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Polygonaceae family

Persicaria glabra
(Willdenow) Gómez de la Maza y Jiménez
, Anales Inst. Segunda Enseñ. 2: 278.  1896.
Bas.: Polygonum glabrum Willdenow (1799).
Syn.: Polygonum densiflorum Meisner (1855). 


Indigenous herb of fresh-water swamps at low elevations.
Herbarium specimen from Fond D’Or, Dennery, but I have not found this species.
Widely naturalized thoughout tropics and subtropics, exact native range obscure.