Control the weeds in your lawn without harming the grass. Roundup for Lawn Optima Concentrate is for established lawns, and will help control most of the common broad-leaved lawn weeds. No glyphosate*. Kills weeds, not lawns. Kills dandelions, daisies, and clover. * THIS CLAIM IS PROVIDED TO HELP DISTINGUISH FROM OTHER FORMULAS THAT MAY CONTAIN GLYPHOSATE.