scammony

noun, plural scam·mo·nies.

1. a twining, Asian convolvulus, Convolvulus scammonia.

noun plural -nies

1. a twining Asian convolvulus plant, Convolvulus scammonia, having arrow-shaped leaves, white or purple flowers, and tuberous roots
2. a resinous juice obtained from the roots of this plant and having purgative properties
3. any of various similar medicinal resins or the plants that yield them