Mushroom Observer

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Mushroom Observer
Mushroom Observer screenshot.PNG
Photograph of a Boletus edulis observation recorded on Mushroom Observer
Web address
Commercial? no
Registration Optional
Available in English, French, German, Greek, Italian, Polish, Portuguese, Russian and Spanish
Content license
Creative Commons Attribution/Share-Alike with or without "Noncommercial" restriction
Owner Nathan Wilson
Launched 2006

Mushroom Observer is a collaborative amateur mycology website started by Nathan Wilson in 2006.[1] Its purpose is to "record observations about mushrooms, help people identify mushrooms they aren’t familiar with, and expand the community around the scientific exploration of mushrooms".[2]

The community of about 4,000 registered users collaborates on identifying the submitted mushroom images, assigning their scientific names by means of a weighted voting process.

All photographs are subject to a Creative Commons license that allows their reuse by others without the need for remuneration or special permission, subject to the terms of the license.[2]


As of 2013, the website contains about 126,000 user-submitted mushroom observations illustrated by 335,000 photographs.[3] In 2010, the website contained about 53,000 user-submitted mushroom observations illustrated by 101,000 photographs; up from 7,250 observations and 12,800 photographs in 2008.[1]


  1. ^ a b Wood, Michael (Summer 2008). "WebWatch: Observing Mushrooms" (PDF). Fungi Magazine 1 (2). Retrieved 8 October 2010.  Reproduced on the MykoWeb website.
  2. ^ a b "Introduction". Mushroom Observer. Retrieved 8 October 2010. 
  3. ^ "Site Statistics". Mushroom Observer. Retrieved 22 June 2013.