Vascular Plants - Pinaceae - Larix:
Larix lyallii
Page Authors: Don Knoke, David Giblin
subalpine larch, alpine larch, Lyall's larch, tamarack 
Blooms: June-July (cone production)
Habit: tree
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.

Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to the central Cascades and Wenatchee Mountains in Washington, east to Montana and Alberta.
Habitat: Generally near timberline, preferring north-facing slopes.
Species Description:

General: A small, often misshapen tree up to 20 m. tall.
Bark: Bark thin, deeply furrowed, flaking into reddish-brown scales; young twigs closely white- or yellowish-woolly for up to 3 years.
Leaves: Needles in false whorles of 30-40 per spur, light bluish-green, 2.5-3.5 cm. long, 4-angled, deciduous.
Cones: Staminate cones single on short, lateral, naked branches, yellow, 1.5 cm. long; ovulate cones reddish-yellow to purplish-green, 3.5-4.5 cm. long, the scales somewhat woolly on the lower surface, exceeded by the dark purple to greenish-red bracts; the two cones often adjacent.
Accepted Name:
Larix lyallii Parl.
Synonyms:
(none)

Treated in Flora of the PNW as:
Larix lyallii
Additional Resources:

PNW Herbaria Specimens: View list of all Larix lyallii specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Larix lyallii specimens in the WTU Herbarium database.

Washington Flora Checklist: Larix lyallii treatment.

E-Flora BC: Larix lyallii atlas page.

CalPhotos: Larix lyallii images.

USDA Plants Database: Larix lyallii.
Additional photographs of Larix lyallii:
(click on a thumbnail to view larger photo)

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

H. Tim Gladwin, 1982

H. Tim Gladwin, 1982

H. Tim Gladwin, 1982

H. Tim Gladwin, 1982

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Al Dodson, 2006

Al Dodson, 2006

Clayton J. Antieau, 2008

Clayton J. Antieau, 2008

Clayton J. Antieau, 2008

Clayton J. Antieau, 2008

Clayton J. Antieau, 1986

Ben Legler, 2012

Ben Legler, 2012

Ben Legler, 2012

Ben Legler, 2012

Susan McDougall, 2006

Susan McDougall, 2006
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Washington Native Plant Society
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