Gymnopilus luteus is a member of the Gymnopilus junonius (also known as “Gymnopilus spectabilis”) species group. Like the other species in the group it grows on wood and has a medium sized or large cap, a partial veil that usually leaves a ring or ring zone on the stem, an orange to orange-brown spore print, and a bitter taste. Unlike the others, however, it is apparently limited to the hardwood forests of eastern North America, and features yellow colors as well as a slender stem.

Saprobic on the dead wood hardwoods and perhaps on the wood of conifers or growing alone, gregariously, or in small clusters; summer and fall.

The Gills are Broadly attached to the stem; close; yellow, becoming rusty with maturity.

The Stem is usually about 2-8 cm long; up to 1.5 cm thick and club-shaped when young. It’s not typically swollen in the middle at maturity. Its usually the same color as the cap but developing rusty stains when handled or with age. Like most active gyms it has fine hair and usually with a fragile ring or ring zone near the apex. This is a very beautiful Mushroom.

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