Nyctanthes arbor-tristis
Names: menas Night-flowering sad tree.
English: Sad tree; Night-Jasmine of India; Paghala tree.
Sanskrit: Sephalika. Hindi: Harsinghar.
Botany: Central India, small tree; flowers brilliant, highly fragrant, white and yellow, flowering only at night.
Source: Ghose, Anshutz. Boericke. Clarke.