Distribution: Washington; Alaska, Oregon, California, across Rocky Mountain states and midwest, northern states to Maine; British Columbia, Alberta, Saskatchewan, Yukon, Northern Territories, Manitoba.
Habitat: In sun.
Substrate: Common on noncalcareous rock, esp. granitic rock, rarely on wood or bark.
Conservation Status: Not of concern
Thallus forming small cushions of flattened granules, sometimes with scattered yellow areoles; Apothecia 0.5-1.5 mm, crowded.