Cheilosa is a monotypic plant genus of the family Euphorbiaceae first described as a genus in 1826. Only one species is recognized: Cheilosa montana, native to Southeast Asia (Peninsular Malaysia, Borneo, Sumatra, Philippines, Java). formerly included moved to Trigonostemon Cheilosa whiteana Croizat, synonym of Trigonostemon whiteanus (Croizat) Airy Shaw References Monotypic Euphorbiaceae genera Acalyphoideae Flora of Malesia