|
''Iris curvifolia'' is a species in the genus ''Iris'', it is also in the subgenus of Iris, and in the Psammiris section. It is a rhizomatous perennial, from China. It has sickle-shaped long leaves, short stem and yellow or bright yellow flowers. It is cultivated as an ornamental plant in temperate regions. ==Description== It is similar in form to ''Iris bloudowii'', but smaller, although it has slightly inflated bracts. It has short, thick yellow-brown rhizomes, that are about in diameter.〔〔(【引用サイトリンク】url=http://efloras.org/florataxon.aspx?flora_id=2&taxon_id=200028162 )〕〔(【引用サイトリンク】url=http://frps.eflora.cn/frps/Iris curvifolia )〕〔British Iris Society (1997) 〕 Underneath, are thick fibrous secondary roots.〔〔〔 On top of the rhizome, are the bases of last seasons leaves.〔 It has glaucous green leaves, that are falcate (or sickle-shaped) or bent slightly above middle of the leaf.〔〔〔〔 They can grow up to between long and 1-1.5 cm wide.〔〔〔〔 They have an acuminate (or pointed) end.〔〔 It has leafless,〔〔〔 stems that can reach up to between long.〔〔〔〔〔 The stem has 3, lanceolate, spathes or bracts (leaves of the flower bud), which are long and wide.〔〔〔〔 They have membranous edges and acuminate ends.〔〔〔 The stems hold 2 terminal (top of stem) flowers,〔〔〔〔 between May and June.〔〔 They are held on very short pedicels.〔〔 The flowers are in diameter,〔〔〔 come in yellow,〔〔〔 or bright yellow.〔〔〔 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,〔〔 with brown veins, lines or stripes,〔〔〔〔〔〔 and a central yellow,〔 or pale yellow beard.〔〔 They are long and 1.5 cm wide.〔〔〔 The standards are oblanceolate and long and 1.3 cm wide.〔〔〔 It has long and funnel shaped, perianth tube,〔〔〔〔 a cylindrical, long ovary.〔〔〔 It also has 2.2 cm long stamens, golden yellow or yellow anthers.〔〔〔 It has 3 cm long and 4 mm wide style branches, which has lobes that are obliquely lanceolate.〔〔 After the iris has flowered, between July and September.〔〔 it produces a yellow green,〔〔 ellipsoid,〔 or obovate seed capsule,〔〔 which is 4 cm long and 2 cm wide,〔〔〔 with a short beak, and yellow green with 6 ribs.〔〔 Inside the capsules, are reddish brown, pyriform (pear-shaped) seeds,〔〔〔 which are about 7 mm long.〔 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 curvifolia」の詳細全文を読む スポンサード リンク
|