Bulb cylindric, slightly thickened at base, 0.8--1 cm in diam.; tunic dark brown, reticulate. Leaves subequaling scape, 3--7 mm wide, apex long acuminate. Scape 25--30 cm, terete, angled, covered with leaf sheaths only at base. Spathe 1-valved, persistent. Umbel few flowered. Pedicels very unequal, 2--4 × as long as perianth, ebracteolate. Perianth purple-blue; outer segments narrowly ovate, 7--7.5 × 2--2.7 mm; inner ones narrowly oblong, ca. 8 × 2.5--2.7 mm. Filaments slightly longer than perianth segments, connate at base and adnate to perianth segments; outer ones subulate; inner ones broadened for ca. 2.5 mm and oblong at base, 1-toothed on 1 or both sides. Ovary obovoid-globose, with concave nectaries covered by hoodlike projections at base. Style exserted. Fl. Aug.

* Slopes; 1600--2300 m. E Sichuan (Chengkou Xian, Nanchuan Xian).