A crop guide comprising one or more generally wedge-shaped guides configured to interact with a crop discharge stream as it is discharged from an agricultural mower having a counter-rotating disc cutterbar. The guides are positioned rearward from the cutterbar, with one guide being generally positioned on an axis centered between each pair of converging-rotation disc cutterheads where crop material flow is concentrated. Each guide is generally pyramidal in shape, having a pair of surfaces angled with respect to one another and forming a triangular pyramid form with respect to a third generally planar surface, typically the mower swathboard. The vertex of the pyramid is oriented upstream in the crop flow so that a portion of the crop flow is split by the angled surfaces and laterally dispersed. This dispersion of crop material produces a crop mat on the ground behind the mower having a more uniform thickness compared to that produced by a traditional mower using a counter-rotating rotary cutterbar.