Bulbs variable, subrhizomatous to ± ovoid, 3–10 × 4.4–11.7 cm, 0.3–0.9(–1.4) times taller than long; scales variable, usually notched with 2(–3) poorly defined segments, some clearly 2-segmented or unsegmented, longest 3.3–11.9 cm. Stems to 1.7 m. Leaves in 1–8 whorls or partial whorls, 3–15 leaves per whorl, usually ascending and occasionally nearly clasping stem, rarely horizontal and drooping at tips, 3.7–12.3 × 0.9–4.7 cm, 2–6.5 times longer than wide; margins undulate. Flowers: sepals and petals recurved 2/3 along length from base, mostly or entirely white but aging deep pink or lavender, sometimes with short yellowish stripe extending from basal median nectaries; sepals usually if obscurely purplish adaxially, (6.1–)6.7–9.5 × 0.9–1.6 cm; petals (6.1–)6.6–9.5 × 1.1–1.9 cm; anthers cream, sometimes spotted minutely with magenta on abaxial surface, becoming yellow; pollen pale yellow to occasionally yellow. Capsules usually with 6 longitudinal ridges, 2.8–5.8 × 1.6–2.9 cm, 1.3–2.3 times longer than wide. Seeds 144–231. 2n = 24.
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