Fireweed

An American plant (Erechthites hiercifolia), very troublesome in spots where brushwood has been burned.

The great willow-herb (Epilobium spicatum).

an American weedy plant with small white or greenish flowers

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