Gymnopus dryophilus

Physical Characteristics

Cap: 1-7 cm in diameter, convex to broadly convex or flat, sometimes with a slight central depression or umbo; color varies from reddish-brown to cinnamon-brown, tan, or buff, fading to paler shades with age, often with a somewhat oily or moist appearance. Gills: attached to notched, crowded, white to cream-colored. Stem: 2-8 cm long, 2-8 mm thick, equal or tapering slightly upwards, hollow or stuffed, pale buff to reddish-brown, often white at the base, sometimes longitudinally grooved. Spore print: white.

Habitat & Growing Conditions

Saprobic; grows on decaying hardwood and conifer wood, often appearing terrestrial as it grows from buried wood. Found in forests, parks, and disturbed areas, often gregariously or in clusters.

Season & Fruiting Time

Spring through fall, sometimes into early winter in milder climates.

Similar Looking Species

Some Marasmius species, though Gymnopus dryophilus generally has more robust stems and a less leathery cap. Collybia peronata (Gingerbread Collybia) has a hairy stem base and a strong peppery taste. Rhodocollybia butyracea (Buttery Collybia) has a greasy cap and stem and a noticeably buttery texture. Gymnopus spongiosus can appear similar but has a spongy stem base and grows specifically in association with pine needles.

Ecological Role

Decomposer (saprobic), breaking down dead woody material and returning nutrients to the soil. Important in forest ecosystems for nutrient cycling.

Identified on: 10/1/2025

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