This set of ten Photoshop brushes is perfect for adding grassy accents to your work. You can design everything from scrubby dry patches of grass to lush meadows thanks to the multitude of types available. A bonus suggestion from the author is that they may also be used to produce beautiful fur if the colors are changed.
s1088 is the name of the designer.
Usage: Personal and commercial use are both free.
Get it at DeviantArt.