Rhizomes globose. Leaves spreading, succulent, (14–)25–39 × 2.2–4.8 cm; blade light green, glaucous, spotted with green or brown round to oval markings up to 1 × 0.5 cm, channeled and undulate, or flat, broadly lanceolate, margins with teeth of several sizes, irregularly spaced, often retrorse. Scape 21.4–21.95 dm. Inflorescences crowded, 2.8–3.95 dm, bearing 27–46(–81) flowers. Flowers nearly erect, with cooked onion odor; tepals golden green adaxially, glaucous and green abaxially; perianth tube broadly funnelform-campanulate, 0.7–1.5(–2.2) cm; limb lobes recurved, usually longer than tube, 0.7–2.1 cm; filaments nearly erect at maturity, exserted by 4–6.6(–9.7) cm, bent near middle in bud; ovary 10–20 mm; style slightly longer than stamens; stigma pale green, clavate, 3-angled, furrowed apically, lobes not reflexed. Capsules cylindrical, 2.3–3.1 × 1.6–1.9 cm.

Flowering spring--mid summer. Growing separately or in colonies, in open areas, on clay soil; 0--100 m; Tex.; Mexico (Tamaulipas).