Marah macrocarpus (Greene) Dunn var. macrocarpus in Bull. Misc. Inform. Kew 1913: 152. 1913 sec. Lira & Rodríguez-Arévalo 2006
- =Megarrhiza californica Torr., Botany of California 1. 1876 syn. sec. Lira & Rodríguez-Arévalo 2006
- =Echinocystis macrocarpa Greene in Bull. Calif. Acad. Sci. 1(3): 188-189. 1885 syn. sec. Lira & Rodríguez-Arévalo 2006
- =Micrampelis macrocarpa (Greene) Greene in Pittonia 2(9): 129. 1890 syn. sec. Lira & Rodríguez-Arévalo 2006
- =Micrampelis leptocarpa Greene in Pittonia 2: 282. 1892 syn. sec. Lira & Rodríguez-Arévalo 2006
- =Echinocystis macrocarpa var. leptocarpa (Greene) Parish in Muhlenbergia 3(8): 125. 1907 syn. sec. Lira & Rodríguez-Arévalo 2006
- =Marah leptocarpa Greene in Leafl. Bot. Observ. Crit. 2(2): 36. 1910 syn. sec. Lira & Rodríguez-Arévalo 2006