- a North American dogbane, Apocynum cannabinum, having erect clusters of greenish-white flowers and a root with laxative and emetic properties.
- hemp (def. 1).
- another name for hemp, esp the variety Cannabis indica, from which several narcotic drugs are obtained
- a perennial American apocynaceous plant, Apocynum cannabinum, whose fibre was formerly used by the Indians to make rope
