| Allium asarense | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Amaryllidaceae |
| Subfamily: | Allioideae |
| Genus: | Allium |
| Species: | A. asarense |
| Binomial name | |
| Allium asarense | |
Allium asarense is a species of wild onion in the family Amaryllidaceae, native to north-central Iran. [1] Out of the approximately 1000 species of Allium it and Allium vavilovii are the closest known relatives of the common onion Allium cepa . [2]
Allium asarense is endemic to Iran, where it is found only in the north-central region of the country. [3]
This species grows in limestone, rocky slopes where it inhabits habitats such as cliffs and mountain peaks. [4]
It naturally grows at altitudes of 2000 metres above sea level. [4]
The shallot is a botanical variety of the onion. Until 2010, the shallot was classified as a separate species, Allium ascalonicum, a name that is a synonym of Allium cepa, the species name of the onion. A. cepa is the correct name for the shallot species.
The 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 2010. Its close relatives include garlic, scallion, leek, and chive.
Scallions are vegetables derived from various species in the genus Allium. Scallions generally have a milder taste than most onions and their close relatives include garlic, shallot, leek, chive, and Chinese onions.
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 tree onion 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 the Welsh onion (A. fistulosum). However, some sources may still treat the tree onion as A. cepa var. proliferum or A. cepa Proliferum Group.
Allium canadense, the Canada onion, Canadian garlic, wild garlic, meadow garlic and wild onion is a perennial plant native to eastern North America 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. The plant is also reportedly naturalized in Cuba.
The pearl onion, also known as button, baby or silverskin onions in the UK, is a close relative of the leek, and may be distinguished from common onions by having only a single storage leaf, similar to cloves of garlic. In French they are known as oignon grelot. One English-speaking reference also mentions the term petit poireau antillais.
Allium nigrum, common name black garlic, broad-leaved leek, or broadleaf garlic, is a Middle Eastern species of wild onion. It lacks the onion or garlic scent shared by most of the other species in the group. The species is native to Turkey, Cyprus, Syria, Lebanon, and Israel but cultivated as an ornamental in many other places. It has become naturalized in some regions, including parts of the United States.
Leveillula taurica is an obligate fungal pathogen, from the phylum Ascomycota, which causes powdery mildew on onion. This disease prefers warm, dry environments. It is rare in the United States, and is currently restricted to western states. Globally, it is also a minor problem with limited occurrences in the Middle East, Europe, and South America. L. taurica causes powdery mildew of onions, but is also known to infect other allium, solanaceous, and cucurbit species. The disease has appeared in parts of the Middle East, the Mediterranean, and South and North America. Currently, it is not a cause for major concern in the U.S. and throughout the world, as its geographic extent is sparse. In addition, it is relatively easy to control through basic sanitation and reducing water stress.
Allium senescens, commonly called aging chive, German garlic, or broadleaf chives, is a species of flowering plant in the genus Allium.
Allium hollandicum, the Persian onion or Dutch garlic, is a species of flowering plant native to Iran and Kyrgyzstan but widely cultivated as an ornamental because of its umbels of attractive purple flowers. It is reportedly naturalized in Saint Louis County, Minnesota.
Allium caspium is a species of onions named for the Caspian Sea. It is native to the southern parts of European Russia, as well as central and southwestern Asia
Allium abbasii is a species of onion native to Iran.
Allium materculae is a species of onion native to Turkey, Iran, and Russia.
Allium akaka is a species of onion native to Iran.
Allium is a genus of monocotyledonous flowering plants that includes hundreds of species, including the cultivated onion, garlic, scallion, shallot, leek, and chives. The generic name Allium is the Latin word for garlic, and the type species for the genus is Allium sativum which means "cultivated garlic".
The precise taxonomy of the genus Allium is still poorly understood with incorrect descriptions being widespread. With over 850 species distributed over the Northern hemisphere Allium is the sole genus in the Allieae, one of four tribes of subfamily Allioideae (Amaryllidaceae). New species continue to be described and Allium is both highly variable and one of the largest monocotyledonous genera, but the precise taxonomy of Allium is poorly understood, with incorrect descriptions being widespread. The difficulties arise from the fact that the genus displays considerable polymorphism and has adapted to a wide variety of habitats. Furthermore, traditional classications had been based on homoplasious characteristics. However, the genus has been shown to be monophyletic, containing three major clades, although some proposed subgenera are not. Some progress is being made using molecular phylogenetic methods, and the internal transcribed spacer (ITS) region, including the 5.8S rDNA and the two spacers ITS1 and ITS2, is one of the more commonly used markers in the study of the differentiation of the Allium species.
Allium vavilovii is a species of wild onion in the family Amaryllidaceae, native to southern Turkmenistan and northeastern Iran. Out of the approximately 1000 species of Allium it and Allium asarense are the closest known relatives of the common onion Allium cepa.