Umbilicaria hyperborea, commonly known as blistered rock tripe,[2] is a species of foliose lichen in the family Umbilicariaceae.

Closely related species include U. polyphylla, U. iberica, and U. arctica.

[5] The thallus of Umbilicaria hyperborea ranges in colour from medium- to dark-brown, with texture of the upper surface more or less smooth or warty.

The disc-shaped apothecia are flat to convex and have multiple complex ridges.

[7] Umbilicaria hyperborea has a very slow growth rate; in a study undertaken in Greenland, it was measured as 0.3–0.4 mm per year over the time period 1933–1970.