Description from Flora of China
Allium lancipetalum Y. P. Hsu; A. odorum Linnaeus; A. potaninii Regel; A. tataricum Linnaeus f.; A. weichanicum Palibin.
Bulbs clustered, subcylindric; tunic dull yellow to yellowish brown, reticulate to subreticulate. Leaves linear, shorter than scape, 1.5--8 mm wide, 3-angled, 1-keeled abaxially, fistulose, margin and angles scabrous-denticulate or smooth. Scape 25--60 cm, terete, obscurely angled, covered with leaf sheaths only at base. Spathe 1- or 2-valved. Umbel hemispheric to subglobose, many flowered. Pedicels subequal, 2--4 × as long as perianth, bracteolate and several covered with a common bract at base. Perianth white, sometimes slightly tinged with pale red; segments with pale red midvein; outer ones oblong-ovate to oblong-lanceolate, usually slightly narrower than inner, (4.5--)5.5--9(--11) × 1.5--2.9 mm; inner ones oblong-obovate, (4.5--)5.5--9(--11) × 1.8--3.1 mm. Filaments narrowly triangular, equal, 1/2--3/4 as long as perianth segments, connate at base and adnate to perianth segments; inner ones slightly wider than outer at base. Ovary obconical-globose, minutely tuberculate, without concave nectaries at base. Fl. and fr. Jun--Sep. 2 n = 16*, 32*.
Sunny hills, pastures; 500--2100 m. Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Xinjiang [Kazakhstan, Mongolia, Russia].