Turf Weeds was developed to provide weed management information and newsearch reports to turfgrass managers.  This site contains information on weed identification, chemical and cultural management of weeds, and current topics relevant to weed management in lawns and professional turf.  Turf Weeds was created  by Dr. Shawn Askew, Assistant Professor of Turfgrass Weed Science at Virginia Polytechnic Institute & State University.
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Plant Description:
Name:henbit
Scientific Name:Lamium amplexicaule
Family:Lamiaceae
Type:Broadleaf
Lifecycle:Winter Annual
Habit:Low growing winter weed with erect flowering stems that usually grow to about 10 to 25 cm tall. Stems are square and four-sided. Seedlings emerge in fall and early spring. Flower production may start in the fall but predominately occurs in spring and early summer. Plants completely die during hot summer months.
Leaves:Leaves are round or wider than long with numerous rounded teeth. Leaves lack stalks (petioles) and tend to project at right angles to the stem. The entire plant is usually sparsely hairy.
Leaf Arrangement:Opposite
Characteristics:Henbit has square stems and opposite leaves with rounded teeth. Plants produce characteristic mint-like flowers that are pink to purple.
Flower Seed Head:Flowers are pink to purple and arise from leaf axils near the tip of erect stems. Flower parts are united into a two lipped tube. The inside of the tube has purple splotches.
Seed Fruit:Seed are brown to light brown with lighter speckles. Seed are about 2 mm long and have two angular flat sides and a rounded back.
Where Found:A common weed of lawns and other turfgrass areas, plants are often noticed after flower production starts in the spring. Plants are also common in home gardens, nursery crops and other agricultural crops.

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