Trident Maple, Three-toothed Maple             A-ser ber-jer-ee-A-num

• Deciduous tree, 20-35⁺ ft (6-11⁺ m) high, oval to rounded outline.  Bark attractive, gray-brown with orange; exfoliating, scaly.  Leaves opposite, simple, 4-9 cm long and wide, rounded or wedge-shaped at base, 3-lobed, 3 major veins, lobes are triangular and point forward, margin entire or slightly serrate, very lustrous dark green above, petiole about as long as the bade; fall color yellow, orange and red.  Small greenish yellow flowers are hardly noticeable.   Fruit (samara) about 2 cm long wings, parallel.
• Sun. Well-drained acid soil.  Drought resistant.
• Hardy to USDA Zone 5      Native to eastern China and Korea.   Introduced into England in 1896.  There are several cultivars, mostly of Japanese origin and not generally available (see van Gelderen and van Gelderen, 1999).  A somewhat recent U.S. introduction is Streetwise® (or Street Wise®)
• Frequently used in bonsai.
• buergerianum: after H. Buerger (1804-1858), a plant hunter in Japan for the Dutch government.
• Portland, Oregon: Hoyt Arboretum
• Corvallis: west side of tennis courts at Cloverland Park, Garfield Ave. & 29th St.