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  • Quercus bicolor
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Quercus bicolor

Object Details

Description
The swamp white oak is a durable, native tree which enjoys swampy growing conditions. Its scientific name of “bicolor” refers to the leaves, which are green above, and silvery white beneath.
This oak is listed as Threatened in Maine.
Hardiness
-40 - 20 F
Attracts
Birds, butterflies
Bloom Time
April to May
Ethnobotanical Uses
Some Native Americans and pioneers ate the acorns of this tree raw or cooked. The acorns can be grounds into powder and used as a thickener in food or mixed with other ingredients to make bread. Roasted acorns have also been used as a coffee substitute. Bitterness of acorns is caused by tannins, which can be removed by leachinging under running water. Mulch made of the dead leaves of this tree can repel slugs, grubs, and insects.
Medicinal / Pharmaceutical
Oak galls were used by some Native Americans to treat hemorrhages, chronic diarrhea, and dysentery. Parts of this oak were also used to treat cholera, broken bones, and consumption.
Provenance
From a cultivated plant not of known wild origin
Data Source
Smithsonian Gardens
Accession Number
2022-0426A
Restrictions & Rights
Usage conditions apply
Life Form
Deciduous tree
Average Height
50-60'
Bark Characteristics
Dark gray, scaly or flat-ridged, peels in large curls.
Bloom Characteristics
Flowers are seperate male and female catkins.
Fall Color
Red, yellow
Foliage Characteristics
Simple, alternate, obovate leaves with 5-10 rounded lobes and white hairs on leaf undersides. 4-8" long.
Fruit Characteristics
Rounded acorn with a fringed cap that covers a third to half of the acorn. Usually grow in pairs. .5-1" long.
Structure
Oval, irregular
Range
SE Canada to NC and E USA
Habitat
River bottomlands, depressions, along streamsides, swamp borders, moist peaty flats
See more items in
Smithsonian Gardens Tree Collection
On Display
National Air & Space Museum
Common Name
Swamp White Oak
Group
[vascular plants]
Class
Equisetopsida
Subclass
Magnoliidae
Superorder
Rosanae
Order
Fagales
Family
Fagaceae
Genus
Quercus
Species
bicolor
Topic
Trees
Living Collections
Record ID
ofeo-sg_2022-0426A
Usage
Not determined
GUID
http://n2t.net/ark:/65665/ax7f104edca-fce2-48b0-b60b-357b503816d1

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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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