Momordica is a genus of about 60 species of annual or perennial climbers herbaceous or rarely small shrubs belonging to the family Cucurbitaceae, natives of tropical and subtropical Africa and Asia and Australia. Most species produce floral oils and are visited by specialist pollinators in the apid tribe Ctenoplectrini. A molecular phylogeny that includes all species is available (Schaefer and Renner, 2010).