University of Missouri Extension

IPM1007, Revised November 2009

Practical Weed Science for the Field Scout: Corn and Soybean

Woodsorrel, creeping (Oxalis corniculata)

Perennial broadleaf

Woodsorrel, creepingWoodsorrel, creeping
 

Woodsorrel, creepingAn erect, stoloniferous perennial that may mimic a summer annual in cooler climates. Leaves are alternate, occur on long petioles, and are divided into three heart-shaped leaflets. Leaf margins are fringed with hairs. Stems are green to pink, branched at the base and more prostrate than erect. Plants spread by stolons, which are aboveground, modified stems. Flowers occur in clusters that arise from long stalks at the leaf axils. Individual flowers consist of five yellow petals that are 4 to 9 mm long. The fruit is a long angular capsule that is cylindrical, pointed and sparsely hairy. Seeds disperse from capsules by explosively ejecting up to 13 feet.
 

IPM1007, revised November 2009

Wild thing
 

IPM1007 Practical Weed Science for the Field Scout: Corn and Soybean | University of Missouri Extension

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