interior live oak Fagaceae Quercus wislizeni A. DC. Listen to the Latin symbol: QUWI2 Other Fact Sheets
Leaf: Alternate, simple, evergreen, leathery, ovate to elliptical, 1 1/2 to 2 inches long, margin either entire or with sharply pointed teeth; leaf surface flat, shiny green above, yellow-green below.
Flower: Species is monoecious; males are slender, yellow-green catkins 2 to 3 inches long; females are very small, in clusters of 2 to 4 in leaf axils; both appear in early spring with the leaves.
Fruit: Acorn, 1 to 1 1/2 inches long, narrow, cone shaped with a pointed end; cap is scaly and covers approximately 1/3 to 1/2 of the nut; matures in 2 seasons.
Twig: Moderate, greenish brown, fuzzy when young; buds clustered orange-brown, broadly triangular and pointed.
Bark: Young bark is smooth gray, green-brown; older stems become very dark rough and irregularly furrowed with scaly ridges.
Form: A medium sized tree with a short trunk and very broad round crown with ascending branches.

Looks like: coast live oak - island live oak - canyon live oak - scrub oak
leaf flower fruit twig bark form1 map
Additional Range Information:
Quercus wislizeni is native to North America.
Range may be expanded by planting.
See states reporting interior live oak.
External Links:
USDAFS Additional Silvics
USDA Plants Database
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Photos and text by: John Seiler,
Edward Jensen, Alex Niemiera,
and John Peterson
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