A stalk roll mountable to a header of an agricultural combine for rotation about a rotation axis during processing of plant stalks has an annular drum with detachable blades. The stack roll has a plurality of circumferentially spaced flutes extending in an axial direction of the rotation axis of the drum and projecting radially outwardly from the drum. The flutes define mounting surfaces along lengths of the flutes. A plurality of blades are attachable to the drum with multiple of the plurality of blades being attachable to the mounting surface of a common one of the flutes. Mounting hardware is configured to removably connect the blades to the mounting surfaces of the flutes.
