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Rocky Mountain White Oak, Gambel Oak
Scientific Name: Quercus gambelii Nutt.
Family: Fagaceae
Rocky Mountain White Oak, Gambel Oak (Quercus gambelii)
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Picture U.S.D.A Forest Service, Courtesy of the Hunt Institute
Recommended Temperature Zone:
sunset: 1-3,10
USDA: 4 to 9

Frost Tolerance: Hardy to 15 F (-10 C)

Sun Exposure: Full sun

Origin: Southwestern USA (Arizona, Utah, Colorado, New Mexico), northwestern Mexico, above 5000 feet elevation (1500 m)

Growth Habits: Small deciduous tree or shrub, slowly growing to 30 feet tall (9 m) or more; the leaves are 3 to 6 inches long (7.5-15 cm), 2 to 3 inches wide (5-7.5 cm), with a hairy underside

Watering Needs: Little water

Propagation: Seeds (acorns), offsets

This tree is named after William Gambel, 19th century Western plant collector and Assistant Curator of the National Academy of Sciences.

Blooming Habits:
Insignificant bloom, catkin-like, in early spring. The female flowers are followed by acorns, ripening in late September.

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