Synonyms: Ervatamia annamensis; Ervatamia bufalina (homotypic); Ervatamia celastroides; Ervatamia ceratocarpa; Ervatamia chengkiangensis; Ervatamia hainanensis; Ervatamia hoabinhensis; Ervatamia jasminoides (heterotypic); Ervatamia laxiflora (homotypic); Ervatamia longipedicellata; Ervatamia luensis (homotypic); Ervatamia microphylla; Ervatamia subcapitata; Tabernaemontana annamensis; Tabernaemontana celastroides; Tabernaemontana ceratocarpa; Tabernaemontana chengkiangensis; Tabernaemontana hainanensis; Tabernaemontana hoabinhensis; Tabernaemontana jasminiflora; Tabernaemontana luensis (homotypic); Tabernaemontana microphylla; Tabernaemontana pallida (heterotypic); Tabernaemontana subcapitata (heterotypic)