Quassia africana is a shrub or undershrub growing 1.2 - 4 metres tall[
The plant is gathered from the wild for local medicinal use.
West tropical Africa - Cameroon to eastern Zaire, south to northern Angola.
In the understorey of rainforests and shady, humid woods at elevations of 5 - 500 metres[
A plant of the lowland, humid tropics, where it is found at elevations up to 500 metres[
The leaves and the bark of the root are very bitter[
]. They are used as a tonic, as an appetizer and also as a vermifuge[
Chloroform and ethyl acetate extracts of the plant have shown pronounced antiviral activity against Herpes simplex, Semliki forest, Coxsackie and Vesicular stomatitis viruses. This activity was produced, at least in part, by the quassinoid simakikalactone D[
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