links

*cite web
title=United States National Arboretum
url=http://www.usna.usda.gov/
accessmonthday=November 23
accessyear=2005
* [http://www.fona.org/ Friends of the National Arboretum]