Eucalyptus citriodora commonly known as the ‘lemon-scented gum’. Recently it underwent a name change and it is now called Corymbia. A large tree often reaching a great height with a smooth whitish pale pink bark. Readily identified by the fragrant ‘citronella-like’ odour of the crushed leaves, it grows extensively in Queensland in natural stands.
The yield of oil from the leaves and terminal branchlets from forest trees varies from 0.5 to 0.75 percent and from cultivated trees up to two percent.
The principal constituent of the oil is citronellal and the oil is used for industrial and perfumery purposes. Large quantities of oil were once distilled in Queensland however Brazil and China which have extensive plantations, now produce almost all the oil from this species.