Weed Photos: Courtesy of Dr. Lambert McCarty. Clemson University. Clemson, SC.
Creeping woodsorrel is similar to yellow woodsorrel (OxalisStricta), but is a creeping summer perennial. The leaves of creeping woodsorrel are deeply lobed, heart shaped, and may be green to reddish purple. Creeping woodsorrel contains a slender taproot, and roots at nodes along slightly hairy stems. The flowers of oxalis corniculata are yellow, contain 5 petals, and form in clusters of 1 - 5 at the end of slender stems. Creeping woodsorrel spreads by seeds. Creeping woodsorrel is found in eastern North America, to North Dakota and Colorado.
3: June 4: June 5: May 6: April-May
7: March 8: March 9: February
Creeping woodsorrel may be removed by hand when plants are young. Dense, vigorous cool-season turf areas will resist infestation. Follow good turf management practices including disease and insect control and proper fertilization.
For optimum control, make your post-emergence herbicide application to plants that are actively growing and in the seedling to flower stage of growth.