洋葱Allium cepa

中文名(Chinese Name):洋葱
学名(Scientific Name):Allium cepa Linn.
英文名(English Common Name):garden onion
别名(Chinese Common Name):
异名Synonym):Allium cepa var. aggregatum L.  Cepa alba P.Renault  Ascalonicum sativum P.Renault  Cepa esculenta Gray  Cepa pallens P.Renault  Cepa rubra P.Renault  Cepa vulgaris Garsault  Kepa esculenta Raf.  Porrum cepa (L.) Rchb.  Allium angolense Baker  Allium aobanum Araki  Allium cepaeum St.-Lag.  Allium commune Noronha  Allium cumaria Buch.-Ham. ex Wall.  Allium esculentum Salisb.  Allium napus Pall. ex Kunth  Allium nigritanum A.Chev.  Allium salota Dostál  Allium ascalonicum var. condensum Millán  Allium ascalonicum var. fertile Millán  Allium ascalonicum var. sterile Millán  Allium cepa var. viviparum (Metzg.) Alef.  Allium cepa var. solaninum Alef.  Allium cepa var. multiplicans L.H.Bailey  Allium cepa var. crinides Alef.  Allium cepa var. argenteum Alef.  Allium cepa var. praecox Alef.  Allium cepa var. hispanicum Alef.  Allium cepa var. lisboanum Alef.  Allium cepa var. luteum Alef.  Allium cepa var. bifolium Alef.  Allium cepa var. portanum Alef.  Allium cepa var. flandricum Alef.  Allium cepa var. anglicum Alef.  Allium cepa var. globosum Alef.  Allium cepa var. jamesii Alef.  Allium cepa var. rosum Alef.  Allium cepa var. sanguineum Alef.  Allium cepa var. tripolitanum Alef.  Allium ascalonicum f. rotterianum Voss ex J.Becker
科属Family & Genus):百合科(Liliaceae)葱属
形态特征(Description):鳞茎粗大,近球状至扁球状;鳞茎外皮紫红色、褐红色、淡褐红色、黄色至淡黄色,纸质至薄革质,内皮肥厚,肉质,均不破裂。叶圆筒状,中空,中部以下最粗,向上渐狭,比花葶短,粗在0.5厘米以上。花葶粗壮,高可达1米,中空的圆筒状,在中部以下膨大,向上渐狭,下部被叶鞘;总苞2-3裂;伞形花序球状,具多而密集的花;小花梗长约2.5厘米。花粉白色;花被片具绿色中脉,矩圆状卵形,长4-5毫米,宽约2毫米;花丝等长,稍长于花被片,约在基部1/5处合生,合生部分下部的1/2与花被片贴生,内轮花丝的基部极为扩大,扩大部分每侧各具1齿,外轮的锥形;子房近球状,腹缝线基部具有帘的凹陷蜜穴;花柱长约4毫米。花果期5-7月。
分布(Distribution):原产亚洲西部,在国内外均广泛栽培。
用途(Use):鳞茎供食用。
引自植物志英文版:FOC Vol. 24 Page 193
Allium cepa Linnaeus, Sp. Pl. 1: 300. 1753.
洋葱 yang cong| Liliaceae  | Allium
Bulb solitary or clustered, applanate-globose to cylindric-ovoid; tunic purple-red, brown-red, pale brown-red, or yellow to pale yellow, papery to thinly leathery, entire. Leaves shorter than scape, 0.5--2 cm wide, terete, fistulose. Scape developed or not, if developed then to 1 m, terete, conspicuously inflated below middle, fistulose, covered with leaf sheaths only at base. Spathe 2- or 3-valved, persistent. Umbel globose, densely many flowered or with bulblets and a few flowers. Pedicels equal, ca. 5 × as long as perianth, bracteolate. Perianth chalk white or white; segments with green or pale red midvein, oblong-ovate, 4--5 × ca. 2 mm. Filaments equal, slightly longer than perianth segments, connate at base for ca. 1/5 their length, adnate to perianth segments for 1/2 of connate part; outer ones subulate; inner ones broadened at base, 1-toothed on each side. Ovary subglobose, with concave nectaries covered by hoodlike projections at base. Style slightly exserted. Fl. and fr. May--Jul. 2 n = 16*, 32.
Cultivated as a vegetable. Throughout China [widely cultivated elsewhere].
洋葱Allium cepa

洋葱Allium cepa

洋葱Allium cepa
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