Agave cantala var. acuispina (Trel.) Gentry Agave cantala var. acuispina (Trel.) Gentry, Agaves Cont. N. Amer.: 569-571, f. 20.2-20.3, t. 20.1. 1982 sec. Espejo-Serna & López-Ferrari 2008=Agave acuispina Trel. in J. Wash. Acad. Sci. 15: 393. 1925 syn. sec. Espejo-Serna & López-Ferrari 2008