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SHOWING RECORD: 31 of 47   Red Alder
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image: Red Alder
Photograph by Pat O'Hara/Corbis
Red Alder

Alnus rubra

First Noted by Expedition
March 26, 1806, along the Cowlitz River, Washington.

Graceful tree with straight trunk, pointed or rounded crown, and mottled, light gray to whitish, smooth bark. Height: 40-100 ft (12-30 m). Diameter: 2.5 ft (0.8 m), sometimes larger. Leaves 3-5 in (7.5-13 cm) long, 1.8-3 in (4.5-7.5 cm) wide; ovate to elliptical.

Moist soils including loam, gravel, sand, and clay, along streams and lower slopes; often in nearly pure stands.

Southeastern Alaska southeast to central California; also local in northern Idaho; to 2,500 ft (762 m).

The leading hardwood in the Pacific Northwest, red alder is used for pulpwood, furniture, cabinetwork, and tool handles. The common name describes the reddish-brown inner bark and heartwood.

Species information from enature.com

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