Synonyms: Bryonia arguta (homotypic); Bryonia johnstonii; Bryonia mucronata (homotypic); Cucumis maderaspatanus (heterotypic); Karivia samoensis var. vitiensis; Karivia samoensis vitiensis; Melothria baueriana (homotypic); Melothria carnosula; Melothria grayana; Melothria kelungensis; Melothria lobata; Melothria mucronata (homotypic); Melothria rechingerae; Melothria rechingeri; Pilogyne baueriana; Pilogyne mucronata; Pilogyne zehneria; Zehneria baueriana; Zehneria grayana; Zehneria grayana var. vitiensis; Zehneria kelungensis