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Agave horrida
Agave horrida Lemaire ex Jacobi [Accepted]
Agavaceae
12 28216 Agave horrida Lemaire ex Jacobi
E.A. von Regel, Gartenflora, vol. 23 : p. 89, fig. 2 (1874)
2 28216 Agave horrida Lemaire ex Jacobi
W. Curtis, Bot. Mag., vol. 106 [ser. 3, vol. 36]: t. 6511 (1880) [H. Thiselton-Dyer]
28220
Agave horrida Baker var. micracantha
Annual Rep. Missouri Bot. Gard., vol. 7 : t. 63, fig. 5-7 (1896)