Hinckley's Oak (Quercus hinckleyi)

Photograph of the Hinckley's Oak

TPWD ©

Other Names
Chaparro
Texas Status
Threatened
U.S. Status
Threatened, Listed 8/26/1988
Description
Hinckley's oak is a dwarf, evergreen, multi-branched shrub which forms thickets about 4 feet tall. It has small waxy, gray-green leaves less than half an inch long. The leaves are round or oval with wavy margins and coarse spiny teeth. Evidence from fossil pack rat middens indicates that Hinckley's oak was more common 10,000 years ago when the climate of west Texas was wetter.
Life History
This unique shrub produces small acorns in the fall. The acorns are solitary or paired, oval, brown, and about a half-inch wide. Reasons for the decline of this species include limited distribution, climate change, and low reproduction.
Habitat
It grows on dry, rocky limestone slopes in desert scrub communities of west Texas.
Distribution
Hinckley's oak is distributed in the Trans-Pecos region of west Texas, Brewster and Presidio Counties. Most of the known populations occur in Texas Parks and Wildlife's Big Bend Ranch State Park.

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