Larix lyallii / Alpine larch

Larix lyallii, first described in 1863 by Filippo Parlatore (1816–1877) is commonly known as Alpine larch, Mountain larch, tamarack as well as mélèze de Lyall in the French language. The species in named in honor of David Lyall, a Scottish surgeaon and naturalist who collected the first botanical specimens in 1858, as a member of the British Columbia Boundary Commission.


Description. Alpine larch is a deciduous coniferous species of tree that grows to heights of 80 feet (25 m) tall with a trunk up to 48 inches (120 cm) in diameter, measured at breast height with an irregular, sparse, conic crown.

  • Bark is thin, smooth, yellowish grey when young; becoming furrowed and flaking into red- to purple-brown scales with age.
  • Branches grow horizontally, occasionally pendulous, often gnarled and irregularly spaced. They persistent on trunk long after dead. Twigs are densely white- to yellow-tomentose for their first 2 to 3 years. Buds are tomentose as well with ciliate scale margins.
  • Needles are deciduous, growing in bundles of 30 to 40 on short shoots are 0.8 to 2.1 inches (20 - 35 mm) long and 0.16 to 0.24 inch (0.4- to 0.6 mm) thick, keeled abaxially, dual-angled adaxially, light green in color, turning golden yellow in autumn.
  • Seed cones are elliptic in shape, and upright oriented. They are red in color when young, turning purplish and then brown with age. The cones grow to 1 to 2 inches (2.5 - 5 cm) long and 0.44 to 0.76 inch (1.1 - 1.9 cm broad), on curved stalks. Each seed cone has 45 to 55 rounded seed scales, with erose margins and tomentose abaxial surfaces at maturity. Bracts are tipped by 0.16 to 0.2 inch (4 - 5 mm) awns that exceed mature scales by circa 0.24 inch (6 mm).
  • Seeds are yellow to purple in color with a 0.12 inch (3 mm) body and a 0.24 inch (6 mm) wing.
Natural range of <em>Larix lyallii </em>
Natural range of Larix lyallii

Distribution. This species is native to Canada: Alberta and British Columbia; and USA: Washington, Idaho and Montana at growing at elevation of 5,800 to 7,700 feet (1,800 - 2,400 m) above sea level. It is hardy to USDA Zone 3, cold hardiness limit between -40º and -30ºF (-39.9° and -34.4°C). It is adapted to growing on exposed northern subalpine slopes to the timberline, often with very rocky soils. It has very low shade tolerance and, due to its thin bark, low fire tolerance.

Attribution from: Parker, William H. 1993. Larix. Flora of North America Editorial Committee (eds.): Flora of North America North of Mexico, Vol. 2. Oxford University Press.

Alpine larch growing in nature at Slate Peak, Washington Cascades, USA
Alpine larch at Slate Peak, Washington, USA.
Larix lyallii — a closeup of mature seed cone. Take note of the woolliness of the buds, a good identification key.
Photo by C.J. Earle via
Larix lyallii — on of the largest know trees, at Larch lake wilderness, Washington, USA.
Photo by C.J. Earle, via


Mary Jeppesen

We are seeking to plant alpine larch on our property in central Idaho. Do you know where they can be purchased near us?? We live in Seattle. Thank you!

Maxwell Cohn

Mary, in all my years of collecting conifers and visiting nurseries, I have NEVER seen this species offered for sale. It is also one of the few western conifers that I have never seen growing in nature. I think your best success would be to get up into the high country in late fall and try to collect seeds or seedlings. Good luck!


I found two of these for sale at a local native nursery! Apparently that was the first time they ever got those trees (in the last 30 years or so). I bought one, but it died of root shock during summer, sadly. Later that year, I went and bought the second (only two were ever available), and plan to plant it this spring. Both are/were around the same height, just over 6 feet.


I am actually looking to buy some alpine larch as well. If you don't mind, what is the name of the nursery?


Sorry for the late reply, but Bosky Dell Natives in OR carries them at times, and is where I found them. I now have three subalpine larches (and one dead one), all three made it through last year's heat wave just fine. Unfortunately the very first one I got the year prior died from shock from planting too late. There seems to be some genetic differences too, because three of them (including the one that died) has/had the typical species longer needles, but one of them had distinctly shorter needles, about half the length of the others. It also didn't grow at all last year, whereas the others grew about 4".


Anyone on here know of anyone who collects the cones/seeds of this tree? Looking to get some.


In 2007, I purchased a Larix lyallii from Forestfarm. They are not currently offering it. Mine has not had any cones yet...