On our side of the ditch, all big tall Eucalyptus types are "Blue Gum" if you are my age, could be Nitan's or Grey Gums..... or any of half a dozen other types of Koala food, but they all get grouped as Blue Gum, mainly because we didn't know any better.
The newer generations are getting better, being more selective about farm and riparian plantings.
But yep, dead standing gum sorts the men from the boys when it comes to saws and the oil pumps ability to oil the chain groove enough to stop blueing the bar when your chain dulls on the second bucking cut!
Wedge on that splitter needed more taper, to short and thick for that stuff to split well.