Alstonia constricta is an erect shrub or small tree that can grow up to 12 metres tall. The bole can be 15 - 38cm in diameter. The plant often suckers and can form thickets. The corky bark is fissured[
The plant is harvested from the wild for local use as a medicinal and source of dye.
Eastern Australia, Queensland, New South Wales.
Dry and littoral forests[
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The bitter-tasting bark is bitter, febrifuge and tonic. It is used in the treatment of fevers[
The bark contains three alkaloids:- Alstonine, Porphrine and Astonidine, plus traces of several others[
The bark can be used to produce yellow dyes of various shades[
The pale yellow wood is close-grained. It tends to warp when seasoning[
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