Assertion: potent alkaloid | /r/ObjectUse | used in deadly poison curare
Facets:
Source sentences:
text: An extract from the bark and stems is the source of a potent isoquinoline alkaloid used in the deadly poison curare.
text: An extract from the bark and stems of the South American vine (Chondodendron tomentosum), a member of the Menispermaceae, is the source of a potent isoquinoline alkaloid used in the deadly poison curare.