Trees, insects and diseases of Canada's forests

Leaves lobed, tip slender, notches U-shaped; buds completely covered with dense, grayish-white hairs

Leaves lobed, lower surface hairy; acorn covered with a fringed cup

Leaves coarsely toothed ending in a large tooth, 10-18 cm long, 10-15 principal veins per side

Leaves coarsely toothed, 5-15 cm long, 4-9 principal veins per side

The only oak native to British Columbia

Tree uncommon in Canada, occurring in Ontario, east of Lake Superior and north of Lake Erie, in open, disturbed habitats; leaves lobed with slender tips, constricted toward the base; twigs reddish-brown

Leaves with 5-7 lobes, tip slender, notches U-shaped; cup shallow

Leaves with 7-9 lobes, tip slender, notches V-shaped; cup hairless

Trees occurring in a few locations in southern Ontario, north of Lake Erie, on lowlands and along streams, on poorly drained, heavy soils; leaves with 7-11 lobes, slender tip and rounded base; cup slightly hairy

Leaves lobed, lower surface hairy; acorns on long stalks

Leaves lobed, lower surface hairless; fringeless cup enclosing one-quarter of the nut