lousewort

Any of numerous semiparasitic plants of the genus Pedicularis, having spikes of irregular, usually hooded or beaked flowers.

A scrophulariaceous plant of the genus Pedicularis.

The stavesacre, Delphinium Staphisagria, the powdered seeds of which have been used from ancient times to destroy lice. Also louse-herb.

Any species of Pedicularis, a genus of perennial herbs. It was said to make sheep that fed on it lousy.

a plant of the genus Rhinanthus.

Any of very many semiparasitic flowering plants, of the genus Pedicularis, related to wood betony.