Page authors: Don Knoke, David Giblin
Pinus albicaulis
white-bark pine

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana and Wyoming.

Habitat: Generally near timberline, preferring south-facing slopes.

Cones: June-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Review Group 1 in Washington (WANHP)

Pollination: Wind


Usually a dwarf and contorted alpine tree 5-15 m. tall.


Bark thin with whitish scales that are brownish underneath; young twigs pubescent.


Leaves in bundles of 5, yellow-green, 4-7 cm. long, somewhat curved, on spur branches that are ultimately deciduous with the needles.


Staminate cones numerous, red, crowded at the base of shoots of the current season; ovulate cones ovoid, deep red to purple, 5-8 cm. long, single or in small clusters toward the tip of the branches of the current season, tending to remain closed, rarely falling from the tree intact; scales thickened, thinner only toward the upturned point.

Accepted Name:
Pinus albicaulis Engelm.
Publication: Trans. Acad. Sci. St. Louis. 2: 209. 1863.

Synonyms & Misapplications:
Apinus albicaulis (Engelm.) Rydb.
Additional Resources:

PNW Herbaria: Specimen records of Pinus albicaulis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Pinus albicaulis checklist entry.

OregonFlora: Pinus albicaulis information.

E-Flora BC: Pinus albicaulis atlas page.

CalPhotos: Pinus albicaulis photos.

USDA Plants: Pinus albicaulis information.

54 photographs:
Group by