culver's physic

from the GNU version of the Collaborative International Dictionary of English.

• (Bot.) The root of a handsome erect herb (Leptandra Virginica syn. Veronica Virginica) common in most moist woods of North America , used as an active cathartic and emetic; also, the plant itself.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a tall perennial herb having spikes of small white or purple flowers; common in eastern North America