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}} ''Iris orientalis'' is a species in the genus ''Iris'', it is also in the subgenus of ''Limniris'' and in ''Series Spuriae''. It is a rhizomatous perennial plant, from Turkey and Greece, with white flowers with a yellow mark or blotch. It was also known as ''Iris ochroleuca'' for a long time. It is commonly known as ''yellow banded Iris'' in USA and ''turkish Iris'' in the UK but also has some other less common names. It is very hardy and has been known to naturalize in various countries. It is widely cultivated as an ornamental plant in temperate regions. ==Description== It has short, branching, stout, woody rhizomes.〔(【引用サイトリンク】url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242101712 )〕〔Richard Lynch 〕〔(【引用サイトリンク】url=http://irisbotanique.over-blog.com/article-chapitre-ii-iris-a-touffe-et-autre-partie3-106518511.html )〕 They can be up to 1.5 cm in diameter.〔 Underneath, they have fleshy roots.〔 Over a long period, they can form large clumps of plants.〔〔(【引用サイトリンク】url=http://www.herbs2000.com/flowers/i_ispuria.htm )〕〔(【引用サイトリンク】url=http://www.seasonalwildflowers.com/may/turkish-iris.html )〕 It has basal leaves,〔〔 that are erect, between deep green and dark green, stiff and (lanceolate) sword-like.〔〔〔〔 They can grow up to long and 1–2 cm wide.〔〔〔〔〔〔〔〔Stuart Max Walters (Editors) 〕 The leaves are not usually as long as the flowering stems.〔 The flower stalk begins to grows in April and then reaches maturity in May.〔 The solid, slightly flattened stems,〔 about 1-cm wide,〔 can generally grow up to between long.〔〔〔〔〔〔〔Christopher Brickell (Editor) 〕 Although, larger forms are known to be much bigger, growing up to between long.〔〔〔〔〔〔〔(【引用サイトリンク】url=http://www.pacificbulbsociety.org/pbswiki/index.php/LegacyBulbsSix )〕〔John Kirkegaard 〕 It has normally 1 or more short branches.〔〔〔〔〔 The stems have 2-3 spathes (leaves of the flower bud),〔〔〔 which are papery (in form) and long.〔〔〔〔〔 The stems (and branches) hold 2-5 terminal (top of stem) flowers, which open in succession, blooming in late spring,〔 or summer,〔〔 between May and July.〔〔〔〔〔〔〔 The large flowers are in diameter,〔〔〔〔〔 and are white or near-white.〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔 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 falls are spreading, arching downwards, with a large egg-yolk yellow central area.〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔 They are long and 3–6 cm wide.〔〔〔〔〔〔 The standards are erect, spatulate (spoon-like), with a yellow centre section surrounded in white.〔〔〔〔〔 They are long and 1-1.5 cm wide.〔〔〔〔 The flowers are pollinated by insects.〔 It has 1-2.5 cm long, white, funnel-form or cup shaped perianth tube,〔〔 long, white style branches,〔〔〔〔〔 and 2 lobed stigmas.〔 After the iris has flowered, it produces an ovoid to oblong-elliptic, triangular in cross section, seed capsule, long and 2-2.5 cm wide, with a beaked top.〔〔〔 The brown seed capsule has 2 ribs.〔〔〔 Inside the seed capsule, are 2 rows of papery, wrinkled, white, flattened or wedged-shaped seeds, that are 4-5mm across.〔 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 orientalis」の詳細全文を読む スポンサード リンク
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