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 121 free PNG images with transparent background.

  • Onion Half HD Image Free PNG Image
    Onion Half HD Image Free
    Format: PNG
    Resolution: 530x600
    Size: 247.7KB
    Downloads: 52
  • Onion Free PNG HQ PNG Image
    Onion Free PNG HQ
    Format: PNG
    Resolution: 941x1022
    Size: 1.4MB
    Downloads: 81
  • Pic Onion Download Free Image PNG Image
    Pic Onion Download Free Image
    Format: PNG
    Resolution: 1454x960
    Size: 1.5MB
    Downloads: 44
  • Slice Onion Free PNG HQ PNG Image
    Slice Onion Free PNG HQ
    Format: PNG
    Resolution: 741x489
    Size: 496.5KB
    Downloads: 54
  • Onion Free Transparent Image HD PNG Image
    Onion Free Transparent Image HD
    Format: PNG
    Resolution: 1000x1000
    Size: 331.2KB
    Downloads: 73
  • Onion Png Image Download Picture PNG Image
    Onion Png Image Download Picture
    Format: PNG
    Resolution: 800x712
    Size: 110.9KB
    Downloads: 671
  • Onion Png Image PNG Image
    Onion Png Image
    Format: PNG
    Resolution: 3500x2738
    Size: 2.2MB
    Downloads: 2,127
  • Onion Png Image Download Picture PNG Image
    Onion Png Image Download Picture
    Format: PNG
    Resolution: 200x174
    Size: 18.8KB
    Downloads: 911
  • Onion Png Image PNG Image
    Onion Png Image
    Format: PNG
    Resolution: 1841x2800
    Size: 2.0MB
    Downloads: 424
  • Onion Png Image Download Picture PNG Image
    Onion Png Image Download Picture
    Format: PNG
    Resolution: 400x400
    Size: 39.5KB
    Downloads: 539
  • Onion Png Image Download Picture PNG Image
    Onion Png Image Download Picture
    Format: PNG
    Resolution: 470x500
    Size: 99.3KB
    Downloads: 429
  • Onion Png Image Download Picture PNG Image
    Onion Png Image Download Picture
    Format: PNG
    Resolution: 1602x1200
    Size: 852.7KB
    Downloads: 441
  • Onion Png Image Download Picture PNG Image
    Onion Png Image Download Picture
    Format: PNG
    Resolution: 2822x2208
    Size: 1.5MB
    Downloads: 491
  • Onion Free Png Image PNG Image
    Onion Free Png Image
    Format: PNG
    Resolution: 550x500
    Size: 296.5KB
    Downloads: 614
  • Onion Free Download Png PNG Image
    Onion Free Download Png
    Format: PNG
    Resolution: 1602x1200
    Size: 854.0KB
    Downloads: 310
  • Onion Transparent PNG Image
    Onion Transparent
    Format: PNG
    Resolution: 432x379
    Size: 311.6KB
    Downloads: 340
  • Red Onion Transparent Background PNG Image
    Red Onion Transparent Background
    Format: PNG
    Resolution: 410x242
    Size: 115.2KB
    Downloads: 296
  • White Onion PNG Image
    White Onion
    Format: PNG
    Resolution: 500x319
    Size: 155.1KB
    Downloads: 370
  • Green Onion Transparent Image PNG Image
    Green Onion Transparent Image
    Format: PNG
    Resolution: 550x448
    Size: 177.7KB
    Downloads: 341
  • Onion Slice Image PNG Image
    Onion Slice Image
    Format: PNG
    Resolution: 420x420
    Size: 370.2KB
    Downloads: 365

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