Some simple ZBrush grasses in low poly version (for distance) and high poly version. Windblown. You can make several combinations and restricted rotations (say 0-160º), and/or rotated base object, for different effects.
They are kind of pointy, but there's also an opacity mask.
Files won't all fit in one post, so will be continued hereafter. Put all in one folder.
For these two tests I sized the instances 0.5-1X and rotated both pops max 160º. Instance distance was 1.25m. If you reduce the grasses size to more lawngrass-size, that should be decreased as well, of course.
Enjoy!