mad dog skull-caps

mad-dog skullcap

[mad-dawg, -dog]
noun Botany.
a North American skullcap, Scutellaria lateriflora, having underground stems and one-sided clusters of blue to white flowers.

Origin:
1815–25, Americanism; so called because it was formerly used as an antispasmodic

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WordNet
mad-dog skullcap

noun
an American mint that yields a resinous exudate used especially formerly as an antispasmodic [syn: blue pimpernel
WordNet® 3.0, © 2006 by Princeton University.
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