Oxygonum

Ny Oxygonum dia vondron-karazan-javamaniry mamony sy roa ravin-tsimoka ao amin' ny fianakaviana Polygonaceae ao amin' ny filaharana Caryophyllales. Misy karazany 38 eo ho eo sady teratany aty Afrika Atsinanana sy any amin' ny Saikinosy Arabo izy io.

 Karazana 
Inty ny lisitry ny karazana tamin' ny Oktobra 2025 araka ny Plants of the World Online:

 Oxygonum acetosella Welw.
 Oxygonum alatum Burch.
 Oxygonum altissimum Germish.
 Oxygonum annuum S.Ortiz & Paiva
 Oxygonum atriplicifolium (Meisn.) Martelli
 Oxygonum auriculatum R.A.Graham
 Oxygonum buchananii (Dammer) J.B.Gillett
 Oxygonum carnosum R.A.Graham
 Oxygonum delagoense Kuntze
 Oxygonum dregeanum Meisn.
 Oxygonum ellipticum R.A.Graham
 Oxygonum fruticosum Dammer ex Milne-Redh.
 Oxygonum gramineum R.A.Graham
 Oxygonum hastatum S.Ortiz
 Oxygonum hirtum Peter
 Oxygonum leptopus Mildbr.
 Oxygonum limbatum R.A.Graham
 Oxygonum lineare De Wild.
 Oxygonum litorale R.A.Graham
 Oxygonum lobatum R.A.Graham
 Oxygonum maculatum R.A.Graham
 Oxygonum magdalenae Dammer ex Peter
 Oxygonum ovalifolium Robyns & E.Petit
 Oxygonum overlaetii Robyns
 Oxygonum pachybasis Milne-Redh.
 Oxygonum pterocarpum Osborne & Vollesen
 Oxygonum quarrei De Wild.
 Oxygonum robustum Germish.
 Oxygonum sagittatum R.A.Graham
 Oxygonum salicifolium Dammer
 Oxygonum schliebenii Mildbr.
 Oxygonum sinuatum (Hochst. & Steud. ex Meisn.) Dammer
 Oxygonum stuhlmannii Dammer
 Oxygonum subfastigiatum R.A.Graham
 Oxygonum tenerum Milne-Redh.
 Oxygonum thulinianum S.Ortiz
 Oxygonum tristachyum (Baker) H.Perrier
 Oxygonum wittei Staner

 Jereo koa 

 Persicaria
 Rumex
 Polygonum

 Fagopyrum
 Duma