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U.S. Forest Service

Critically Imperiled Plant Profile (Not Listed or Proposed under the Endangered Species Act)

Mason’s skypilot. Mason’s skypilot has an unusual geographic distribution, with a small cluster in the mountains of northwest California, and a larger cluster several hundred miles to the southeast, in the Sweetwater, White, and Inyo Mountains. Photo by Dr. Dean Wm. Taylor, Jepson Herbarium.

Polemonium chartaceum range map. Polemonium chartaceum range map.

Polemonium chartaceum, Mason’s skypilot


  • Mining and grazing are potential threats

Conservation Status

National Forest and Grassland Occurrence

More Information

Mason’s skypilot. Occurrences in the Klamath Ranges of northwestern California may be taxonomically distinct from those in southeastern California and adjacent Nevada. Photo by Steve Matson.

Mason’s skypilot habitat. Mason’s skypilot grows on open, steep, rocky talus slopes and rock ledges within subalpine conifer forests, and in alpine fell-fields. Photo by James Morefield.

Mason’s skypilot. This species often grows alone, without other companion species. Photo by James Morefield.