Botanical Overview
Eucalyptus (Eucalyptus calophylla) is a species in the Myrtaceae family. The myrtle family (Myrtaceae) includes trees and shrubs with opposite leaves that contain aromatic oil glands. The flowers are showy with numerous stamens, and the fruits are often fleshy berries or capsules. Many species produce essential oils with antiseptic and antimicrobial properties. Phytochemical data for this species are limited at present.

General Description
It is a tree or mallee with rough bark on part or all of the trunk, lance-shaped adult leaves, branched clusters of cup-shaped or pear-shaped flower buds, each branch with three or seven buds, white to pink flowers, and relatively large oval to urn-shaped fruit, colloquially known as honky nuts. Marri wood has had many uses, both for Aboriginal people, and in the construction industry.
Family Context
The Myrtaceae family is primarily tropical and subtropical. Notable medicinal members include:
- Guava — 57 documented uses
- Melaleuca leucadendron — 49 documented uses
- Clove — 45 documented uses
- Blue Gum — 44 documented uses
Geographic Distribution
Eucalyptus has been recorded in 10 countries and territories worldwide, including Australia, Brazil, China, Spain, Morocco, and others.
Active Compounds
Phytochemical research has identified 1 compound in this species: afzelichin.
Research Status
Although this species has documented phytochemical constituents, its ethnobotanical and clinical documentation remains incomplete. Additional phytochemical investigation could identify novel bioactive compounds in this plant.