Tree with long, straight trunk and usually narrow, dense crown. Leaves generally 5-12 in (13-30 cm) long. Height: 80 ft (24 m). Diameter: 2 ft (0.6 m).
Wet soils along streams and in canyons; with red alder, black cottonwood, willows, and Oregon white oak.
Western Washington, western Oregon, and south in Coast Ranges and Sierra Nevada to central California; to 5,500 ft (1,676 m).
Oregon ash is the only ash native to the Northwest.
