Revised June 2007
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Contents
Summer annual broadleaf
Biennial broadleaf
Perennial broadleaf
Summer annual grass
Winter annual grass
Perennial grass
Plants resembling grasses
Herbicides
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Practical Weed Science for the Field Scout: Corn and Soybean
Summer annual broadleaf
A prostrate, fleshy, succulent summer annual that is able to tolerate poor, compacted soils and drought. Seedlings have cotyledons that are oblong, succulent and without hairs. Young leaves are maroon on the lower surface, opposite with each succeeding pair 90 degrees from the preceding pair. Mature plants have leaves that are alternate or opposite, 1/4 to 1-1/4 inches long, rounded at apex and narrowed to the base. Leaves are thick, succulent and fleshy, with smooth margins. Stems are succulent, smooth, prostrate, much-branched, purplish red or green and 4 to 20 inches long. Flowers are yellow with five petals that open only when sunny.
IPM1007, revised June 2007