What is a narcotic alkaloid extracted from the tops of the common broom (Cytisus scoparius, formerly Spartium scoparium), as a colorless oily liquid of aniline-like odor and very bitter taste called?

sparteine — A narcotic alkaloid extracted from the tops of the common broom (Cytisus scoparius, formerly Spartium scoparium), as a colorless oily liquid of aniline-like odor and very bitter taste. (Webster's 1913.)