Wormseed /(?)/

Worm·seed

Wormseed

n.
  1. Any one of several plants, as Artemisia santonica, and Chenopodium anthelminticum, whose seeds have the property of expelling worms from the stomach and intestines. (Bot.)

Phrases & Compounds
Wormseed mustard
a slender, cruciferous plant (Erysinum cheiranthoides) having small lanceolate leaves.