mad-dog skullcap

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

• noun A North American perennial plant (Scutellaria lateriflora) in the mint family, having one-sided clusters of two-lipped blue or white flowers.

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

• noun (Bot.) An American mint (Scutellaria lateriflora) that yields a resinous exudate used esp. formerly as an antispasmodic.

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

• noun an American mint that yields a resinous exudate used especially formerly as an antispasmodic