Pinus albicaulis
Whitebark pine, Whitebark Pine
(c) Matt Lavin, some rights reserved (CC BY) · licence
Family: Pinaceae · Type: Tree · Native
Pinus albicaulis (Whitebark pine) is a native California tree in the Pinaceae family, recognized by Co-occurs with several others in its genus at high elevations, distinguished by prostrate habit and animal-dispersed cones.
Whitebark pine is a California native shrub found in the Klamath Ranges, high Cascade Range, Sierra Nevada, Warner Mountains, and eastern Sierra Nevada in upper red-fir forest and subalpine areas at elevations of 2,000 to 3,700 meters. When exposed to harsh conditions, this pine produces a distinctive growth form with trunks that are generally prostrate or shrubby, creating a wind-deformed crown. Growing with five dark green needles per bundle, each 3 to 7 centimeters long and slightly curved, the pine develops a gray-white bark that remains smooth and thin as it matures. Its seed cones are distinctive, sessile and erect, measuring 3.5 to 9 centimeters long and colored purple-brown, with seeds typically dispersed by animals. The tree's unique subalpine adaptation allows it to thrive in challenging high-elevation environments, often forming twisted, wind-sculpted shapes that reflect its harsh mountain habitat.
Identification and appearance
Key characters: Co-occurs with several others in its genus at high elevations, distinguished by prostrate habit and animal-dispersed cones
Habitat and range
Habitat: Upper red-fir forest to timberline, especially subalpine forest
Elevation: 2000-3700 m
California counties: Mono, El Dorado, Modoc, Fresno, Inyo, Nevada, Mariposa, Madera, Shasta, Siskiyou, Tuolumne, Tulare, Trinity, San Bernardino, Placer, Tehama, Plumas, Lake, Glenn, Alpine, Amador, Lassen
Outside California: to British Columbia, Wyoming
How to tell it apart
vs Pseudotsuga: Pine needles come bundled in groups with papery sheaths; Douglas-fir needles attach individually to smooth twigs.; vs Abies: Pine needles come bundled in groups of 2-5; fir needles attach individually and directly to twigs.; vs Sequoia: Pine has bundled needles in groups of 2-5; redwood has individual scale-like or awl-shaped leaves on flat sprays.; vs Casuarina: Pine has true needles bundled in groups; Casuarina has jointed branchlets with whorls of tiny scale leaves.; vs Cedrus: Pine needles are bundled in tight clusters of 2-5; cedar needles grow in dense rosette-like clusters on short shoots.
Frequently asked questions
Is Pinus albicaulis native to California?
Yes. Pinus albicaulis is native to California (recorded as native).
Where in California does Pinus albicaulis grow?
Pinus albicaulis occurs in Mono, El Dorado, Modoc, Fresno, Inyo, Nevada, Mariposa, Madera and other counties, at elevations of 2000-3700 m.
What plant family does Pinus albicaulis belong to?
Pinus albicaulis is in the Pinaceae family, genus Pinus.
What habitat does Pinus albicaulis grow in?
Pinus albicaulis grows in Upper red-fir forest to timberline, especially subalpine forest.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · Index of California Plant Names · CalPhotos
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.