The Whitebark Pine Project

Raising awareness about Whitebark Pine (Pinus albicaulis) and contributing data to further our understanding of an imperiled ecosystem.

Whitebark Pine

Whitebark pine (Pinus albicaulis), a high-elevation tree species found across western North America, was proposed by the U.S. Fish and Wildlife Service in December 2020 as a threatened species under the Endangered Species Act of 1973 (Act). The proposal to list whitebark pine was published in the National Register here: Endangered and Threatened Wildlife and Plants; Threatened Species Status for Pinus albicaulis (Whitebark Pine) With Section 4(d) Rule.

How you can help

Two ways that you can help are becoming a member and donating to the Whitebark Pine Ecosystem Foundation, and joining and contributing observations and identifications to the Whitebark Pine iNaturalist Project. See below for additional details, including:

Best practices for documenting whitebark pine
Best practices for uploading observations to iNaturalist
Representative photos of whitebark pine
[COMING SOON!] An identification guide to the 5 needle pines of western North America

Whitebark Pine Ecosystem Foundation

The Whitebark Pine Ecosystem Foundation (WPEF) is a non-profit, science-based organization working to restore and preserve the whitebark pine and to educate the public on its valuable ecosystem.

Whitebark Pine iNaturalist Project

Whitebark pine at Cutthroat Pass, North Cascades, WA.

This is a citizen-science project to 1) raise awareness about whitebark pine, and 2) contribute data to ongoing and future whitebark pine research.

Contribute observations and provide identifications on iNaturalist here: https://www.inaturalist.org/projects/the-whitebark-pine-project

We need people to contribute observations, make identifications, and add data to existing observations. If you really want to make your observations count, follow the best practices below.

Best Practices

Documenting Observations

When making observations of whitebark pine in the field please:

Needles: Make note and take pictures of the number of needles per fascicle, i.e., the bundles of needles on the branches (Figure 1),
Cones: Look for cones in the tree or cones or cones fragments on the ground around the tree and take pictures (Figures 2-6), and
Pests/Damage/Disease: Take pictures and make note of any recent damage to the tree, or signs of disease or pests (Figures 7-9).
Entire tree: Take photos of the entire tree.
Branches: Take closeup photos of the branches.
Trunk: Take a photos of the trunk of the tree.
Bark: Take closeup photos of the bark.

Figure 1. A photo clearly showing 5 needles per fascicle.

Uploading Observations to iNaturalist

When uploading observations of whitebark pine to iNaturalist please upload all the photos described above, and add the following Observation Fields:

Needles/fascicle (integer): enter the number of needles per fascicle.
Cones shown? (text): Are there cones or cone fragments shown in the photos? Enter yes, no, possibly
Pest/disease (text): Was there evidence of pests or disease affecting the whitebark pine under observation? If no then enter “none”; if you aren’t sure enter “unknown”, and if yes then enter the common name of the pest or disease (e.g., mountain pine beetle, white pine blister rust, top kill).

**Photos on this page are by Aaron Wells unless otherwise noted.