Synonyms
Viola patrinii var. triangularis Franch. & Sav.
Viola boninensis Nakai
Viola niijimensis Nakai
Viola mandshurica f. niijimensis (Nakai) F.Maek. & T.Hashim.
Viola mandshurica var. boninensis (Nakai) M.Mizush.
Viola mandshurica f. pubigera Hiyama ex F.Maek.