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''Iris formosana'' is a species in the genus ''Iris'', it is also in the subgenus of ''Limniris'' and ''Lophiris'' section. It is a rhizomatous perennial plant, from Taiwan, it has large white or lilac flowers. It is commonly known as the 'Taiwan Iris'. It is cultivated as an ornamental plant in temperate regions. ==Description== It has thick rhizomes,〔(【引用サイトリンク】url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200028169 )〕〔(【引用サイトリンク】url=http://www.eljardinensupuerta.es/iris-formosana-2755-p.asp )〕〔(【引用サイトリンク】url=http://www.senteursduquercy.com/iris-botanique/335-iris-formosana-iris-de-formose.html )〕〔(【引用サイトリンク】url=http://site.plantes-web.fr/senteursduquercy/0/boutique/62213/iris_formosana.htm )〕〔(【引用サイトリンク】url=http://www.carex.cat/es/vivers-carex/catalogo/iris-formosana-.aspx )〕〔(【引用サイトリンク】url=http://irisbotanique.over-blog.com/article-chapitre-ii-iris-a-touffe-et-autre-partie3-106518511.html )〕 with slender branching stolons.〔〔〔〔〔〔(【引用サイトリンク】url=http://www.bulbargence.com/m_catalogue/article.php?id_categorie=14&id_article=339&val )〕〔British Iris Society (1997) 〕 It has the habit of creating large clumps of plants.〔(【引用サイトリンク】url=http://www.pepinieredesavettes.com/pepiniere/iris-formosana,989,asso==520,theme==0 )〕 It has herbaceous,〔 erect, sword shaped, rigid,〔 leaves that are greyish-green on one side and bright green on the other side.〔〔〔〔〔〔〔〔(【引用サイトリンク】url=http://www.taibif.tw/zh/namecode/201785 )〕 They can grow up to between long and 2-2.5 cm wide.〔〔 The leaves have between 3 – 5 veins or ribs.〔〔〔 They are similar to ''Iris japonica''s leaves.〔 It has a thick,〔 flowering stem that can vary, between long.〔〔 It is normally between long.〔〔〔〔 The stems are smaller than ''Iris confusa'' stems.〔 It has between 4 to 5 branches.〔〔〔〔〔〔 The stems have 4-6 spathes (leaves of the flower bud), which have membranous margins.〔 The stems (and branches) hold between 3 to 5 flowers,〔〔 in Spring,〔〔〔〔(【引用サイトリンク】url=http://taibif.org.tw/flower/detail.php?sc=Iris+formosana&locale=en )〕 between April to May (in the UK),〔〔 or between March and April (in Europe).〔〔 The flowers are similar to ''Iris japonica'' but with shorter basal leaves and larger white flowers.〔〔〔 The flowers are in diameter,〔〔〔〔 and come in shades of white,〔〔〔〔〔〔〔〔〔〔 or lilac,〔〔〔 light purple,〔 or lavender,〔 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 obovate, 4–5 cm long and 2.5 cm wide.〔〔 They blue lines and yellow-brown (or purple,〔 or mauve,〔) spots around a large yellow or orange crest.〔〔〔〔〔〔〔〔〔〔〔〔 The falls have wavy and serrated or denticulated (toothed edge or margins).〔〔〔〔〔〔〔 The standards reflexed obliquely, oblanceolate to oblong,〔〔 and 2.5–3 cm long and 1.5 cm wide.〔 It has a furrowed apex.〔〔 It has a white 1 cm long perianth tube,〔〔 8-9mm long anthers, that are oblong to linear in shape, 1.5 cm long white filaments and a 1 cm long ovary.〔 It has pale blue or white style branches, that are 2 cm long and 6-7mm wide, that has a fimbriate (fringed) lobe.〔〔〔 It is self-sterile.〔 After the iris has flowered, it produces an oblong-ovate seed capsule,〔〔〔 measuring 3–4 cm long.〔〔 It has the remains of the perianth tube on the apex of the capsule.〔〔 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 formosana」の詳細全文を読む スポンサード リンク
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