scetellaria lateriflora
Webster's Dictionary (GCIDE)
Skullcap \Skull"cap`\, n.
1.A cap which fits the head closely; also, formerly, a headpiece of iron sewed inside of a cap for protection. [1913 Webster]
2.(Bot.) Any plant of the labiate genus Scutellaria, the calyx of whose flower appears, when inverted, like a helmet with the visor raised. [1913 Webster]
3.(Zool.) The Lophiomys. [1913 Webster]
Mad-dog skullcap (Bot.), an American herb (Scetellaria lateriflora) formerly prescribed as a cure for hydrophobia. [1913 Webster]