What is "nyctanthes"

Nyctanthes is a genus of flowering plants in the family Oleaceae, native to southeastern Asia. It is currently accepted as containing two species; other species previously included in this genus have been transferred to other genera, most of them to Jasminum.

They are shrubs or small trees growing to 10 m tall, with flaky bark. The leaves are opposite, simple. The flowers are produced in small clusters of two to seven together. The fruit is a two-parted capsule, with a single seed in each part.The name Nyctanthes means "night flowering".

1. Nyctanthes aculeata Craib – Thailand
2. Nyctanthes arbor-tristis L. - ( Night-flowering Jasmine or "Sad Tree") native to India, Nepal, Bhutan, Assam, Arunachal Pradesh, Java and Sumatra.