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''Iris leptophylla'' is a species in the genus ''Iris'', it is also in the subgenus of Iris and in the ''Pseudoregelia section''. It is a rhizomatous perennial, from China. It has thin, long grey-green leaves, long slender stem and 2 fragrant purple, blue-purple, violet or lavender pink flowers. It is cultivated as an ornamental plant in temperate regions. ==Description== It has a thick rhizome,〔(【引用サイトリンク】url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200028187 )〕〔(【引用サイトリンク】url=http://irisbotanique.over-blog.com/ )〕〔(【引用サイトリンク】url=http://frps.eflora.cn/frps/Iris%20leptophylla )〕 which is swollen and tuber-like.〔 It is between 1.2 - 1.5 cm in diameter,〔〔 and brown or grey-brown in colour.〔 Under the rhizome are fibrous secondary roots,〔 which are yellow-white.〔 On top of the rhizome, are the brown fibrous remains of last seasons leaves.〔〔 They emit an odour.〔 The rhizomes grow slowly.〔 It has thin, linear leaves, that are greyish green, with a distinct rib (or midvein) and acuminate (pointed) end.〔〔〔 They can grow up to between long,〔〔〔(【引用サイトリンク】url=http://www.anemona.be/plante%20225%20Iris%20leptophylla )〕 and between 0.2 and 1 cm wide.〔〔 They appear in April.〔 It has a slender stem, about 2mm in diameter,〔 that can grow up to between tall. The stem has 3 or 4 green, lanceolate spathes (leaves of the flower bud). They are between long and between 1 to 1.8 cm wide. They also have a distinct rib (or midvein) and (scarious) membranous edges.〔〔 The stems hold between 2 or 3 terminal (top of stem) flowers, blooming in late spring to early summer,〔(【引用サイトリンク】url=https://www.kevockgarden.co.uk/plantlist/h15s_iris_leptophylla.htm )〕 between April to May,〔〔〔 or from May to June (in Europe).〔 The fragrant flowers,〔〔 (with a primrose-like fragrance,〔) are in diameter,〔〔〔 they come in shades of purple,〔 including blue-purple,〔 violet,〔〔 lavender pink.〔〔 It has very short pedicels,〔 and a flared,〔 perianth tube of long,〔〔 and up to 1.5 cm in diameter.〔 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 obovate or spatulate (spoon-like) shaped, long and 2 cm wide.〔〔 In the centre of the petal is a yellow,〔 or white beard.〔 They also have a dissected yellow crest.〔〔 The erect standards are lanceolate, long and between 0.5–1 cm wide.〔〔 It has stamens that are between 1,〔 to 4 cm long.〔 It also has white anthers.〔 The light blue,〔 style branches are about 4.5 cm long,〔 with blue and white stripes.〔 After the iris has flowered, between May to June,〔 or May to July.〔 it produces an ovoid,〔 or cylindric seed capsule.〔 Which is 4 cm long and 1.3 cm wide, with an acute point,〔 and 6 prominent veins.〔 It dehisces (splits open) laterally, to reveal pear shaped, dark brown seeds, with a brown aril (appendage).〔 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 leptophylla」の詳細全文を読む スポンサード リンク
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