Trees, insects and diseases of Canada's forests

Stalk circular or flattened on the lower surface near the base of the blade, 7-10 cm long; leaves rounded, warty glands may be present at the base

Stalk circular or flattened on the lower surface near the base of the blade, 3-4 cm long; leaves ovate, lower surface whitish

Stalk laterally flattened near the base of the blade; leaves slightly triangular, similar colour on both surfaces, 20-25 rounded teeth per side; resinous buds

Stalk laterally flattened near the base of the blade; leaves broadly ovate to slightly triangular, lower surface paler; resinous buds

Stalk laterally flattened near the base of the blade; leaves narrow, ovate to slightly lance-shaped, tip long-pointed, lower surface paler; buds resinous

Stalk laterally flattened near the base of the blade, shorter than the blade; leaves oval with a few coarse teeth

Stalk circular or flattened on the lower surface near the base of the blade; leaves very narrow and lance-shaped

Stalk laterally flattened near the base of the blade; leaves slightly triangular, similar colour on both surfaces, 5-15 rounded teeth per side; buds covered with fine hairs

Stalk laterally flattened near the base of the blade, longer than the blade; leaves round