White clover has a dark green color, it fixes its own nitrogen and can therefore, trhive in an unfertilized area. Clover can be an indicater of inadequate fertility in home lawns as it will outcompete grasses in low nitrogen situations. White clover has a white "watermark" on each of its three leaves. The white blossoms and the subsequent brown dead blossoms can become a nuisance in turf. White clover is a low-growing perennial that has creeping stems that root at the nodes. A cloe relative, alsike, is also frequently found as a problem in lawns, but it grows in weaker clumps than the clover.