Fruiting body: 2-8 x 2-4 cm, shell or ear-shaped, with the back grown on the substrate, without stem or only with short stem, upper side is flat to slightly wrinkled, wavy, finely downy, red brown to olive brown, and blackish, edge is smooth and sharp, the lower side is the hymenium varicose, wrinkled by spores frosted, tough, elastic, in dry hard like a horn, in contact with water, it can be restored as it was before.
Hymenophore: is the inside and is wrinkled and brown.
Spore print: white-hyalin
Spore: cylindric, weak allantoid, partially with drops, 17-24 x 6-8 μm
Stem: very short or without stem.
Flesh: tough, elastic, without taste and odor.
Habitat: solitary, gregarious to clustered, mostly imbricate on living, injured or dead parts of black elder or filed maple, grows all year round.