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Edibility
Toxic
Lookalike Danger
5 / 5
Habitat
🪵 PNW mulched plantings
Season
Aug – Nov
"Olive-brown wavy cap with a translucent rim when wet. First described from University of Washington garden beds. Bluest of the Psilocybes when bruised — almost ink."
This species is found with or partners with the following hosts. Ectomycorrhizal hosts (green border) form a root-level partnership; ericoid / arbutoid shrubs (purple border) share the same mycorrhizal networks.

Landscape hardwood chip mulch — wine cap, bird’s nest fungi, dog-vomit slime mold. A great backyard cultivation substrate.
Olive-brown wavy cap with a translucent rim when wet, named for its small ovoid spores. First described from University of Washington garden beds in 1958. Contains psilocybin, psilocin, and especially high baeocystin — one of the bluest-bruising Psilocybes.
Mulched plantings and wood chips in the Pacific Northwest, especially urban gardens. Fall through early winter.

Min Soil Temp
45°F
Moisture Need
rain 0.5in 7d
Drought Tolerance
low
Elevation Range
200–8,000 ft
Same region, same habitat, same psychoactive profile. P. baeocystis is smaller with a more translucent rim.
DEADLY. Confirm bluing.
PNW mulched plantings
Photograph it and log your observation on iNaturalist. The community can help confirm your ID — always get confirmation before eating.