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''Iris furcata'' (Forked Iris) is a species in the genus ''Iris'', it is also in the subgenus of Iris. It is a rhizomatous perennial, from the Caucasus mountains, in the countries of Moldavia and the southern Ukraine. It has short, narrow, sword-shaped leaves. A slender stem, that branches beyond the midpoint, holding small purple, deep purple, blue-violet, light blue or violet flowers. It is cultivated as an ornamental plant in temperate regions. It is often regarded as a synonym of ''Iris aphylla'', but it has chromosomal and morphological differences, so it may considered to be a parent species instead. ==Description== ''Iris furcata'' is similar in form and flower colour to ''Iris aphylla''.〔(【引用サイトリンク】url=http://irisbotanique.over-blog.com/article-chapitre-i-les-iris-rhizomateux-partie-2-105950846.html )〕 Apart from the difference in stems, in ''Iris furcata'' it branches from near to the middle of the stem, where as ''Iris aphylla'' does not branch.〔 It has a short, creeping rhizome, that is 2 cm long and fibrous.〔 They creep across the surface of the ground.〔 It has short, linear, ensiform (sword shaped) leaves.〔〔〔 The slender,〔British Iris Society (1997) 〕 leaves can grow up to long.〔 and between 0.5 and 1 cm wide. Normally, about 15mm wide.〔 They more slender than ''Iris aphylla''.〔 It has a slender stem,〔 or peduncle,〔 that can grow up to between tall.〔 It has branched stem,〔 that branches usually from above the middle of the stem.〔〔 The stem is shorter and more slender than ''Iris aphylla''.〔 The stem has green, inflated, ovate or oblong, spathes (leaves of the flower bud), that sometimes has purple veins.〔 The stems (and the many branches) hold between flowers in early spring,〔Caledonian Horticultural Society, Edinburgh 〕 or late spring and early summer,〔 or May.〔William Curtis, Samuel Curtis, John Sims, Joseph-Dalton Hooker, William Jackson Hooker (Editors) 〕 The flowers are smaller than ''Iris aphylla'',〔〔〔 about long.〔 They come in shades of purple,〔〔〔(【引用サイトリンク】url=http://www.greentours.co.uk/Middle-East/THE-PONTIC-ALPS-2/ )〕 deep purple,〔〔〔 blue-violet,〔 light blue or violet.〔 Like other irises, 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 have an obovate blade and narrow claw.〔 In the centre of the fall is a beard. (which has not been described). The standards are lanceolate.〔 It has style branch that is 1.2 cm long, which is deltoid shaped and has toothed edges.〔 After the iris has late summer,〔 it produces an elongated triangular capsule.〔 Inside the capsule, are small, reddish brown, oval, wrinkled and rather compressed seeds.〔〔 They are 4-5mm long and 2-3mm wide.〔 They are smaller than ''Iris aphylla'' seeds. 53-56 of ''Iris furcata'' seeds weighs 1 gram in weight. Whereas ''Iris aphylla'' 32-35 seeds weighs 1 gram in weight.〔 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 furcata」の詳細全文を読む スポンサード リンク
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