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.
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 grows on open, steep, rocky talus slopes and rock ledges within subalpine conifer forests, and in alpine fell-fields. Photo by James Morefield.
This species often grows alone, without other companion species. Photo by James Morefield.