Source : WordNet®

wickup
     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: {fireweed},
          {giant willowherb}, {rosebay willowherb}, {Epilobium
         angustifolium}]