any of numerous plants belonging to the genus Epilobium, of the evening primrose family, having terminal clusters of purplish or white flowers.
- Compare fireweed.
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How to use willow herb in a sentence
Those I had were laid in June on a leaf of willow herb (Epilobium).The Moths of the British Isles, First Series | Richard South
Masses of red valerian, and some of the graceful bright rose-bay willow-herb, give colour to the banks and overhang the walls.Devon, Its Moorlands, Streams and Coasts | Rosalind Northcote
Next season Coltsfoot, willow-herb, Oxyria, and two grasses had planted themselves.The Romance of Plant Life | G. F. Scott Elliot
It will eat almost any sort of Galium; also willow herb (Epilobium), and purple loosestrife (Lythrum salicaria).The Moths of the British Isles, First Series | Richard South
Across where there is a mud-bank the stout stems of the willow herb are already tall.Round About a Great Estate | Richard Jefferies
British Dictionary definitions for willowherb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012