Agave attennuata

Agave attennuata (attenuated) is a species of Agave.

Background
Flower greenish-yellow, 2in. long; pedicels about 1/4in. long, on a dense spike, 6ft. to 8ft. long, and 6in. in diameter; bracts overtopping the perianth. leaves ten to twenty,  in a dense rosette at the top of the stem, oblong-spathulate, 2ft to 2 1/2ft. long, 8in. to 9in. broad two-thirds of the way up, narrowed to 2 1/2in. to 3in. above the base, persistently glaucous,  one of the most fleshy of all in texture; face rather concave when young; tip not pungent, edge quite entire. Stem 4ft. to 7ft. high, 3in. to 4in. thick. Mexico, 183?. A most distinct species.