[5] Conocybula cyanopus is a small saprotrophic mushroom with a conic to broadly convex cap which is smooth and colored ocher to cinnamon brown.
[5] The stem is smooth and fragile, whitish at the bottom and brownish at the top, 2–4 cm long, 1 to 1.5 mm thick, and is equal width for most of the length, often swelling at the base.
[7][8] It can be found in Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hungary, Latvia, the Netherlands, Norway, Poland, Russia, Sweden, Switzerland, Ukraine and the United States.
[3][9] Paul Stamets stated in 1996 that fruit bodies of Co. cyanopus have been found to contain anywhere from 0.33 to 1.01% (of dry weight) psilocybin, 0–0.007% psilocin, and 0.12–0.20% baeocystin.
[6] A more recent study found a collection of Co. cyanopus from Poland to contain 0.90±0.08% psilocybin, 0.17±0.01% psilocin, 0.16±0.01% baeocystin, 0.053±0.004% norbaeocystin and 0.011±0.0007% aeruginascin.
[3] Most mycologists advise against eating this mushroom because it is easy to mistake with deadly poisonous species (e.g. Pholiotina rugosa, Cortinarius gentilis or Galerina marginata.