Bulb solitary or clustered, cylindric, 0.2--0.4 cm in diam.; tunic brown, subreticulate. Leaves linear, usually twisted when dried, shorter or slightly longer than scape, 1.5--3 mm wide, abaxially keeled. Scape 17--55 cm, terete, covered with leaf sheaths only at base. Spathe (1 or)2(or 3)-valved, persistent. Umbel hemispheric, densely many flowered. Pedicels subequal, shorter to longer than perianth, ebracteolate. Perianth blue; segments ovate, 7.5--10 × 3--4 mm, margin irregularly denticulate or (on outer segments) entire, apex acuminate. Filaments subulate, ca. 1/2 as long as perianth segments, connate at base and adnate to perianth segments; inner ones sometimes broadened at base, entire. Ovary subglobose, with concave nectaries covered by hoodlike projections at base. Style equaling to slightly longer than ovary, not exserted; stigma slightly 3-cleft. Fl. and fr. Aug--Sep.

* Forest margins, meadows in forests, slopes; 2800--3500 m. NW Sichuan.