Malvaviscus arboreus var. mexicanus Schltdl. in Linnaea 11(3): 359–360. 1837 sec. Fryxell 1988
- =Malvaviscus grandiflorus Kunth, Nov. Gen. Sp. (quarto ed.) 5: 286-287. 1822 ["1821"] syn. sec. Fryxell 1988
- =Malvaviscus sepium Schltdl. in Linnaea 11: 361. 1837 syn. sec. Fryxell 1988
- =Malvaviscus rivularis Brandegee in Zoe 5: 211. 1905 syn. sec. Fryxell 1988
- =Malvaviscus conzattii Greenm. in Publ. Field Mus. Nat. Hist., Bot. Ser. 2(8): 333. 1912 syn. sec. Fryxell 1988
- =Malvaviscus arboreus var. sepium (Schltdl.) Schery in Ann. Missouri Bot. Gard. 29: 226. 1942 syn. sec. Fryxell 1988