Metastelma chiapense A. Gray in Proc. Amer. Acad. Arts 21(2): 397. 1886 sec. Juárez-Jaimes & al. 2008
- =Metastelma selerianum Schltr. in Bull. Herb. Boissier, sér. 2, 6: 841. 1906 syn. sec. ???
- =Metastelma collinum S.F. Blake in Contr. U.S. Natl. Herb. 24(1): 19. 1922 syn. sec. The Plant List 2013
- =Cynanchum chiapense (A. Gray) Standl. & Steyerm. in Publ. Field Mus. Nat. Hist., Bot. Ser. 23(5): 226. 1947 syn. sec. ???