In my son's garden - Lilly Pilly (Syzygium)

Is it one of the Acacia family Bernieh......I think the flowers are quite similar................

Milky - found out it's a Lilly Pilly tree / Syzygium.

Milky:

Lily Pilly (Acmena smithii) is commonly grown here in California. It's in the Myrtacae family - which is the Myrtle Family. The berries are edible also.

It is commonly classified incorrectly into two other genera: Eugenia and Syzygium.