Agave utahensis var. eborispina

Rosettes 1.5-3 dm. Leaves 15-30 × 1.5-3 cm; marginal teeth 6-12 (-15) mm; apical spine ivory white, stout, 10-20 cm. Scape 2-4 m.

Flowering late winter--spring. Calcareous outcrops with desert scrub; 1100--1900 m; Calif., Nev.