Matelea campechiana (Standl.) Woodson Matelea campechiana (Standl.) Woodson in Ann. Missouri Bot. Gard. 28: 234. 1941 sec. Juárez-Jaimes & al. 2007=Vincetoxicum campechianum Standl. in Publ. Carnegie Inst. Wash. 461(4): 82-83. 1935 syn. sec. The Plant List 2013