Home Forum Resources Shop Journey Log Back to map



intro1234567891011121314151617181920212223


Timeline
Lewis and Clark
SHOWING RECORD: 31 of 47   Red Alder
PreviousNextJournals and Maps
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.
 

Description
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.
 

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

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

Note
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
ADVERTISEMENT

Subscribe Online
Your subscriptions help National Geographic conservation efforts worldwide >>



ADVERTISEMENT
Linear-Leaved Phacelia
Maiden Blue-Eyed Mary
Menzies' Larkspur
Narrowleaf Mountain-Trumpet
Nuttall's Toothwort
Oregon White Oak
Pacific Dogwood
Pestle Parsnip
Red Alder
Red-Flowering Currant
Salmonberry