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Smithsonian sunburst Smithsonian National Postal Museum
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  • Ulmus americana 'Jefferson'
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Ulmus americana 'Jefferson'

Object Details

Description
This American elm cultivar has strong resistance to Dutch elm disease, but is mainly only planted in Washington, DC. Introduced in 2005, it was reportedly cloned from an elm right here on the National Mall that has survived since the 1930s. It is considered sterile.
Hardiness
-20 - 30 F
Bloom Time
February to March
Provenance
From a cultivated plant not of known wild origin
Data Source
Smithsonian Gardens
Accession Number
2024-1831A
Restrictions & Rights
Usage conditions apply
Life Form
Deciduous tree
Average Height
40-50'
Fall Color
Yellow
Foliage Characteristics
Simple, alternate, ovate, double serrated leaves.
Fruit Characteristics
Sterile
Structure
Vase
Range
Cultivated
See more items in
Smithsonian Gardens Tree Collection
On Display
National Air & Space Museum
Common Name
American Elm cultivar
Group
[vascular plants]
Class
Equisetopsida
Subclass
Magnoliidae
Superorder
Rosanae
Order
Rosales
Family
Ulmaceae
Genus
Ulmus
Species
americana
Topic
Trees
Living Collections
Record ID
ofeo-sg_2024-1831A
Usage
Not determined
GUID
http://n2t.net/ark:/65665/ax78459623e-dce3-4525-b595-b2e4444fcdad

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Visit »

Open daily 10 a.m. to 5:30 p.m.

Admission is always free!

2 Massachusetts Ave., N.E.
Washington, DC 20002

Our entrance is on the corner of First Street and Massachusetts Avenue NE.

street map of Postal museum

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