Looks like Paraserianthes lophantha but with a slightly different flowerhead and a winged edge to the seedpod. Maybe a type of Albizia.
hortiphoto I appreciate your help.Thank you. I still have 12..(now 11, ) plants to id from Mauritius. It is hard ..I don't seem to be getting very far. Paraserianthes lophantha was suggested on another forum. However my pods were definitely fringed /winged so I ruled it out. Paraserianthes lophantha - Wikipedia, a enciclopedia libre
Here is one with the right looking pods, but wrong flowers: Mimosa bahamensis (not to mention wrong neck of the woods). Motita Morada (Mimosa bahamensis) · NaturaLista Are there 10 or fewer stamens? That should lead to Mimosa rather than Albizia or Acacia. The Wikipedia page has a lot of Mimosa species you can look up. Mimosa - Wikipedia
Wow! Brilliant . Many many thanks Lila. Thank you for coming to the rescue. That looks a perfect fit. Gagnebina pterocarpa (Lam.) Baill. | Plants of the World Online | Kew Science