1) Indian tobacco 2) Lobelia 3) Lobelia inflata 
[n] - annual or perennial herbs with inflated seed pods 2. [n] - any of several plants of the genus Physaria having racemose yellow flowers and inflated pods 3. [n] - any of several hairy North American herbs having yellow racemose flowers and inflated pods
noun North American wild lobelia having small blue flowers and inflated capsules formerly used as an antispasmodic