Lobelia; Lobelia inflata 


North American wild lobelia having small blue flowers and inflated capsules formerly used as an antispasmodic

A cough is a sudden, often repetitive, spasmodic contraction of the thoracic cavity, resulting in violent release of air from the lungs, and usually accompanied by a distinctive sound. A cough is usually initiated to clear a buildup of phlegm in the trachea; air may move through this passage at up to 480 km/h (300 mi/h). ...

Indian Tobacco as related to Cough