Home Forum Resources Shop Journey Log Back to map



intro1234567891011121314151617181920212223


Timeline
Lewis and Clark
SHOWING RECORD: 20 of 45   White Alder
PreviousNextJournals and Maps
 
White Alder

Alnus rhombifolia




First Noted by Expedition
November 6, 1805, along the Cowlitz River, Washington.
 

Description
Medium to large tree with tall, straight trunk and open, rounded crown; showy in winter with long, golden-colored male catkins hanging from slender, leafless twigs. Height: 70 ft (21 m). Diameter: 2 ft (0.6 m).
 

Habitat
With chaparral and Ponderosa pine in foothill woodlands.
 

Range
Western Idaho and Washington south in mountains to western Nevada and southern California; at 100-8,000 ft (30-2,438 m); generally below 5,000 ft (1,524 m).
 

Note
White alder, named for its pale green foliage, is the only alder native in southern California. Limited to permanent streams, it is a good indicator of water.

Species information from enature.com
ADVERTISEMENT

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



ADVERTISEMENT
Netleaf Hackberry
Oregon Ash
Oregon Boxleaf
Pacific Madrone
Peach-Leaved Willow
Prickly-Pear Cactus
Slender Willow
Vine Maple
White Alder
Cayuse Indians
Chinook Indians