Kills many types of broadleaf weeds (as listed), and it won't harm your lawn (when used as directed). With results in hours, it kills over 250 weeds down to the roots, including dandelion, clover, oxalis, chickweed, knotweed, plantain, henbit & spurge. The battery-powered Comfort Wand is quick and easy to use. For use on multiple lawn varieties, including Kentucky bluegrass, perennial ryegrass, fescues, common bermudagrass, hybrid bermudagrass, bahiagrass, bentgrass, buffalograss, centipedegrass, zoysiagrass, and St. Augustinegrass (except Floratam).