''Amanita prairiicola'' is a
fungus native to western North America from Arizona to Oregon and eastward to Kansas. One specimen has been described in Argentina, though it may have been imported with soil. Unlike most Amanita species, it doesn't appear to need a
mycorrhiza
A mycorrhiza (from Greek μύκης ', "fungus", and ῥίζα ', "root"; pl. mycorrhizae, mycorrhiza or mycorrhizas) is a symbiotic association between a fungus and a plant. The term mycorrhiza refers to the role of the fungus in the plant ...
l host and has been found in areas with no potential for a host, such as open cultivated fields and deserts.
The cap is white, six to twenty centimeters across, and usually flat to convex. The gills are cream to gold colored, free, crowded, and broad. The stalk is fifteen to twenty by two to four centimeters, and is also cream colored.
References
{{Taxonbar, from=Q48988850
prairiicola
Fungi of North America