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}} ''Iris ventricosa'' is a beardless iris in the genus ''Iris'', in the subgenus ''Limniris'' and in the ''Tenuifoliae series'' of the species. It is a rhizomatous herbaceous perennial, from Asia, from the Russian Federation, to Mongolia and China. It has grey-green leaves, short flowers stems and 1-2 pale violet or pale blue flowers. ==Description== ''Iris ventricosa'' is similar in form to ''Iris bungei'', with a few differences.〔 It has knobbly, woody, tough, short and thick rhizomes.〔〔〔 Under the rhizomes, are thread-like black roots,〔 which can go down into the soil over deep.〔 18 inches On top of the rhizome, is a dense, network-like arrangement of brown fibres, which are the remains of the last seasons leaves, they surround the new leaves and flower stems like a sheath.〔〔〔 It is often grows as single specimens, but can sometimes form thick colonies of plants.〔 It has linear, grey-green leaves, which are long and 3–4 mm wide.〔〔〔 It has flower stems, that are long.〔〔〔〔〔(【引用サイトリンク】url=http://irisbotanique.over-blog.com/article-chapitre-ii-iris-a-touffe-et-autre-partie1-106517062.html )〕 The stems hold 1–2, terminal (top of stem) flowers, blooming in May,〔 or June.〔〔 It has three yellowish green, acuminate (pointed), between long and 2.5–4 cm wide, spathes (leaves of the flower bud).〔 They have netted veining and are inflated.〔〔〔〔 Hence the common names. It has flowers are in diameter, that come in shades of pale violet,〔〔 or pale blue.〔〔 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 slender, narrowly spatulate (spoon shaped), long and 8–10 mm wide.〔〔〔 They have a band of papillose (or small hairs), along the mid-vein.〔 The narrower, lanceolate, semi-erect standards are long and 7–8 mm wide.〔〔〔 It has 2.5–4 cm long perianth tube, 1-1.5 cm long pedicel and long and 6 mm wide style branches.〔〔 Which are similar in colour to the standards with a defined mid-vein. It has 3–3.5 cm long stamens, yellowish-purple anthers and 1.5 cm long and 2.5–3 mm long ovary.〔 After the iris has flowered, between July and August (in China),〔 or between late August and early September (in Russia).〔 It produces an ellipsoid or cylindric seed capsule, measuring 2.5–4 cm long and 1 cm wide. It has six veins, three thickened angles and apical beak.〔 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 ventricosa」の詳細全文を読む スポンサード リンク
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