Common Name: henbit
Species: Lamium amplexicaule L.
Bayer Code: LAMAM

Henbit is a common winter annual or biennial weed found in North Carolina waste areas. Stems grow primarily upright but can root at the lower nodes. It branches freely from the base stems which are green or purple in color. Leaves are rounded, coarsely toothed, hairy, and deeply veined. Flowers are in whorls in the axils of the upper leaves. Petals are purple and fused into a two-lipped tube. It is similar to purple deadnettle in appearance but its upper leaves do not have petioles, whereas purple deadnettle's do. Purple deadnettle also has upper leaves that are distinctly red- or purple-tinged. Purple deadnettle and henbit both have distinctive four-sided (square) stems, and flower in early spring.
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henbit roots, stems
henbit flowers
Growth Season winter annual weed OR biennial weed 
Growth Habit prostrate, spreadingstems are prostrate, but erect at the tip, square (four-sided), and often purple-tinged
Leaflet Number one 
Leaf Margin serrated/toothedbluntly toothed
Leaf Hairs upper/lower surfacedense on upper surface, along the veins on lower surface
Leaf/Leaflet Shape heart/kidney/spade 
Leaf Width 1/2 - 1 inch OR 1 - 2 inches 
Leaf Venation palmate 
Leaf Arrangement opposite 
Root Type fibrous 
Flower Color blue/purple