Sphenopholis obtusata (Michx.) Scribn.

Sphenopholis obtusata (Michx.) Scribn.. Sphenopholis obtusata is a species of grass known by the common names prairie wedgescale and prairie wedge grass. It is native to North America where it is widespread across southern Canada and the United States. It occurs in many types of habitat, including prairie, marshes, dunes, and disturbed areas.