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 ]

an American weedy plant with small white or greenish flowers

[ Syn: erechtites hieracifolia ]