DCHP-1 Online
toothache grass 
a species of grass, Ctenium aromaticum, having an aromatic flavor and formerly used as a remedy for toothache.
- 1796 (1911) I walked down the hill in the evening and gathered . . . toothache plant, like toothache grass.
- 1796 (1911) I walked down the hill in the evening and gathered . . . toothache plant, like toothache grass.