See quotations.
1817. On the prairie [the timber is], post oak (Quercus obtusiloba) black jack (Quercus nigra), and shell bark hickory, (Juglans squamosa.)—John Bradbury, ‘Travels,’ p. 257.
1826. A species of oak, called post oak, indicating a cold, spungy, and wet soil.—T. Flint, ‘Recollections,’ p. 56.
