Scientific Name: Quercus macrocarpa
Common Name: bur oak
Family Name: Fagaceae
Origin: Canada - eastern, U.S. - northeast
Hardiness Zone: Zone 2: (-46 to -40 °C)
Plant Type: Tree - deciduous
Mature Size: 10 - 15m x 10 - 15m (height x width)
Habit: Spreading, Twiggy
Form: Oval - vertical
Texture: Medium - coarse
Landscape Uses: Screening, Shade tree, Street (boulevard tree), Tall background, Wildlife food, Woodland margin
Exposure: Full sun, Part sun/part shade
Soil or Media: Alkaline, Humus rich
Leaves: Simple, Lobed, Alternate, Leathery, Pinnate venation, Oblanceolate, Obovate, Pinnately lobed
Flowers: Catkin (ament), Green, Apr
Fruit: Nut, Brown, Sep-Oct
Key ID Features:
Loose, open oak tree; leaves alternate, most obovate-oblanceolate, 14-20(-25)cm long x 8-12cm wide, dull, margins variable but most with rounded lobes, base taper toward the petiole. Winter ID: older twigs may have corky ridges; stipules may be persistent, 7-12mm long x 1mm wide; multiple ovoid terminal buds; lateral buds rounded, may be fuzzy; leaf sars mostly half-circle with scattered bundle scars. Quite stout, yellow-brown, often with corky ridges; multiple terminal buds are small, round, and may be somewhat pubescent often surrounded by thread-like stipules; laterals are similar, but smaller.