WordNet sense 1 (coarse South American herb grown for its blue-and-white flowers followed by a bladderlike fruit enclosing a dry berry):

Nicandra physaloides, shoo fly

WordNet sense 2 (intensely poisonous tall coarse annual tropical weed having rank-smelling foliage, large white or violet trumpet-shaped flowers and prickly fruits):

jimsonweed, common thorn apple, Datura stramonium, Jamestown weed