1. 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
   - fireweed, giant willowherb, rosebay willowherb, Epilobium angustifolium

Derived forms: wickups

Type of: willowherb

Part of: Epilobium, genus Epilobium

• factional
• factionalism
• factious
• factiously
• factitious
• factitive
• factoid
• factor
• factor analyse
• factor analysis
• factor analytic
• factor analytical
• factor analyze
• factor I
• factor II
• factor III
• factor in
• factor IV
• factor IX
• factor of proportionality
• factor of safety
• factor out
• factor V
• factor VII
• factor VIII