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Practical Weed Science for the Field Scout: Corn and Soybean
Henbit (Lamium amplexicaule)
Winter annual broadleaf
A very common winter annual weed with square stems and pink to purple flowers found throughout the United States. Seedlings have cotyledons that are oval and the base of the cotyledon is notched where it joins the petiole. Leaves are opposite, circular to heart shaped, with hairs on the upper leaf surfaces and along the veins of the lower surface. Leaf margins have rounded teeth. Lower leaves occur on petioles, while the upper leaves are without petioles. Stems root at lower nodes, are square in cross section and are covered with downward-pointing hairs. Flowers are pink to purple in color and fused into a tube.
IPM1007, revised November 2009
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