Any of several flowering plants in the genus Epilobium of the family Onagraceae.(noun)
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Use "willowherb" in a sentence
"In the waste ground by the edge of Hollingside wood tall spikes of rosebay willowherb, tipped with the last of their purple flowers, were releasing their downy seeds."
"Then, with my senses as tickled as those of the forest bug, I had to turn away to groom willowherb cotton from my face."
"A forest bug, its angular armour trailing white down as it blundered among the seed pods, paused to groom willowherb cotton from its antennae."