= Chavannesia montana (M.R.Hend.) Pichon; Bull. Mus. Natl. Hist. Nat., Sér. 2, 20: 302 (1948)
= Cudicia gyrandra Buch.-Ham. ex Dillwyn; Rev. Hortus Malab. 41 (1839)
= Ecdysanthera annamensis Vernet; Bull. Écon. Indochine 7: 1189 (1904)
= Ecdysanthera brachiata A.DC.; Prodr. [A.P. de Candolle] 8: 443 (1844)
= Ecdysanthera cambodiensis Pierre; Rev. Cult. Colon. 11: 228 (1905)
= Ecdysanthera langbiani Vernet; Bull. Écon. Indochine 7: 1185 (1904)
= Ecdysanthera micrantha (Wall. ex G.Don) A.DC.; Prodr. [A.P. de Candolle] 8: 442-443 (1844)
= Ecdysanthera multiflora King & Gamble; J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 74(2): 482 (1908)
= Ecdysanthera utilis Hayata & Kawak.; Bot. Mag. (Tokyo) 20(231): 51-52 (1906)
= Echites brachiatus Wall.; Numer. List [Wallich] no. 1668 (1829), nomen
= Echites micrantha Wall. ex G.Don; Gen. Hist. 4: 75 (1837)
= Parabarium brachiatum (A.DC.) Pierre ex Spire; Contr. Apocyn. 37 (1905)
= Parabarium cambodiensis (Pierre) Pierre ex Spire; Contr. Apocyn. 38 (1905)
= Parabarium candollei Pierre ex Spire; Contr. Apocyn. 37 (1905)
= Parabarium chevalieri Pit.; Fl. Indo-Chine [P.H.Lecomte et al.] 3: 1212 (1933)
= Parabarium diu-do Dubard & Eberh.; Agric. Prat. Pays Chauds 13(1): 238 (1913)
= Parabarium diu-do var. longifolia Dubard & Eberh.; Agric. Prat. Pays Chauds 13(1): 240 (1913)
= Parabarium langbianii (Vernet) Pichon; Bull. Mus. Natl. Hist. Nat., Sér. 2, 20: 302 (1948)
= Parabarium micranthum (Wall. ex G.Don) Pierre; Caoutchouc Indo-Chine 38 (1906)
= Parabarium multiflorum (King & Gamble) Lý; Feddes Repert. 89(4): 260 (1978)
= Parabarium spireanum Pierre in Spire & A.Spire; Caoutchouc Indo-Chine 22 (1906)
= Parabarium utile (Hayata & Kawak.) Lý; Feddes Repert. 89(4): 261 (1978)
= Parabarium utile var. kerrii Lý; Feddes Repert. 89: 263 (1987)
= Parabarium vernetii Pierre ex Spire; Contr. Apocyn. 34 (1905)
= Urceola montana M.R.Hend.; Gard. Bull. Straits Settlem. 7: 108 (1933)