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The onion (Allium cepa L., from Latin cepa "onion"), additionally recognized as the bulb onion or frequent onion, is a vegetable that is the most broadly cultivated species of the genus Allium. Its shut family consist of the garlic, scallion, shallot, leek, chive, and Chinese onion. This genus additionally includes countless different species variously referred to as onions and cultivated for food, such as the Japanese bunching onion (Allium fistulosum), the tree onion (A. ×proliferum), and the Canada onion (Allium canadense). The identify "wild onion" is utilized to a range of Allium species, however A. cepa is completely recognised from cultivation. Its ancestral wild unique structure is no longer known, though escapes from cultivation have turn out to be mounted in some regions. The onion is most regularly a biennial or a perennial plant, however is typically handled as an annual and harvested in its first developing season.
The onion plant has a fan of hollow, bluish-green leaves and its bulb at the base of the plant starts to swell when a sure day-length is reached. The bulbs are composed of shortened, compressed, underground stems surrounded via fleshy modified scale (leaves) that envelop a central bud at the tip of the stem. In the autumn (or in spring, in the case of overwintering onions), the foliage dies down and the outer layers of the bulb emerge as dry and brittle. The crop is harvested and dried and the onions are prepared for use or storage. The crop is susceptible to assault through a variety of pests and diseases, mainly the onion fly, the onion eelworm, and a range of fungi which can purpose rotting. Some sorts of A. cepa, such as shallots and potato onions, produce a couple of bulbs. Onions are cultivated and used round the world. As a meals item, they are normally served cooked, as a vegetable or phase of a organized savoury dish, however can additionally be eaten uncooked or used to make pickles or chutneys. They are pungent when chopped and incorporate positive chemical components which irritate the eyes.

In this sub category you can download free PNG images: Onion Vegetables. In this category "Onion" we have 65 free PNG images with transparent background.

  • Red Onion Transparent Image PNG Image

    Red Onion Transparent Image
    Format: PNG
    Resolution: 400x400
    Size: 125.8KB
    Downloads: 294
  • Onion Png Image PNG Image

    Onion Png Image
    Format: PNG
    Resolution: 200x200
    Size: 63.1KB
    Downloads: 284
  • Onion Vector PNG Image

    Onion Vector
    Format: PNG
    Resolution: 800x800
    Size: 356.6KB
    Downloads: 275
  • Cuisine Whopper Hamburger King Food Veggie Fast PNG Image

    Cuisine Whopper Hamburger King Food Veggie Fast
    Format: PNG
    Resolution: 680x500
    Size: 446.1KB
    Downloads: 252
  • Web Onion Icons Tor Computer Routing .Onion PNG Image

    Web Onion Icons Tor Computer Routing .Onion
    Format: PNG
    Resolution: 512x512
    Size: 166.2KB
    Downloads: 252