squawroot

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several North American plants, especially.
• noun A parasitic plant (Conopholis americana) having a scaly brownish stem and a conelike inflorescence of tubular yellowish flowers.
• noun A trillium (Trillium erectum) having strong-smelling purple to yellow flowers.

from The Century Dictionary.

• noun A leafless fleshy plant, Conopholis Americana, of the Orobanchaceæ, found in the eastern United States.
• noun Rarely, the blue cohosh, Caulophyllum thalictroides.

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

• noun (Bot.) A scaly parasitic plant (Conopholis Americana) found in oak woods in the United States; -- called also cancer root.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Either of two, unrelated plants from eastern North America:

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

• noun tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally
• noun tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally