n. 1. a North American wild lobelia (Lobelia inflata) having small blue flowers and inflated capsules formerly used as an antispasmodic.
Syn. -- Indian tobacco. [ WordNet 1.5 ]

2. any of a number of annual or perennial herbs with inflated seed pods; some are placed in the genus Lesquerella. [ WordNet 1.5 ]

3. any of several plants of the genus Physaria having racemose yellow flowers and inflated pods. [ WordNet 1.5 ]

4. any of several hairy North American herbs having yellow racemose flowers and inflated pods. [ WordNet 1.5 ]