Grumilea psychotrioides DC.
Uragoga psychotrodes (DC.) Kuntze
Common Name: Azier
Azier is a shrub growing up to 6 metres tall, with rounded, glabrous branches[
The plant is harvested from the wild for use as a dye and medicinal plant[
Tropical Africa - Senegal to Sudan, south to Gabon and Zaire.
Closed and fringing forest and in savannah woodland, from sea-level up to elevations of 1,200 metres[
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Early symptoms of eye troubles are treated with a decoction of the bark in a steam bath, whereby a sheet covers the head of the patient and the container with the steaming liquid[
A leaf maceration is rubbed on the forehead, or the sap is drunk, in order to combat headache and depressions[
The root, or the whole plant, yields a widely used expectorant medicine for asthma and bronchitis[
The bark yields a red dye which is used to dye textiles[
]. The dye potential is optimized by the mordanting effect of the high concentration aluminium present in the leaves[
Aluminium accumulation in leaves seems to be a chemotaxonomic characteristic of the genus Psychotria[
]. Aluminium salts are the main mordants used to strengthen and multiply the chemical bonds between textile fibres and most natural dyes[
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