Leaves linear-oblanceolate, 30--50 × 1.5--3 cm, glabrous, margin serrulate, apex acuminate. Scape 33--40 cm. Bracts 1--2 cm. Flowers usually paired; pedicel 0.8--1.1 cm, not articulate. Tepals white, linear, membranous; outer ones ca. 2 × 0.2 cm, 5-veined; inner ones ca. 2.2 × 0.2 cm, 3-veined. Filaments white, 0.8--0.9 cm. Anthers ca. 1.3 cm; basal appendages ca. 3 mm, apex acute. Style 1.4--1.6 cm. Fl. Jul--Aug.

* Grassy slopes; ca. 1800 m. SE Sichuan (Nanchuan Xian).