Wil·low-herb n. Bot. A perennial herb (Epilobium spicatum) with narrow willowlike leaves and showy rose-purple flowers. The name is sometimes made to include other species of the same genus.
  Spiked willow-herb, a perennial herb (Lythrum Salicaria) with willowy leaves and spiked purplish flowers.
  ◄ ►
  willowherb
       n : a plant of the genus Epilobium having pink or yellow flowers
           and seeds with silky hairs