Agave Seemanni

Agave Seemanni (Seemann's) is a species of Agave.

Background
Flower unknown. leaves twenty in a sessile rosette, 1ft. to 1 1/2ft, broad, oblong-spathulate, 6in. to 9in. long, 3in. to 3 1/2in. broad at the middle, narrowed to 2in. above the  dilated base, slightly glaucous; face flat, except close to the top; terminal spine pungent, dark brown, 1/2in. long; side prickles large, moderately close, slightly curved upwards or downwards. Guatemala, 1868. There are two or three garden forms of this species.