Blackjack Oak
Quercus marilandica
Fagaceae
Growth habit
Tree
Perennation
Long-lived polycarpic perennial
Native distribution
Eastern USA
Location
Source of plant
Doug Goldman
Description
Small, slow-growing, gnarled, broad-headed tree reaching 6-10 m in height; bark thick, nearly black, shoots tomentose in the first year, brown and glabrous in the second. Leaves broadly obovate, usually truncate and bilobed at the apex, base tapered, 10-20 cm long, tough, deep green and glossy above,lighter with rusty pubescence beneath, fall color brown or yellow. Fruits short-stalked, grouped 1-2, long-ovate, to 2 cm long, often striped, about half covered by the cup.
USDA Hardiness Zone
6