Trees, insects and diseases of Canada's forests
Look at the figures and select the one that seems to match your tree.
You can always go back to the previous page.
Leaves alternate, simple; edges toothed
Twigs smooth; leaves toothed, oval, lower surface glandulous; fruits borne in persistent catkins
Twigs with rough thorns; many-seeded apple-like fruits
Twigs smooth; leaves heart-shaped, single-toothed, base asymmetrical; flowers and fruits borne on long joined stalks, with a long and distinctive membraneous bract
Twigs smooth; leaves single-toothed, base symmetrical; bark smooth, light bluish-gray
Twigs smooth; leaves double-toothed; leaves and twigs often glandulous
Twigs with or without rough thorns; flowers showy, with 5 petals; fruits containing a single flattened stone
Twigs smooth; leaves double-toothed, base broadly asymmetrical
Twigs with smooth thorns
Twigs smooth; leaves double-toothed, base symmetrical, oval to almost round, irregular in shape
Twigs smooth; leaves oval, single-toothed, with lateral veins that do not reach each tooth, twice as wide as long
Twigs smooth; leaves oval, single-toothed, with lateral veins that do not reach every tooth; bark smooth and gray; fruits berry-like
Twigs smooth; leaves narrow, single-toothed, with lateral veins that do not reach each tooth; buds covered by a single scale