Gentiana scabra

Gentiana scabra, also known as the Japanese gentian or the Rindō Flower, is a species of flowering plant in the Gentian family (Gentianaceae), found in much of East Asia. The flowers bloom in mid-summer, autumn and are blue or dark blue in color.

Medicinal use
Gentiana scabra roots are used as a bitter tonic in traditional Chinese medicine where it is said to promote digestive secretions and treats a range of illnesses associated with the liver. It is also used in traditional Tibetan medicine.