Thallus rosette-forming to irregularly spreading, often eroded or lacking in parts, to 6 cm diam., saxicolous. Lobes radiate, contiguous or partly imbricate and loosely attached, convex or subconvex, sparingly branched, c. 1 mm wide, margins crenate to subsinuous. Upper surface orange-red or red, smooth, matt, wrinkled or minutely faveolate or pitted centrally, without isidia, maculae, pseudocyphellae or soredia. Apothecia central, occasional, to 1.2 mm diam., disc red, margins persistent, rather thin, concolorous with thallus. Ascospores 10-13 × 6-8 µm.