Henbane (Hyoscyamus niger) – Uses & Health Benefits (Ref: Bhavaprakasa Nighantu)Plant Description Henbane is either annual or biennial plant that belongs to nightshade family that is called Solanaceae. Plant grow up to the height of 25-100cm long. Hairy leaves of this plant are oval or elliptical in shape and dark green in colour. Ideally flowering season of annual plant is July to September whereas biennial plants bloom in the month of May and June. One side tassels and yellow flowers