Pinkroot — The root of Spigelia Marilandica, used as a powerful vermifuge; also, that of S. Anthelmia. See definition 2 (below).
Pinkroot — A perennial North American herb (Spigelia Marilandica), sometimes cultivated for its showy red blossoms. Called also Carolina pink, Maryland pinkroot, and worm grass.
Pinkroot — An annual South American and West Indian plant (Spigelia Anthelmia).