Indian tobacco

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A poisonous North American plant (Lobelia inflata) having light blue to white flowers and rounded seedpods enclosed by an inflated persistent calyx.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun North American wild lobelia having small blue flowers and inflated capsules formerly used as an antispasmodic
• noun tobacco plant of South America and Mexico