Blackjack Oak

Growth habit

Tree

Perennation

Long-lived polycarpic perennial

Native distribution

Eastern USA

Location

Schnee Oak Collection

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