Scammony

A species of bindweed or Convolvulus (C. Scammonia).

An inspissated sap obtained from the root of the Convolvulus Scammonia, of a blackish gray color, a nauseous smell like that of old cheese, and a somewhat acrid taste. It is used in medicine as a cathartic.

twining plant of Asia Minor having cream-colored to purple flowers and long thick roots yielding a cathartic resin

resin from the root of Convolvulus scammonia

tropical American morning glory