eucalyptus tree vs Eucalyptus citriodora

Other hyponyms of eucalyptus tree include flooded gum, mallee, stringybark, smoothbark, Eucalyptus amygdalina, peppermint, peppermint gum, red gum, Eucalyptus calophylla, marri, red gum, Eucalyptus camaldulensis, Eucalyptus rostrata, river gum, river red gum, Eucalyptus camphora, mountain swamp gum, Eucalyptus coriacea, Eucalyptus pauciflora, ghost gum, snow gum, white ash, alpine ash, Eucalyptus delegatensis, mountain oak, Eucalyptus fraxinoides, white mountain ash, blue gum, Eucalyptus globulus, fever tree, Eucalypt ovata, swamp gum, Eucalyptus maculata, spotted gum, Eucalyptus maculata citriodora, lemon-scented gum, Eucalyptus regnans, mountain ash, Eucalyptus viminalis, manna gum.