Agave sisalana Perrine Agave sisalana Perrine in Trans. Acad. Sci. St. Louis 3: 316, t. 2-4. 1875 sec. Espejo-Serna & López-Ferrari 2008=Agave rigida var. sisalana (Perrine) Engelm. in Bot. Gaz. 3: 17. 1878 syn. sec. Espejo-Serna & López-Ferrari 2008