Botanical Overview
Alphitonia excelsa is a species in the Rhamnaceae family. The buckthorn family (Rhamnaceae) includes shrubs and trees with simple, alternate leaves and small, inconspicuous flowers with four or five petals. The fruits are typically drupes or capsules. Many species contain anthraquinone glycosides with strong purgative activity. Phytochemical data for this species are limited at present.
General Description
It is endemic to Australia, being found in New South Wales, Queensland, Northern Territory and the northeastern tip of Western Australia. It is used in bush regeneration as a pioneer species and for amenity planting.
Family Context
The Rhamnaceae family is widely distributed. Notable medicinal members include:
- Ceanothus americanus — 21 documented uses
- Buckthorn — 8 documented uses
- Cascara Sagrada — 6 documented uses
- Mabi — 5 documented uses
Geographic Distribution
Alphitonia excelsa has been recorded in 10 countries and territories worldwide, including Australia, Brunei, Indonesia, Malaysia, French Polynesia, and others.
Active Compounds
Phytochemical research has identified 2 compounds in this species: betulin, betulinic-acid.
Research Status
Although this species has documented phytochemical constituents, its ethnobotanical and clinical documentation remains incomplete. The limited documentation available for this species represents an opportunity for ethnobotanical research.