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Practical Weed Science for the Field Scout: Corn and Soybean
Foxtail, green (Setaria viridis)
Summer annual grass
A clump-forming summer annual with a seedhead that resembles a fox's tail. Seedlings have leaves that are rolled in the bud and without hairs except occasionally along the leaf sheath margins. The ligule is a row of hairs about 0.5 mm long on small seedlings; therefore this is rarely seen by the casual observer. Mature plants have leaves that may reach 12 inches in length and 5 to 15 mm in width, and are most often without hairs or only sparsely hairy. The leaf sheath is mostly without hairs, except along the margin near the mouth.
IPM1007, revised November 2009
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