Type: Broadleaf annual Size: 3 to 4 inches 6″ in diameter. Leaves are approximately ½ to 1½ inches long and ¼ to ½ inch wide. Where it grows: grows flat along the ground Appearance: The seed head of Sandbur is a spike of tiny spurs. Control: Apply a preemergent herbicide before the weed seeds germinate Note: Healthy lawn grasses can outcompete Burweed for light, water, and nutrients and reduce the level of infestation. The sharp-tipped spiny burs of this weed can cause minor irritation to the skin. Key identification characteristics of lawn Burweed are 1) opposite, sparsely hairy leaves that are divided into numerous segments, or lobes, b) small, inconspicuous flowers, and c) spine-tipped burs that are found in the leaf axils (junction of leaf and stem). Lawn Burweed attains an overall diameter of up to 6 inches and a height of about 3 to 4 inches. It is commonly found in the Coastal Plain and Piedmont regions of Georgia.