The shell is generally square and somewhat inflated. Color is yellowish-green to light brown and often has several green rays running vertically from the beak. The posterior ridge has several bumps and small broken ridges. Nacre is white. The shell is rounded anteriorly, and concave posteriorly along its margin.
Color is usually yellow to light brown with dark green triangular markings.
The shell has 3 to 5 large bumps on the posterior half surrounded by smaller bumps. The anterior is usually smooth and free of bumps. Nacre is white. Compare to other Quadrula species. The shell is thick and elongate.