Herbs perennial, 50--90 cm tall, subglabrous. Roots caespitose, pale yellow, narrowly fusiform, slightly fleshy. Stem solitary, rarely sparsely caespitose. Leaves ovate-lanceolate, (5--)8--15 × (1--)2.5 cm, both surfaces subglabrous, ciliate at margin, base cuneate, apex acuminate. Dichasium several flowered. Pedicel very short, sparsely pubescent; bracts lanceolate, herbaceous, ciliate at margin. Flowers 4--5 cm in diam. Calyx tubular, (2.5--)3--3.5 cm × 3.5--5 mm, veins prominent, glabrous, teeth 8--10 mm. Petal limb salmon-pink, obovate, (1.5--)2--2.5 cm, unlobed, apex irregularly incised-dentate; claw not exceeding calyx. Stamens included. Androgynophore 1--1.5 cm. Capsule narrowly ellipsoid, ca. 2 cm. Fl. Jun--Jul, fr. Aug--Sep.
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