(n)tall North American perennial with creeping rootstocks and narrow leaves and spikes of pinkish-purple flowers occurring in great abundance in burned-over areas or recent clearings; an important honey plant, Syn.giant willowherb, rosebay willowherb, wickup, Epilobium angustifolium
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
n. (Bot.) (a) the oleander. [ Obs. ] (b) Any shrub of the genus Rhododendron. [ U.S. ] (c) An herb (Epilobium spicatum) with showy purple flowers, common in Europe and North America; -- called also great willow herb. [ 1913 Webster ]