Grows in bundles of several units. Its tubular leaves are basal, forming a rosette springing erect or dispersed from underground bulbs and can reach 45 cm long, are dark green and glabrous surface. The bulb reaches 3 or 4 inches long and is protected by a membranous layer.
Among also leaves develop one or more flower stems, more erect and longer than the sheets themselves. Usually lack of leaves but may possess one pair, cauline; at its end an umbel springs spheroidal pedicellate flowers densely populated. They reach a centimeter long, with six tepals lanceolate pink or white, with a purple line that crosses longitudinal. Both the flowers and the stems have a distinctive aroma from the onions contain allicin.
When choosing them, it is important to emit a good aroma. This vegetable is especially suitable for working in oil, as its flavor is milder than that of onion. Thus, it is most suitable for any kind of salad.