Scientific name: Tabernaemontana bufalina Lour.English name: Vietnamese name: Lài trâu choải; Ly choải; ly lá nhỏOther name: Ervatamia bufalina (Lour.) Pichon; E. annamensis (Eberh. et Dub.) Pichon; Tabernaemontana pallida Pierre ex Pitard; Ervatamia pallida Pierre ex Spire; Tabernaemontana microphylla Pitard; T. jasminiflora Pitard; Ervatamia longopedicellata Ly; E. laxiflora Pichon;