deadnettle /ˈdɛdnɛtəl/ noun1 •Any plant of a species in genus Lamium, which closely resembles the nettle, but does not possess stinging hairs.After studying the book for several minutes, he began to assemble a weird collection of plants and herbs on the floor in front of him. Hemlock and foxglove, ivy and deadnettle, henbane and marigold[.] — 1970 formsdeadnettles