Herbs perennial, 10--20 cm tall. Rhizomes slender. Stems few branched; branches erect. Basal leaves crowded, sessile, lanceolate, 5--8 cm × 5--7 mm, both surfaces glabrous, midvein prominently elevated abaxially, inconspicuous adaxially, base long attenuate, somewhat dilated and semiamplexicaul, margin entire, apex acuminate; cauline leaves linear to linear-lanceolate, 4--7 cm × 3--3.5 mm, usually smaller distally on stem, apex acuminate. Flowers 1--4, terminal, erect; pedicel 1.5--2 cm, glabrous; bracts ca. 10, proximal ones linear, 5--6 × ca. 1 mm, apex acute, distal ones ovate, 1--1.2 cm × 3--4 mm, apex shortly cuspidate. Calyx green, tinged purple, cylindric, 2.8--3.2 cm × ca. 4 mm, many veined; teeth lanceolate, 6--8 × 1.2--1.5 mm, glabrous except margin ciliate, apex acute or acuminate. Petals 5--5.5 cm, glabrous; claw white, elongate linear, 3--3.5 cm × 0.3--2.5 mm; limb pink, ovate or orbicular-ovate, 1.8--2.2 × 1.2--1.5 cm, usually fimbriate for less than 1/4 its length. Stamens 4 or 5(or 6); filaments white, tinged pink distally, 3.5--4 cm; anthers oblong, 1--1.5 × ca. 0.5 mm, glabrous. Styles 2, distinct, linear, 3--3.5 cm, white pubescent. Seeds black, oblong, ca. 1.5 mm, apex apiculate. Fl. Nov.
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