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}} ''Iris minutoaurea'' is a beardless iris in the genus ''Iris'', in the subgenus ''Limniris'' and in the ''Chinenses series'' of the species. It is a rhizomatous herbaceous perennial of eastern Asia, native to China and Korea. It has been naturalized in Japan. It has long grassy-like leaves, short stem and bright yellow or pale yellow flowers. It is cultivated as an ornamental plant in temperate regions. ==Description== ''Iris minutoaurea'' can sometimes be mistaken for ''Iris henryi'' (another yellow flowering Chinese iris). But they differ is sizes of pedicel (flower stalk) and perianth tube. ''Iris henryi'' has a short perianth tube and long pedicel, while with ''Iris minutoaurea'' it is the other way around. It has a yellowish brown, slender, wiry, rhizome,〔〔 measuring about long and wide.〔 that produces many branches and stolons.〔〔British Iris Society (1997) 〕 This branching habit forms clumps of plants.〔〔〔 In autumn, the roots (under the rhizomes), produce small nodules.〔 These are used to fix nitrogen, from the soil.〔(【引用サイトリンク】url=http://www.orchideenkultur.net/index.php?topic=28569.30 )〕 It has grassy, linear, ribbed, long and wide leaves.〔〔〔〔〔〔〔 They appear in early March, they then elongate after flowering up to long, reaching a maximum height by June.〔〔〔 This elongating leaf habit is also shared by ''Iris koreana''. It has a very short, slender flowering stem, only long.〔〔〔〔〔〔〔〔 It has one terminal (at the top of the stem) flower,〔 in spring to early summer,〔〔 in April or May.〔〔〔 It has 2 lanceolate (lance-like) long and wide, spathes (leaves of the flower bud), that are acuminate (ending in a point).〔 The small flowers come in yellow shades. Between bright yellow and pale yellow.〔〔〔〔〔〔〔〔〔〔 The flowers are in diameter.〔〔〔〔 Which can be compared to the size of a quarter.〔 It has 2 pairs of petals, 3 large sepals (outer petals), known as the 'falls' and 3 inner, smaller petals (or tepals, known as the 'standards'.〔 The drooping obovate (egg-like) falls, measuring long and wide, have brown or purple marks (dots or lines) on the hafts and in the centre of the petal.〔〔〔〔〔〔〔〔 The smaller, paler (in colour) narrow, upright standards are between long and wide,〔 with brown/purple petal stalks.〔〔〔〔〔〔〔 It has a slender, long perianth tube.〔〔 It has slender 1.5-2.5 cm pedicel (flower stalk), 1 cm long stamens and yellow-brown anthers. It has long ovary and long wide, style branches similar in colour to the standards.〔 After the iris has flowered, it produces a globose (spherical) seed capsule between June and July.〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Iris minutoaurea」の詳細全文を読む スポンサード リンク
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