This is a fairly common species in the PNW that was formerly considered a variety of P. leptocephalus, but is now understood to be a separate species. It is found on decaying hardwood logs or branches and rarely on conifer. Its flesh is thin and leathery, rendering it inedible. The color is is usually pale gray and often concentrically zoned. The caps center is depressed or sunken. Caps are frequently zonate. Margins are incurved but may flatten or become uplifted in age. The pore surface is white and drops white spores. Pores are smallish and round. Stipes are up to 3 inches tall and 2/3 of an inch across. They are dry and smooth and darken to blackish from the base upward over time. The odor is indistinct and the taste mild. They are too tough to be considered edible. The caps emerge in the fall but may persist for many seasons thereafter.