The Southern Idaho
Association (SIMA)

Providing educational forays into Southern and Central Idaho’s mushrooms and fungi since 1976.

New cluster of plurotus populinus or oyster mushroom growing on cottonwood.


Learn how to identify mushrooms and fungi of all kinds with an entertaining group of amateur and professional mycologists, mycophagists and general mushroom enthusiasts (okay, mushroom nerds ;-).

We are affiliated with the North American Mycological Association (NAMA).

logo of the southern idaho mycological association.


Which books and websites do we recommend for learning?

What’s this mushroom?

When are the morels out?

Find a list of our favorite resources and answers to some of our most frequently asked questions here.

Woman holding display of mushrooms at the 2019 southern idaho mycological association foray.


Looking for some hands-on experience finding and identifying mushrooms? SIMA organizes multiple forays and field trips throughout the year, weather-permitting.

Since our inception, we’ve cataloged over 2,000 species of mushrooms in Idaho and eastern Oregon. Come help us find a few more!

Some events and meetings have been cancelled or rescheduled due to Covid-19. Please check individual event pages and/or our Facebook page for the latest information.