Northern Red Oak (Quercus rubra)
[ Trees > Hardwoods > Oaks . . . ] Forest Type: Oak-Hickory
by Michael Kuo
Note: The red oaks (those with bristle-tipped leaves) of eastern North America are notoriously difficult to separate--a task compounded by the fact that the trees often hybridize in nature.
Habitat: Able to grow in dry or moist soil; often in mixed stands; east of the Great Plains.
Stature: 60-100 feet high (or larger); to 4 feet in diameter; with a broad, rounded crown.
Leaves: With bristle tips; 5-9 inches long; with 7-11 lobes; sinuses extending about halfway to the midrib; often dull (not shiny) on the upper surface; dark green above; lighter green and smooth (except for a few hairs near the ribs) below.
Bark: Dark gray to black; thick; often furrowed and with wide, flat, paler ridges in age; from a distance often appearing striped.
Acorns: Bitter; to 1 inch long; enclosed at the base, or to 1/3 of the length, in a shallow cup with pressed-down scales (the tips of the scales are not "free"); appearing every two years.
Buds: About 1/3 inch long; smooth and shiny, or with a few small hairs near the scales; reddish brown.
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Cite this page as:
Kuo, M. (2005, September). Northern red oak (Quercus rubra). Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/trees/quercus_rubra.html