Allium siphonanthum is a plant species endemic to Yunnan Province in southern China. It grows on hillsides at an elevation of approximately 2800 m.Flora of China v 24 p 182, Allium siphonanthum

Allium siphonanthum has bulbs up to 15 mm across. Scape is up to 60 cm tall, round in cross-section. Leaves are long and very narrow, about the same length as the scape but only about 3 mm across, often drooping under its own weight. Umbel is spherical, with a dense cluster of many reddish-purple flowers.line drawing of Allium siphonanthum, Flora of China Illustrations vol. 24, fig. 184, 1-4 Wang, Fa Tsuan & Tang, T. (Chin). 1980. Flora Reipublicae Popularis Sinicae 14: 284, pl. 41.

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