Laserwort /(lā"sẽr*wûrt`)/

La·ser·wort

Laserwort

n.
  1. Any plant of the umbelliferous genus Laserpitium, of several species (as Laserpitium glabrum, and Laserpitium siler), the root of which yields a resinous substance of a bitter taste. The genus is mostly European. (Bot.)