Agrocybe rivulosa is a brown-spored, gilled decomposer that grows in soil and has been reported east of the Rocky Mountains, Europe, South America, Africa, and Australia.

It has a wrinkled cap top surface that is mostly white becoming tan towards the center.

The stem is relatively long, has a ring (annulus), and has an abrupt bulb at the base with white "roots" (pseudorhizomorphs).

The gills are slightly attached to the stem and begin light-colored and turn more brown with maturity.