cascara

noun

Etymology: Etymology tree Spanish cáscarabor. English cascara Borrowed from Spanish cáscara (“bark" or "husk”).

1. A North American buckthorn (Frangula purshiana, syn. Rhamnus purshiana) whose bark is used as a laxative.
2. A laxative drug or preparation based on this plant.

   “"That's as bitter as a dose of cascara."”

3. Dried coffee cherry fruit used in teas and other drinks.