Marie Lochman / Karri (Eucalyptus diversicolor), third tallest tree in the world, Western Australian endemic plant, D'Entrecasteaux National Park, April 2017

Marie Lochman / Wandoo (Eucalyptus wandoo), Western Australian endemic plant, Darling Range, December 2014

Marie Lochman / Wandoo (Eucalyptus wandoo), Western Australian endemic plant, Mt. Yetar - Darling Range, December 2014

Marie Lochman / Salmon Gum (Eucalyptus salmonophloia), Western Australian endemic plant, Dunn Rock Nature Reserve, March 2015

Marie Lochman / Red tingle tree (Eucalyptus jacksonii), Western Australian endemic plant, Walpole-Nornalup National Park, Western Australia.

Marie Lochman / Tree Top Walk - Valley of Giants, tourist attraction - walk in the canopy of Red Tingle giant eucalyptus (Eucalyptus jacksonii) trees, Walpole-Nornalup National Park, south west, Western Australia, Ja...

Steven David Miller / Red-collared lorikeet (Trichoglossus rubritorquis) pair examining hole in Eucalyptus as a potential nesting hollow. Katherine, Northern Territory, Australia.

Dave Watts / Koala (Phascolarctos cinereus), eating Eucalyptus leaves, Victoria, Australia.

Sandesh Kadur / A vine growing on Eucalyptus bark, Tompotika Peninsula, Sulawesi, Indonesia.

Andrew Walmsley / Silver eye / Grey backed white eye (Zosterops lateralis) in flowering Pohutukawa tree (Metrosideros excelsa) Botanic Gardens, Christchurch, South Island, New Zealand, December

ZSSD / Queensland Koala (Phascolarctos cinereus adustus) eating eucalyptus leaves, native to Australia

ZSSD / Queensland Koala (Phascolarctos cinereus adustus) in eucalyptus tree, native to Queensland