Black maple

This 20 to 30 m tall tree has blackish-grey bark that is usually more deeply furrowed than that of sugar maple. Its leaves have 3 to 5 short lobes with a 10 to 15 cm long stalk. The tips of the lobes are drooping and wilted looking. The underside of the leaves is covered with dense hairs. The tiny flowers do not have any petals. The fruit is a pair of winged keys joined at the base that resembles that of sugar maple. Each key is 1 to 2.5 cm long.