@Robynmac welcome here, in NatureMapr. Good morning !
Straight to the point, please tell us more, (including) about the red flowers on the top to ease the way to identifying this to species, out of the many, scores, of species with foliage per se having this appearance and foliage features.
Oh wow! Thank you for the searching through thousands of photographs. (I know what its like doing so). Great flowering photograph (including considering the tree's height).
Awesome and wonderful large tree, local indigenous, species name: _Syzygium moorei_ 'durobby' – i am carefully checking this before confirming this identification .
Same botanical family as the pendas (Xanthostemon genus and spp.), different genus and species .
Over the years have you seen any white or red fruits from this tree, looking like large lilly pilly fruits ? (–no need for photos of them, I am just asking of your memories).
Now for me to wonder about this wonderful and awesome, large mature tree's origin story. Spontaneous naturally grown? Or long ago planted by people ?
Identification confirmed, including using these two scholarly references:
• Harden Gwen, Hugh Nicholson, Bill McDonald, Nan Nicholson, Terry Tame and John Williams (2024) Rainforest Plants of Au : Rockhampton to Victoria . _Syzygium moorei_ (page) .
Mobile devices (phones and tablets) app.: → https://rainforests.net.au/product/rainforest-plants-of-australia-mobile-app/ → https://rainforestpublishing.com.au/shop/rainforest-plants-of-australia-2-0-mobile-app/
Computer (desktops and laptops) software: → https://rainforests.net.au/product/rainforest-plants-of-australia-desktop-app/ → https://rainforestpublishing.com.au/publications/ .
• Flora of NSW online PlantNet: PlantNET (The NSW Plant Information Network System). _Syzygium moorei_ (F.Muell.) L.A.S.Johnson (page): → https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Syzygium~moorei Royal Botanic Gardens and Domain Trust, Sydney.
It's quite tall and starting to get larger buttress roots. We have a lot of rainforest species that were planted approximately 30 - 40 years ago and I suspect this was one of them. I also think we have 2 more younger ones that have naturally grown. Thank you for all your research.