Cylista pycnostachya DC.
Rhynchosia calycina Guill. & Perr.
Rhynchosia pycnostachya is a robust, climbing shrub with twining stems up to 10cm in diameter; it can grow 4 - 5 metres long[
The plant is harvested from the wild for local use as a medicine and source of materials. It is sometimes grown as an ornamental[
Older stems are used as fish poisons[
West tropical Africa - Senegal to southern Chan and the Central African Republic, south to Cameroon and equatorial DR Congo
Forests, lateritic plateau[
]. Damp sites in galleried forests[
|Other Uses Rating||
|Cultivation Status||Ornamental, Wild
Although many species within the family Fabaceae have a symbiotic relationship with soil bacteria, this species is said to be devoid of such a relationship and therefore does not fix atmospheric nitrogen[
The leaves are used to treat naso-pharyngeal affections and pulmonary troubles[
The leaves and seed are used in the treatment of leprosy[
The plant (part not specified) is applied topically to treat venomous stings, bites, etc[
We have seen no specific entry for this species, but all members of this genus have at least some merit for use as a ground cover and in local soil conservation projects[
The stems are used as abrasives, cleaners, etc[
The seeds have been used as standards when weighing gold dust[
Like many species within the family Fabaceae, once they have ripened and dried 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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