Description from Flora of China
Allium amabile Stapf; A. giraudiasii H. Léveillé; A. mairei H. Léveillé (loc. cit.: 384, not 339); A. pyrrhorrhizum Airy Shaw; A. pyrrhorrhizum var. leucorrhizum F. T. Wang & T. Tang; A. yunnanense Diels.
Bulbs usually clustered, cylindric, slightly thickened at base; tunic yellowish brown to grayish brown, fibrous, sometimes slightly reticulate. Leaves shorter than to subequaling scape, 1--1.5(--2) mm wide, semiterete-flat to semiterete or subterete, finely angled, angles scabrous. Scape usually tinged with purple, 10--30(--40) cm, terete, 2-angled, covered with leaf sheaths only at base. Spathe 1-valved, persistent. Umbels 2, each with a basal bract, or umbel 1 and ebracteate. Pedicels unequal, 1.5--2 × as long as perianth, rarely slightly longer, elongate in fruit, ebracteolate. Perianth pale red to purple-red; segments linear, narrowly oblong, oblanceolate-oblong, or elliptic-oblong, 8--12(--15) × 1.5--4 mm, apex obtuse or acute, sometimes conduplicate and reflexed; inner ones slightly narrower. Filaments subulate, equal, 1/2--2/3 as long as perianth segments, rarely shorter, connate at base and adnate to perianth segments for ca. 1 mm. Ovary constricted at both ends, without concave nectaries at base, apex rarely constricted into a beak. Style not exserted; stigma slightly 3-cleft. Fl. and fr. Aug--Oct. 2 n = 16*, 32*,
* Forests, slopes, meadows, rock crevices; 1200--4200 m. SW Sichuan, SE Xizang, Yunnan.