Not documented
Bangladesh, Bhutan, China, India, Myanmar, Nepal
Thrives in forests, sides of rocks, grasslands at roadsides, at an elevation of 1300-1600 m.

It is erect annual herb growing up to 25 cm tall.
Stem is slender, often forked at the top.
Leaves are elliptic or ovate-lanceshaped, 1-6 cm long and 0.5-3.5 cm wide. Arranged oppositely at the base of the plant and crowded towards the top.
Flowers are yellow, 0.4-0.5 cm long. Arranged in one-sided racemes up to 8 cm long. Found in leaf axils, at branch ends, or laterally.
Fruit is capsule-like, obovate in shape, about 0.25 cm long and 0.2 cm wide. Flattened or notched at the tip with narrow wings.
Flowering and Fruiting: August-September.