Trees, insects, mites, and diseases of Canada's forests

Pacific Coast tree; entire leaflets densely hairy on the lower surface

Leaflets stalkless, hairless

Leaflets coarsely toothed, on stalks; twigs with 4 conspicuous ridges

Leaflets on stalks, lightly toothed in the upper portion; twigs, leaves and flower stalks almost hairless

Leaflets prominently toothed, on stalks

Tree found in a few locations at the west end of Lake Erie; entire leaflets densely hairy on the lower surface

Leaflets on stalks, toothed in the upper portion; twigs and lower surface of leaves hairy

Leaflets completely hairless