Indigofera monosperma Blatt.
Psoralea leichardtii F.Muell.
Indigofera glandulosa is an erect perennial plant with branches that can become more or less woody, especially near the base; it can grow 10 - 75cm tall[
The plant is harvested from the wild for local use as a nutritive tonic. In times of need, the plant is harvested from the wild for its seed which are an emergency source of food[
E. Asia - tropical India, Andaman and Nicobar Islands, Indonesia; northern Australia
Periodically much desiccating heavy soils; agricultural fields, grassy localities, desiccated pools, roadsides; at elevations up to 400 metres[
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Indigofera 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.
Seeds - cooked[
]. Eaten in times of scarcity, when better foods are not available[
The seeds are used as a nutritive tonic[
The plant is grown as a green manure[
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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