|Flowering garlic chives|
Allium tuberosum (garlic chives, Oriental garlic, Asian chives, Chinese chives, Chinese leek) is a species of onion native to southwestern parts of the Chinese province of Shanxi, and cultivated and naturalized elsewhere in Asia and around the world.
Allium tuberosum is a rhizomatous, clump-forming perennial plant growing from a small, elongated bulb (about 10 mm, 13⁄32 inch, across) that is tough and fibrous. Unlike either onion or garlic, it has strap-shaped leaves with triangular bases, about 1.5 to 8 mm (1⁄16 to 5⁄16 in) wide.  It produces many white flowers in a round cluster (umbel) on stalks 25 to 60 cm (10 to 24 in) tall. It grows in slowly expanding perennial clumps, but also readily sprouts from seed. In warmer areas (USDA zone 8 and warmer), garlic chives may remain green all year round. In cold areas (USDA zones 7 to 4b), leaves and stalks completely die back to the ground, and resprout from roots or rhizomes in the spring.
Originally described by Johan Peter Rottler, the species name was validly published by Curt Polycarp Joachim Sprengel in 1825. A. tuberosum is classified within Allium in subgenus Butomissa (Salisb.) N. Friesen, section Butomissa (Salisb.) Kamelin, a group consisting of only A. tuberosum and A. ramosum L., which have been variously regarded as either one or two genetic entities.
Distribution and habitat
A. tuberosum originated in the Siberian–Mongolian–North Chinese steppes, but is widely cultivated and naturalised, 'It has been reported as growing wild in scattered locations in the United States (Illinois, Michigan, Ohio, Nebraska, Alabama, Iowa, Arkansas, and Wisconsin). However, it is believed to be more widespread in North America because of the availability of seeds and seedlings of this species as an exotic herb and because of its high aggressiveness. This species is also widespread across much of mainland Europe and invasive in other areas of the world.
A late summer- to autumn-blooming plant, A. tuberosum is one of several Allium species known as wild onion and/or wild garlic that, in various parts of the world, such as Australia, are listed as noxious weeds or as invasive "serious high impact environmental and/or agricultural weeds that spread rapidly and often create monocultures".
Often grown as an ornamental plant in gardens, several cultivars are available. A. tuberosum is distinctive by blooming later than most native or naturalised species of Allium. It is cold-hardy to USDA zones 4–10 (−30 to +35 °F, −34 to 2 °C). Garlic chives are regarded as easy to grow in many conditions and may spread readily by seeds or can be intentionally propagated by dividing their clumps.
A number of varieties have been developed for either improved leaf (e.g. 'Shiva') or flower stem (e.g. 'Nien Hua') production. While the emphasis in Asia has been primarily culinary, in North America, the interest has been more as an ornamental. 'Monstrosum' is a giant ornamental cultivar.
|Hanyu Pinyin||jiǔ cài|
|Yale Romanization||gáu choi|
|Hokkien POJ||kú chhài|
Uses have included as ornamental plants, including cut and dried flowers, culinary herbs, and citation needed] Garlic chives have been widely cultivated for centuries in East Asia for their culinary value. The flat leaves, the stalks, and immature, unopened flower buds are used as flavouring. Another form is "blanched" by regrowing after cutting under cover to produce white-yellow leaves and a subtler flavor.[
Pronunciation of the Chinese names for A. tuberosum, 韭菜, vary between Mandarin Chinese and Cantonese, as well as other dialects. For instance, the green leaves are jiu cai, the flower stem jiu cai hua, and blanched leaves jiu huang in Mandarin, but gau tsoi (kow choi), gau tsoi fa, and gau wong in Cantonese, respectively. Other renderings include cuchay, kucai, kuchay, or kutsay. The leaves are used as a flavoring in a similar way to chives, scallions, or garlic, and are included as a stir fry ingredient. In China, they are often used to make dumplings with a combination of egg, shrimp, and pork. They are a common ingredient in Chinese jiǎozi dumplings and the Japanese and Korean equivalents. A Chinese flatbread similar to the scallion pancake may be made with garlic chives instead of scallions; such a pancake is called a jiucai bing (韭菜饼) or jiucai you bing (韭菜油饼). Garlic chives are also one of the main ingredients used with yi mein (E-Fu) dishes.
In Manipur and other northeastern states of India, it is grown and used as a substitute for garlic and onion in cooking and is known as maroi nakuppi in Manipuri.
In Japan, where the plant is known as nira (韮), it is used for both garlic and sweet flavours, in soups and salads, and Japanese Chinese dishes such as gyōza dumplings.
Known as buchu (부추), garlic chives are widely used in Korean cuisine. They can be eaten fresh as namul, pickled as kimchi and jangajji, and pan-fried in buchimgae (pancake). they are also one of the most common herbs served with gukbap (soup with rice), as well as a common ingredient in mandu (dumplings).
Buchu-jeon (garlic chive pancakes)
Buchu-geotjeori (garlic chive fresh kimchi)
Buchu-kimchi (garlic chive kimchi)
Chueo-tang (loach soup) served with garlic chives
In Nepal, cooks fry a curried vegetable dish of potatoes and A. tuberosum known as dunduko sag.
In Thailand, they are known as gui chai.
In Kazakhstan, where the plant has been introduced through cultivation by Dungan farmers and ties with neighboring China, garlic chives are known by a transliteration of their Mandarin Chinese name, djutsey (джуцей). Used in cooking, it is sometimes added as a filling to manty, samsa, yuta, and other typical dishes.
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