This is the Pleiocarpa mutica that I mentioned recently. It reminds me of the Phaleria clerodendron which has similar white fragrant cauliflorus flowers. However, this is a shrub of a much smaller stature.
I have planted a few of them in the landscape and its inconspicuous leaves blend in very well with most natural vegetation. Sometimes I would get people asking where the fragrance is coming from and that is the fun of it. In a mature plant, the flowers are well hidden at the base behind the dense crown of leaves.
Don't judge a book, oops I mean a plant, by its look.