On moss on rotting hardwood log, probably Alnus (Alder) or Populus trichocarpa (Black Cottonwood).
There were plenty of these in the vicinity, all on rotting logs or buried debris.

Species Lists



Proposed Names

-10% (2)
Used references: Kuo, M. (2008, February). Coprinellus micaceus. Retrieved from the MushroomExpert.Com Web site:;
Trudell & Ammirati, Mushrooms of the Pacific Northwest (Timber Press 2009)

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
Coprinellus flocculosus in PNW?
By: Joseph D. Cohen (Joe Cohen)
2014-03-31 22:43:38 CDT (-0400)

Do you know of any literature discussing whether the range of Coprinellus flocculosus includes the Pacific Northwest?
— Joe

Created: 2014-03-30 21:21:57 CDT (-0400)
Last modified: 2018-06-26 09:09:02 CDT (-0400)
Viewed: 60 times, last viewed: 2020-05-29 07:59:20 CDT (-0400)
Show Log