Botanical name: Verbascum thapsus
Other names: white mullein, feltwort, great mullein, commun mullein
Family: scrophulariaceae
Part used: leaf, flower and root
The leaf can be smoked as a non-addictive alternative to tobacco.
 
Ref: ‘Ayurvedic Medicine by Sebastian Pole; ‘Ayurvedic Pharmacology & Therapeutic Uses of Medicinal Plants’ by Vaidya V.M. Gogte; ‘Yogi of Herbs’ by V. Lad & D. Frawley; ‘Herbs Are Special’ by Isabel Shipard.