I’m not familiar with the tree, so I’m not sure if it is pleasant, but if it were as pleasant as it sounds, then it is pleasant indeed.
1. Bot. A genus of Leguminous shrubs or trees, of the Mimosa tribe, found in the warmer regions of the Old World; several species of which yield Gum Acacia or Gum Arabic, Catechu, and other products; they form in Australia thickets called scrubs.
2. pop. The North-American Locust-tree, called also False-Acacia (Robinia pseud-Acacia), with sweet-scented white flowers, grown as an ornamental tree in England.
3. Med. The inspissated juice of the unripe fruit of species of Acacia and Mimosa, used as a drug.