Common Name:
Hempnettle
Scientific Name:
Galeopsis tetrahit L.
Family:
Lamiaceae


Photo courtesy of
Marta Mueller, CES

Description: Hempnettle is an annual with single square stems growing 1 to 1.5 foot tall. The flowers are white, pink or purple and are grouped in clusters in axils of the upper leaves. Hempnettle is an introduced plant. It does not produce a stinging sensation when touched like Urtica species.

Control: Hempnettle is a prolific seeder. Annual plants require prevention of seed production and prevention of dispersal.