1. North American wild lobelia having small blue flowers and inflated capsules formerly used as an antispasmodic • Syn: Indian tobacco, Lobelia inflata • Hypernyms: lobelia 2. annual or perennial herbs with inflated seed pods; some placed in genus Lesquerella • Hypernyms: herb, herbaceous plant • Member Holonyms: Vesicaria, genus Vesicaria 3. any of several plants of the genus Physaria having racemose yellow flowers and inflated pods • Hypernyms: herb, herbaceous plant • Member Holonyms: Physaria, genus Physaria 4. any of several hairy North American herbs having yellow racemose flowers and inflated pods • Hypernyms: herb, herbaceous plant • Member Holonyms: Lesquerella, genus Lesquerella