Growing up on the Murray River there was a lot of redgum logged and redgum furniture mades etc.
I remember in the 90's there was a massive boom in the form of redgum burl furniture, bowls, clocks etc.
Beautiful and unique items made from the wart like growths on gumtrees.
Extract from Google:
Redgum burls
Timber. Redgum Burl. About Burls (Also known as Burrs in the US/UK): Burls are the bulbous, lumpy growths that form on tree trunks, roots, and branches. They do not occur on every tree and can be hard to obtain.
This is a traditional hide.
Beware of wriggly sticks in warmer weather.
BYO writing implement.