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''Iris japonica'' (also known as 'fringed iris', 'shaga' or 'butterfly flower'), despite its name, is a native of China and Japan. It is a species in the genus ''Iris'', it is also in the subgenus of ''Limniris'' and in the ''Lophiris'' section. It is a rhizomatous perennial plant, with pale blue, lavender or white flowers with an orange or yellow crest. It is cultivated as an ornamental plant in temperate regions. ==Description== ''Iris japonica'' is similar in form to ''Iris confusa'', but the leaves are at ground level.〔 It has a short, slender, greenish, creeping rhizomes.〔 It spreads by sending out thin, wiry,〔 long stolons.〔 They are shallow rooted,〔 and form dense carpets and clumps.〔 It is not invasive.〔 It has basal,〔 deep green,〔 or dark green or yellowish green 〔 or light green leaves.〔 They are glossy (or shiny) on one side and dull on the other side.〔 They are tinted, reddish purple, close to the rhizome and do not have a mid vein.〔 or lance-shaped leaves,〔 can grow up to between tall and 1.5-3.5 cm wide.〔 They are generally described as evergreen,〔 and grow in a broad fan,〔 with arching tips.〔 It has wiry, stout stems, that can grow up to between tall.〔 It has 5-12 short, slender branches,〔 (or pedicels) near top of the plant.〔 The stiff pedicels can reach between long.〔 The flowering stem (and branches) grow higher than the leaves.〔 The stems have 3-5 spathes (leaves of the flower bud), which are lanceolate,〔 and long.〔 The stems (and the many branches) hold between 2 to 4 flowers,〔 in spring and early summer,〔between March to April (in Japan)〔 or April and May.〔 The flowers are like ''Iris cristata'' flowers but paler and fancier. The short lasting flowers open in succession (one after another),〔 for between 2,〔 and 5 weeks.〔 These flowers have a clove pinks aroma. The flattish,〔 flowers are in diameter,〔 and come in shades of pale blue,〔 or pale lavender,〔 or lilac,〔 or purple,〔 to 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 elliptic or obovate, with a spreading limb and blue or purple/violet blotching, spots, (or dots) around a central yellow signal patch around a visible yellow, 〔 or orange crest.〔 They are long and 1.4–2 cm wide. The standards are elliptic or narrowly obovate. They are long and 1.5-2.1 cm wide. The standards spreading to the same plane as the falls,〔 creating the 'flat' look. All the petals are fringed (fimbriated) around the edges.〔 It has a 1.1–2 cm long perianth tube, 0.8-1.2 cm long stamens, white anthers and 7-10mm ovary. It has 0.5-0.75 long and pale blue style branches. The terminal lobes are fimbriated (fringed).〔 After the iris has flowered, between May and June, it produces an ellipsoid-cylindric, non-beaked seed capsule, which is 2.5–3 cm long and 1.2-1.5 cm wide. Inside the capsule, it has dark brown seeds with a small aril.〔 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 japonica」の詳細全文を読む スポンサード リンク
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