Caudices simple, 0.1–20 × 2–8 cm, axillary branches absent. Leaves: rosettes solitary, not in clumps, 20–45-leaved, 10–30 cm diam.; blade green or, rarely, pale greenish white, obovate to oblong-oblanceolate, 6–17 × 3–7 cm, 1–4 mm thick, base 0.2–0.5 cm wide, apex acuminate, surfaces usually not farinose, not glaucous. Inflorescences: cyme 3–5-branched, densely rounded or becoming flat-topped; branches not twisted (flowers on topside), 1–2 times bifurcate, (5–25 cm diam.); cincinni ca. 3, 5–25-flowered, circinate, 2.5–13 cm; floral shoots 15–35 × 0.6–1 cm; leaves 20–35, spreading or deflexed, triangular-lanceolate, 30–70 × 10–20 mm, apex acute. Pedicels erect, not bent in fruit, 2–6 mm. Flowers: calyx 6–9 × 4–5 mm; petals connate 1.5–3.5 mm, pale yellow to white, 8–12 × 2.5–3.5 mm, apex acute, tips straight; pistils connivent, erect. Unripe follicles erect. 2n = 34.
