Clades:
Polygonales;
Caryophyllidae;
Asteranae;
Angiospermae;
Plants.
Genera: Bistorta, Cephalophilon, Koenigia, Oxygonum, Persicaria.TaxonomyPersicarioideae is a subfamily in
Polygonaceae. It consist mostly of the extensive genus Persicaria.
Persicarioideae is placed in
Subphase 5 in
Plant theory 2. The inclusion of Oxygonum is questionable.