Home Forum Resources Shop Journey Log Back to map


Lewis and Clark
SHOWING RECORD: 39 of 50   Mountain Hemlock
PreviousNextJournals and Maps
image: Mountain Hemlock
Photograph by Gary Braasch/Corbis
Mountain Hemlock

Tsuga mertensiana

First Noted by Expedition
February 5, 1806, at Fort Clatsop, Oregon.

Tree with tapering trunk, conical crown of slender horizontal or drooping branches, and very slender, curved, drooping leader; a prostrate shrub at timberline. Needles evergreen. Height: 30-100 ft (9-30 m). Diameter: 1-3 ft (0.3-0.9 m).

Moist, coarse or rocky soils, from sheltered valleys to exposed ridges; with firs and in mixed coniferous forests.

Southern Alaska southeast along Pacific Coast to British Columbia and in mountains to central California; also southeastern British Columbia south in Rocky Mountains to northern Idaho and northeastern Oregon.

Mountain hemlock is a characteristic species of high mountains, varying greatly in size from a large tree at low altitudes to a dwarf, creeping shrub at the timberline.

Species information from enature.com

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

Blue Huckleberry
Edible Thistle
Evergreen Huckleberry
Grand Fir
Lyall's Nettle
Mountain Hemlock
Oregon Crab Apple
Oregon Wood Sorrel
Pacific Blackberry
Seashore Lupine