Onion

  • Onion_img_0
    Onion @ Tsukuba Botanical Garden
  • Onion_img_1
    Onion @ Tsukuba Botanical Garden

Basic information

Flower Name
Onion
Formal Name
Allium cepa
Alias
Onion
Habitat
Central Asia such as northwest India
Morph
Perennial rhizome vegetables

Comment

What is Onion

Onion or Tamanegi (scientific name: Allium cepa) is native to Central Asia such as northwest India, and is a two-year grass or perennial plant of the family Amaryllidaceae. Rhizome vegetables to eat bulbs. In the early summer, the spherical scattering inflorescence stretching from the tip of the flower stalk will bloom by gathering many small white flowers such as bamboo shoots. Small flowers are six fpetals and white streaks have green streaks. Onions are sold as shipped once dried and stored for about a month after harvesting. When onion is cut,, there is a component called allylpropion, so tears come out because the lacrimal glands are stimulated. Because it sweetens when heated, it is used for curry dishes, Western-style hot dishes and onion soup. The new and fresh onion is one which was shipped directly as it was harvested in spring, has much moisture and little irritation, so it can be eaten raw vegetable salad or onion slice. Onion is nontoxic to humans, however giving food containing onions such as beef bowl to an animal such as a dog causes strength anemia and may even die.

Generic name: Onion, Scientific name: Allium cepa L., aka:Tamanegi, Place of origin: Central Asia, Lifestyle type: Perennial plant, plant height: 20 to 30 cm, leaves: alternate, inflorescence: scattering inflorescence, flower color: white, flower size: 0.2 to 0.5 cm, flowering stage: early June, bulb shape: Spheroid, bulbous stem: 10 cm, utilization site: leaf (bulb leaves), fruit type: fruit.

Detailed information

Order
Asparagales
Family
Amaryllidaceae
Genus
Allium
Species
A. cepa
Flower type
Actinomorphic Flower
Flower array
Umbel
Petal shape
Infundibular
Leaf type
Linear
Leaf edge
Entire Fringe
Flowering place
field
Color
White
Season
Jun
Height
20 ~ 30 [cm]
Diameter
0.2 ~ 0.5

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