Medicine - It is known for its antidiabetic uses among the folk people of Northeast Region of India. Traditional healers used the boiled concoction of the plant as a part of diabetes treatment and other ailments like dysentery, stomach complaints, gastritis, etc
Bangladesh, Bhutan, China, India, Myanmar, Nepal
Subtropical biome, 600-2300m.

Perennial shrub 1m tall.
Square-shaped, often with hairs.
Opposite, simple, with prominent veins.
Pink or purple, with four petals and numerous stamens.
Small, dry, capule.
Flowering: July-November.