Indigofera perrottetii DC.
Indigofera richardiana Baill.
Indigofera boiviniana Baill.
Indigofera punctata Boivin
Indigofera microcarpa is an annual or perennial usually grey-green herb with few-branched prostate stems radiating from a central woody rootstock, ascending towards the tips[
The plant is harvested from the wild for local use as a medicine
Tropical Africa - Mauritania and Senegal to Niger and Nigeria; Sudan, Ethiopia south to Zimbabwe and Mozambique; Angola; Madagascar
Weed of cultivation; shores of receding lakes and rivers; sandy soils; clayey soils; seasonally flooded places; at elevations up to 1,200 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 in the treatment of pulmonary troubles[
Seed - it has a hard seedcoat and 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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