Scientific Name: Potentilla recta
Also known as: Cinquefoil
Sulphur cinquefoil is an upright growing perennial. It can reach heights of 1 to 2-feet. The stems are stiff and usually number 1 to 3 per plant. The leaves alternate on the stems. Leaves are palmatey divided, usually with 5 leaflets. The leaflets are oblanceolate in shape with toothed margins. Sulphur cinquefoil has a fibrous root system. Sulphur cinquefoil reproduces by seed. It flowers in late spring to through early summer. The flowers are sulphur yellow in color with 5 heart shaped petals. Sulphur cinquefoil is found through the northeastern quarter of the United States.
Sulfur cinquefoil is found in dry fields, pastures, meadows, fence lines and along roadsides. Mowing the stems prior to the formation of flowers will prevent seed formation. Continual mowing will cause a depletion of food reserves as leaves are developed on upright stems.
Make your post-emergence herbicide application to cinquefoil that is actively growing and in the rosette to flower stage of growth.
Weed Photos: Courtesy of Dr. Lambert McCartey. Clemson University. Clemson, SC.