One of the most potent psilocybin-containing mushrooms in the world. Produces exceptionally high levels of psilocybin and psilocin.
Grows in sandy coastal soils, often among dune grasses and driftwood in the Pacific Northwest.
- Discovered and popularized in the 1990s; no ancient traditional record
Known for its caramel-colored cap and extremely high alkaloid content (sometimes exceeding 2% combined indoles by dry weight).
Late autumn coastal-dune fruiter
- Stamets 1996
- Guzmán 2000



