duboisia myoporoides

from The Collaborative International Dictionary of English v.0.48

Duboisine \Du*bois"ine\, n. (Med.)
   An alkaloid obtained from the leaves of an Australian tree
   ({Duboisia myoporoides}), and regarded as identical with
   {hyoscyamine}. It produces dilation of the pupil of the eye.
   [1913 Webster]