'Jamestown weed' definitions:

Definition of 'Jamestown weed'

From: WordNet
noun
Intensely poisonous tall coarse annual tropical weed having rank-smelling foliage, large white or violet trumpet-shaped flowers and prickly fruits [syn: jimsonweed, jimson weed, Jamestown weed, common thorn apple, apple of Peru, Datura stramonium]

Definition of 'Jamestown weed'

From: GCIDE
  • Jamestown weed \James"town` weed`\ (Bot.) The poisonous thorn apple or stramonium ({Datura stramonium}), a rank weed early noticed at Jamestown, Virginia. See Datura. [1913 Webster]
  • Note: This name is often corrupted into jimson, jimpson, and gympsum. [1913 Webster]