The Three-cornered leek (Allium triquetrum) belongs to the Liliaceae (the Lily family). It is a perennial herb that is native to south-western Europe, north-western Africa, Madeira and the Canary Islands. It is also naturallized to the British Isles, New Zealand, Turkey, Australia, North and South America. This herb grows in meadows, woodland clearings, on river banks and roadside, and it can reach 20-50 cm in height. The stems are concavely triangular in cross-section. The leaves are 2-3 narrow, linear and have a distinct onion smell when crushed. The white, but with a strong green line flowers bloom in umbels atop of stems from January to May.