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Western Balsam-poplar Populus trichocarpa (Salicaceae) HEIGHT to 35m. Fast-growing (up to 2m per year), columnar when mature with a tapering crown and trunk. BARK Dark-grey bark with shallow grooves and fissures. SHOOTS Stout. LEAVES Pointed, tapering, glossy-green above and white below; turn yellow in autumn. REPRODUCTIVE PARTS Catkins, produced in April, slender and pendulous: males reddish-brown and females greenish. Seeds are hairy and produced abundantly. STATUS AND DISTRIBUTION Native of Pacific coast of N America, sometimes planted here.