Synonyms: Cephaelis microcephala (heterotypic); Cephaelis tenuis; Nonatelia officinalis; Oribasia officinalis; Palicourea hassleriana; Palicourea officinalis; Palicourea swartziana; Patabea tenerior (homotypic); Psychotria barbiflora var. amazonica; Psychotria barbiflora var. minor; Psychotria erythrophylla; Psychotria hassleriana (homotypic); Psychotria hoffmannseggiana var. erythrophylla; Psychotria involucrata (heterotypic); Psychotria mesomorpha; Psychotria microcephala (heterotypic); Psychotria officinalis; Psychotria officinalis officinalis; Psychotria officinalis wilhelminensis; Psychotria tenerior (homotypic); Psychotria villosa (heterotypic); Uragoga erythrophylla; Uragoga mesomorpha; Uragoga officinalis (heterotypic); Uragoga tenerior (homotypic)