Scientific Name: Quercus rubra
Common Name: red oak
Family Name: Fagaceae
Origin: Canada - eastern, U.S. - northeast
Hardiness Zone: Zone 5: (-29 to -23 °C)
Plant Type: Tree - deciduous
Mature Size: 22 - 30m x 15 - 25m (height x width)
Habit: Spreading, Stiffly upright
Form: Round
Texture: Medium - coarse
Landscape Uses: Specimen plant
Exposure: Full sun
Soil or Media: Acidic
Leaves: Simple, Lobed, Alternate, Soft flexible, Pinnate venation, Glabrous, Elliptic, Ovate, Cleft (parted)
Flowers: Catkin (ament), Green-yellow, Apr-May
Fruit: Edible, Nut, Brown, Aug-Sep
Key ID Features:
Leaves alternate, most obovate, most blades 15-20cm long x 10-15cm wide; 7-11 major lobes (each have 1-3 smaller lobes or teeth), bristle-tipped, most major sinuses 1/3 to 1/2 way to midrib (not as deep as pin oak). Winter ID: branching upright (45 degree angle); persistent or fallen leaves; twigs reddish-brown, glabrous; buds brown to dark reddish-brown, scale margins may have pubescence; leaf scars raised, half-round with scattered bundle scars.