Large hop clover
Photo Credit: John D. Byrd, Mississippi State University, Bugwood.org
Black medic
What to look for: Low-growing habit; bright yellow flowers and leaf arrangement
Life cycle: Annual or perennial that germinates in spring or fall; reproduces by seed
Leaves: Fully divided into three egg-shaped leaflets with toothed edges; stalk of the middle leaflet is longer than those of lateral leaflets
Flowers: Bright yellow flowers bloom from April through July; 10 to 20 pealike flowers cluster to form a rounded flower head
Roots: Grows from a taproot
Look-alikes: Large hop clover, California burclover, yellow woodsorrel
Commonly found: Lawns stressed from compaction, heat and drought
Treatment recommendations for large hop clover and black medic
Apply a postemergence herbicide, such as Defendor® specialty herbicide, when the plants are young and actively growing. Black medic and clover species are particularly susceptible to products containing florasulam, the active ingredient in Defendor. Because Defendor works well in cooler temperatures, time your application in early spring or fall.
State restrictions on the sale and use of Defendor apply. Consult the label before purchase or use for full details.
Posted In: Weeds 101
Tagged: black medic, clover, Defendor
