night jasmine

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun An Asian shrub or small tree (Nyctanthes arbor-tristis) having opposite leaves and small, fragrant flowers with an orange tube and white lobes.
• noun A West Indian shrub (Cestrum nocturnum) having tubular greenish-white flowers that are very fragrant at night.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun West Indian evergreen shrub having clusters of funnel-shaped yellow-white flowers that are fragrant by night