Allium nutans
Allium nutans, English common name Siberian chives or blue chives, is a species of onion native to European Russia, Kazakhstan, Mongolia, Tibet, Xinjiang, and Asiatic Russia. It grows in wet meadows and other damp locations.
Allium nutans has one or two bulbs up to in diameter. Scapes are winged and 2-angled, tall. Leaves are flat, tapering at both ends, wide at the widest spot, about half as long as the scapes. Umbels are spherical, with many pink to pale purple flowers.