âšī¸ Edibility Note
Due to its unknown edibility and potential toxicity, it is advised to avoid consumption. Always consult with an expert before foraging.
Description
Gymnopilus junonius is a large, robust mushroom characterized by its yellow to orange-brown cap, which can reach up to 15 cm in diameter. The gills are closely spaced and turn a rusty color as the spores mature, and the stem is thick and often has a bulbous base.
Key Identification Features
Field marks recorded for this species. Work through all of them, not just one:
- Cap: Convex to flat, yellow to orange-brown, with a smooth surface.
- Gills: Close, yellow to rusty brown, with a distinctive spore print.
- Stem: Thick, sturdy, and often bulbous at the base.
- Spore print: Rusty brown.
- Odor: Strong, often described as unpleasant.
Habitat & Distribution
Habitat: Typically found growing on decaying wood, particularly hardwoods, and sometimes in grassy areas.
Region: Widespread in temperate regions, including North America, Europe, and parts of Asia.
Seasonality
Fruits from late summer to fall.
Typical months: Aug-Nov
Common Lookalikes
Always verify identification to avoid these similar species:
- Gymnopilus underwoodii (unknown) - Generally smaller and has a more pronounced umbo.
- Pholiota squarrosa (inedible) - Has scaly cap and different gill attachment.
- Cortinarius species (various) - Often have a more pronounced veil and different coloration.
Related Species
Browse all species in the Mushroom Database â
Track Your Giant Gymnopilus Finds
Pin the patch before you leave it. Coordinates, photos, and field notes stay AES-encrypted on your device â and the offline lookalike guide travels with you into the deep woods.
Download Mushroom TrackerDisclaimer: This guide is for educational purposes only. Never consume a wild mushroom unless you are 100% certain of its identification.