Scientific Name:
Quercus rubra
Pronunciation:
KWURK-us ROO-bruh
Common Name:
red oak
Family Name:
Fagaceae
Plant Type:
Tree - deciduous
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.
Habit:
Spreading, Stiffly upright
Form:
Round
Texture:
Medium - coarse
Mature Height:
22 - 30m
Mature Spread:
15 - 25m
Growth Rate:
Moderate
Origin:
Canada - eastern, U.S. - northeast
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Full sun
Soil/Growing Medium:
Acidic
Water Use:
Moderate
Landscape Uses:
Specimen plant
Additional Info:
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Alternate
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Glabrous
Colour in Fall:
Yellow, Red
Shapes:
Elliptic, Ovate
Apices:
Acute
Margins:
Cleft (parted)
Inflorescence Type:
Catkin (ament)
Flower Morphology:
Monoecious plant
Number Of Petals:
0
Ovary Position:
Inferior
Colour (petals):
Not showy, Green-yellow
Flower Scent:
None
Flower Time at Peak:
Apr, May
Fruit Type:
Edible, Nut
Fruit Colour:
Brown
Fruiting Time:
Aug, Sep
Additional Info:
Not showy, Edible
Bark Morphology:
Smooth, Lightly fissured
Bark or Stem Colour:
Grey, Dark Grey, Brown
Leaf Bud Type:
Ovoid
Leaf Scar Shape:
Crescent shaped
Organ Modifications:
Ectomycorrhizae
Propagation:
Seed
Pest Susceptibility:
Anthracnose, Galls, Heart rot, Leaf miner insect, Root rot, Rust, Scale insects, Stem borer insects, Wilt (Drought tolerant)
Course(s):
- CLT Training
- HORT 1155
- Level 2 Apprenticeship
Location(s):
- (BKW) Boulevard Kwantlen Way : 410
- (BUG) BUG garden : 168
- (MCC) Main Campus Courtyard : q1
- (NRY) NuRserY : 564