Bulb solitary, ovoid-globose to ovoid, 1--1.5 cm in diam.; tunic grayish brown, thinly leathery, apex splitting or laciniate. Leaves subequaling scape, 2--4 mm wide. Scape (12--)20--40 cm, terete, covered with leaf sheaths only at base. Spathe 2- or 3-valved, persistent. Umbel hemispheric to globose, densely many flowered. Pedicels subequal, equaling to slightly longer than perianth, ebracteolate. Perianth pale to bright yellow; outer segments oblong-ovate, boat-shaped, 5--6 × 2.5--3 mm; inner ones oblong-lanceolate, 7--8 × 2--2.5 mm, apex recurved. Filaments subulate, 1/2--2/3 as long as inner perianth segments, connate at base and adnate to perianth segments for ca. 1 mm. Ovary ovoid, with concave nectaries at base. Style not exserted. Fl. and fr. Jul--Sep.

* Sunny slopes, dry plains; 2900--3900 m. Gansu, Qinghai.