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Onagraceae family

Ludwigia octovalvis (Jacquin) P. H. Raven, Kew Bull. 15(3): 476, f. 6d-e, 8h.  1962.
Bas.: Oenothera octovalvis Jacquin (1760). 

Jiwòf dlo
Indigenous pantropical very common herb of swampy areas.
See image of fruits of the three Ludwigia species
This species has large, conspicuous flowers.
Local medicinal uses