Indigofera dorycnium Fenzl
Indigofera dupuisii Micheli
Indigofera pulchra is a stiffly erect branching annual plant, sometimes perennating and becoming a softly woody shtub; it can grow 30 - 150cm tall[
The plant is harvested from the wild for local use as a medicine
Tropical Africa - Senegal to Sudan, south to Angola, DR Congo, Tanzania, avoiding areas of higher rainfall
Laterite, edge of bowé; sands; fallowland; sandy hollows; sommetimes ruderal; savannahs; old cultivations (sometimes invasive); road sides; dry thickets; at elevations from 100 - 1,780 metres[
Indigoera species generally grow best in a sunny position, preferring a well-drained but moist soil[
]. Many of the species will also succeed in drier conditions and in poor soils.
This species has a symbiotic relationship with certain soil bacteria; these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby.
The leaves are used medicinally[
The whole plant is used to treat snake bites[
Like many species within the family Fabaceae, once they have been dried for storage the seeds of this species may benefit from scarification before sowing in order to speed up and improve germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing[
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