Botanical name                Syzygium smithii        

A common name                Lilly Pilly

Seedling
Not yet
Young plant
Juvenile
Not yet, definately around though.
Reasonably mature
Sassafras
Syzygium smithii fruit
Syzygium smithii
Lilly Pilly fruit at around a couple of years or so in reasonable conditions, with light.  This one is on the down hill side of our hill side quad bike parking area, so it is moderately open.
Syzygium smithii trunk
Well I guess you actually call this Juvenile in Lilly Pilly terms, but it does show the reddish tinged bark as they get older.  Thats a young Doryphora sassafras just to the right of this trunk.
Syzygium smithii trunk