Noun
- 1. fireweed, giant willowherb, rosebay willowherb, wickup, Epilobium angustifolium, willowherb
- usage: 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
- 2. fireweed, Erechtites hieracifolia, weed
- usage: an American weedy plant with small white or greenish flowers
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