Thallus large, rosette-forming to spreading, loosely to closely attached, lobate-foliose, free at margins, without a prothallus, 5-12(-20) cm diam. Lobes broad, 5-20 mm wide, coriaceous, margins rounded, sinuous often crisped, ascending, overlapping, conspicuously thickened. Upper surface uneven, matt centrally, coarsely scabrid near margins and regularly marginally tomentose, tomentum white, arachnoid, pubescent, plant bright green when wet, pale greenish-grey or pale greenish-fawn when dry. Medulla white. Lower surface whitish, naked or very finely tomentose, striate, with occasional tufts of pale buff, squarrose rhizines centrally. Cephalodia frequent to moderate, small, globose, ± granular to subplacodioid, 1.3 mm diam., pale whitish-grey, laminal, densely wrinkled-plicate. Apothecia sessile, laminal, often crowded centrally 1-5 mm diam., margins concolorous with thallus, thick, crenulate-striate, disc plane or subconcave, chestnut-brown to dark red-brown, smooth, matt, epruinose, not gyrose-contorted, without fissures or thalline lobules, thalline exciple wrinkled-verrucose. Ascospores ellipsoid, 12-16 × 8-9 µm.