Generally, Eucalyptus acmenoides, Eucalyptus melliodora, Eucalyptus moluccana, or Eucalyptus rummeryi, all of the family Myrtaceae
I have only found images of this Australian wood as a burl but because it is rarely available in the USA I have not made much of a search, so would not be at all surprized if it is available in lumber form in Australia. Although I list the name form with no space, it is more commonly shown as "yellow box".
my samples: NOTE: these pics were all taken in very bright incandescent lighting ("soft white" at 2700K) colors will vary under other lighting conditions
both sides of a sample plank of yellowbox / Eucalyptus melliodora --- HUGE enlargements are present. This sample was loaned to me by Mark Peet whom I thank for this and other contributions to the site.
end grain and end grain closeup of the piece directly above