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Practical Weed Science for the Field Scout: Corn and Soybean
Sandbur (Cenchrus spp.)
Summer annual grass
An annual grass with conspicuous burs along the seedhead that is primarily found in sandy areas of fields throughout the southeastern United States. Leaves are rolled in the shoot and are without auricles. Leaf blades may reach 8 inches in length and 6 mm in width and are rough above but without hairs below. The ligule is a fringe of hairs that is approximately 1 mm long. Sheaths may reach 20 inches in height and are without hairs and somewhat flattened in appearance. Seedheads consist of many round, spiny burs. Each bur is approximately 5 to 7 mm wide and contains two to four spikelets that are 4 to 5 mm long.
IPM1007, revised November 2009
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