Thallus rosette-forming to irregularly spreading, to 10 cm diam., loosely attached, corticolous. Lobes 3-6 mm long and 2-5 mm wide, thin, smooth to irregularly wrinkled or weakly plicate or pitted, often distinctly faveolate, with raised, entire, often sinuous margins. Upper surface yellow-orange or greenish-yellow to pale greenish-grey in shaded situations, matt or shining, smooth to ± faveolate-plicate. Lower surface pale yellowish or whitish, rhizinate. Rhizines sparse, short, simple, white. Apothecia sessile, ± central, lecanorine, to 5 mm diam., margins thin, persistent, concolorous with thallus, often inflexed, disc plane or subconcave, yellow-orange, matt. Ascospores ellipsoid, 11-26 × 6-9 µm.