a relatively open tract of light, sandy soil supporting only a few oak trees in contrast to heavily wooded surroundings.
See also: oak opening
- 1799  To the westward . . . are oak plains, where the Indians cultivate corn.
- 1883  (1917)  At first it was oak plains, where the soil is sandy, but good for wheat, then pine flats, where we saw some of the handsomest pine trees I had ever seen.