n. a plant of Europe and Asia (Epilobium hirsutum) having purplish-red flowers and hairy stems and leaves; it was introduced into North America. Syn. -- hairy willowherb, Epilobium hirsutum. [ WordNet 1.5 ]
(n) plant of Europe and Asia having purplish-red flowers and hairy stems and leaves; introduced into North America, Syn. Epilobium hirsutum, codlins-and-cream