Windrower (1) of petite straw, adaptable to a tractor vehicle, designed to transform a pile of petite straw in a swath. It comprises : - an element extending along a vertical plane, perpendicular to the direction of displacement of the tractor vehicle, and intended to come into contact with the anvil, a plurality of projecting elements in front of the vertical plane, and distributed in that - latter transversely and vertically, and ； - the drive means of the projecting elements, designed to be able to move the latter transversely in the direction of the side where it must be created the windrow.
