Yucca rostrata Engelm. ex Trel., Annual Rep. Missouri Bot. Gard. 13: 68-71, t. 36, f. 2, t. 40-42, t. 84, f. 3 y t. 93, f. 2. 1902 sec. Espejo-Serna & López-Ferrari 2008
- =Yucca rostrata var. linearis Trel. in Annual Rep. Missouri Bot. Gard. 18: 226. 1907 syn. sec. Espejo-Serna & López-Ferrari 2008