Roots elongate, relatively thick. Bulbs clustered, cylindric, attached to horizontal rhizome; tunic grayish black, thinly leathery, laciniate or fibrous. Leaves broadly linear, shorter than scape, 4--10 mm wide, midvein distinct. Scape lateral, (14--)20--30 cm, terete, narrowly 2-winged, covered with leaf sheaths only at base. Spathe 2-valved, usually persistent. Umbel broomlike, laxly few flowered. Pedicels unequal, elongate at anthesis, 1.5--2 × as long as perianth, ebracteolate. Perianth white, spreading funnelform; segments narrowly oblong to oblong-lanceolate, rarely ovate, (4--)6--8 × 1.7--2 mm; inner ones slightly longer than outer. Filaments 1/3--1/2 as long as perianth segments, base broadly triangular, connate and adnate to perianth segments, apex attenuate, subulate; inner ones slightly shorter than outer. Ovary obovoid, smooth; ovules 1 per locule. Style much shorter than ovary, sometimes absent; stigma 3-cleft. Fl. and fr. end of May--Aug.
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An onion herb. There is a cluster of bulbs. They are cylinder shaped and attached to the horizontal rhizome. The leaves are broadly linear. They are 4-10 mm wide. The flower stalk is 20-30 cm long It has 2 narrow wings.
It is a temperate plant. It grows in forests, damp slopes and stream banks between 3,000-4,000 m above sea level. It grows in Sichaun and Yunnan in China.
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