Rhizomes many-branched, forming tufts, with fibrous remains of old leaves at nodes, slender, 0.6–0.8 cm diam.; roots few, fibrous. Stems simple, solid, almost absent or to 2.5 dm. Leaves: basal longer than stem, blade light green, finely veined, narrowly linear, 3–4 dm × 0.4–0.6 cm, glaucous, margins not thickened, apex acute; cauline 1–2, spreading, sheathing for about 1/2 length, foliaceous, blade not inflated, 0.7–1 dm. Inflorescence units (1–)2-flowered; spathes nearly opposite, connivent, linear-lanceolate, 4–9.5 cm × 4–6 mm, subequal or outer longer. Flowers: perianth indigo, purple, lavender, white, cream, or yellow; floral tube linear, gradually dilating apically, 6 cm; sepals usually with fine, dark veins basally, becoming coarser on claw, oblanceolate or obovate, 3.9–7 × 2 cm, base abruptly attenuate into claw; petals oblanceolate, 3.5–6 × 0.5–1.6 cm, base gradually attenuate; ovary ovoid, ca. 1 cm; style 2–3.5 cm, crests overlapping, reflexed, semiovate, 0.8–1.8 cm, margins denticulate; stigmas triangular, margins entire; pedicel 1.5–2 cm. Capsules oblong to ovoid, somewhat 3-angled in cross section, 2.5–3 cm. Seeds dark brown, angular, finely wrinkled. 2n = 40.
Can be grown by seedlings. Seeds needs stratification.
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