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The tree onion (Allium × proliferum) is a perennial plant similar to the common onion (A. cepa), but with a cluster of bulblets where a normal onion would have flowers. Tree onions are also known as topsetting onions, walking onions, or Egyptian onions. Genomic evidence has conclusively shown that they are a diploid hybrid of the shallot and ...
While some bulbs are poisonous or at least inedible to humans, [example needed] many bulbs – especially those of the onion family (leeks, garlic, chives, shallots) – are grown both privately and commercially as food crops. The onion especially provides the basis for a huge variety of dishes.
An onion (Allium cepa L., from Latin cepa meaning "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. The shallot is a botanical variety of the onion which was classified as a separate species until 2011.
Allium fistulosum, the Welsh onion, also commonly called bunching onion, long green onion, Japanese bunching onion, and spring onion, is a species of perennial plant, often considered to be a kind of scallion. The species is very similar in taste and odor to the related common onion, Allium cepa, and hybrids between the two (tree onions) exist.
The bulbs are solitary or clustered and tunicate and the plants are perennialized by the bulbs reforming annually from the base of the old bulbs, or are produced on the ends of rhizomes or, in a few species, at the ends of stolons. [21] A small number of species have tuberous roots. The bulbs' outer coats are commonly brown or grey, with a ...
Allium canadense, the Canada onion, Canadian garlic, wild garlic, meadow garlic and wild onion [6] is a perennial plant native to eastern North America [a] from Texas to Florida to New Brunswick to Montana. The species is also cultivated in other regions as an ornamental and as a garden culinary herb. [7] The plant is also reportedly ...
Longitudinal section through bulb Cross section of onion bulb. The bulb's leaf bases, also known as scales, generally do not support leaves, but contain food reserves to enable the plant to survive adverse conditions. At the center of the bulb is a vegetative growing point or an unexpanded flowering shoot.
Allium cernuum is a herbaceous perennial growing from an unsheathed elongated conical bulb which gradually tapers directly into several keeled (thin and flat) grass-like leaves, 2–4 millimetres (3 ⁄ 32 – 5 ⁄ 32 inch) in width.