Basidiocarps (fruit bodies) are agaricoid (gilled mushrooms) and are formed in large clusters on the ground.

In the UK, Lyophyllum decastes has the recommended English name of clustered domecap;[1] in North America it is known as the fried chicken mushroom.

[5] Lyophyllum semitale and Pluteus petasatus are similar in appearance,[5] as is L. fumosum; it and L. loricatum are sometimes grouped with L. decastes as a species complex, lacking distinct, differentiating, morphological features.

It is prolific in summer and fall until spring on the U.S. West Coast and is widely distributed in North America.

Lyophyllum decastes is commercially cultivated in Japan, where it is known as hatake shimeji,[9] and in China, where it is known as luronggu.