Yellow oyster mushrooms are small to medium in size with caps averaging 2-6 centimetres in diameter and are attached to a short or nonexistent stem. The thin, dry, smooth caps are daffodil yellow, semi-circular, and look like small petals clustered and layered into a small bouquet. When young, the caps are flat, and with age, they begin to curl and become convex with wavy edges. Underneath the caps, there are many soft, short, white gills that connect to an ivory white, small stem. Yellow oyster mushrooms have a fruity aroma reminiscent of aged red wine and are velvety, crisp, and chewy. When raw, Yellow oyster mushrooms can be somewhat bitter.