Deadnettle describes a series of plants belonging to the genus Lamium of the family Labiatae. Their name arises because they resemble the stinging nettle but do not sting. Originally native to Europe and Asia they are now spread world wide. Species About 50 species, including: Lamium album (White Deadnettle) Lamium amplexicaule (Henbit Deadnettle) Lamium hybridum (Cut-leaf Deadnettle) Lamium maculatum (Spotted Deadnettle) Lamium purpureum (Red Deadnettle) The deadnettles, genus Lamium, comprise the type genus of the plant family Lamiaceae. ... Genera Many, see text Ref: Delta 2002-07-22 Lamiaceae, or the Mint family, is a family of plants in about 180 genera and some 3,500 species. ... Binomial name Urtica dioica L. The Stinging nettle (Urtica dioica and sometimes jaggy nettle or burning weed) is a herb native to Europe, Asia, and North America, the best known member of the nettle genus Urtica. ...
In a 2000 study, researchers at Ohio State University found the amount of SCN cysts that formed on purple deadnettle was equal to the amount produced on a highly-susceptible soybean variety.
Harrison explains purple deadnettle is a winter annual in Ohio and emerges after soybeans are harvested in September.
He adds purple deadnettle is one of the most common weeds in no-till corn and soybean fields in Ohio.
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