mad-dog skullcap

[ mad-dawg, -dog ]
/ ˈmædˌdɔg, -ˌdɒg /

noun Botany.

a North American skullcap, Scutellaria lateriflora, having underground stems and one-sided clusters of blue to white flowers.

Origin of mad-dog skullcap

An Americanism dating back to 1815–25; so called because it was formerly used as an antispasmodic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019