fireweed has definitions from the field of botany
[ noun ] (botany) 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

Related terms

willowherb Epilobium

[ noun ] (botany) an American weedy plant with small white or greenish flowers

Related terms

weed genus_Erechtites