An outer stalk divider for an attachment for harvesting row crop, in particular for a corn picker or corn header, includes a base body that extends in a traveling direction and a surface that extends in the traveling direction on an upper side, a hood, which is situated at the front on the base body as viewed in the traveling direction, and tapers in the traveling direction, and a cover element which, in the traveling direction, is situated behind the hood and on the upper side. The cover element extends at least partially along the surface of the base body, and is at least partially arched in design on an outer surface facing away from the surface. The cover element may be adjustable relative to the base body.