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}} ''Iris tectorum'' (also known as ''roof iris'', ''Japanese roof iris'' and ''wall iris'') is a species in the genus ''Iris'', it is also in the subgenus of ''Limniris''. It is a rhizomatous perennial. It is native of China, Korea and Burma, with lavender-blue, bluish-violet, purple-blue, blue-lilac or sky blue flowers. There is a white form as well. It is a compact plant and is cultivated as an ornamental plant in temperate regions. ==Description== It has a thick,〔(【引用サイトリンク】url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200028218 )〕〔British Iris Society (1997) 〕〔(【引用サイトリンク】url=http://encyclopaedia.alpinegardensociety.net/plants/Iris/tectorum )〕〔(【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 )〕 (the size of a man's thumb),〔Richard Lynch 〕 creeping,〔〔 buff (coloured),〔 or greenish rhizome.〔James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) 〕〔(【引用サイトリンク】url=https://plants.ces.ncsu.edu/plants/all/iris-tectorum/ )〕 They are similar in form to a bearded iris rhizome.〔〔 It has slender, short roots (under the rhizomes),〔〔 and fibres on the top.〔 The creeping habit, creates spreading clumps of plants.〔〔Barbara Ellis 〕〔(【引用サイトリンク】url=http://www.ansci.cornell.edu/plants/php/plants.php?action=indiv&byname=scientific&keynum=47 )〕〔(【引用サイトリンク】url=http://www.igarden.com.au/plant-type.jsp?id=1186&t=Iris )〕〔(【引用サイトリンク】url=http://www.learn2grow.com/plants/iris-tectorum/ )〕 It does not produce stolons.〔 It has basal fans,〔〔〔〔〔〔〔De-Yuan Hong and Stephen Blackmore (Editors) 〕〔(【引用サイトリンク】url=https://gobotany.newenglandwild.org/species/iris/tectorum/ )〕〔(【引用サイトリンク】url=http://www.cgf.net/plants.aspx?genus=IRIS )〕 that are yellowish green,〔 or pale green,〔〔〔〔〔〔〔〔(【引用サイトリンク】url=http://flower.onego.ru/other/iris/irie_cro.html )〕〔(【引用サイトリンク】url=http://www.hgtvgardens.com/flowers-and-plants/white-root-iris-iris-tectorum-album )〕 and sword-shaped (ensiform),〔〔〔〔〔 or lance-shaped.〔〔〔 They are also, glossy,〔〔〔 and ribbed,〔〔〔〔〔〔〔〔〔〔 and can grow up to between long and wide.〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔 The leaves are floppy,〔〔 and described as semi-evergreen.〔〔〔 It has terete (cylindrical),〔 stems that can grow up to between tall.〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔Donald Wyman 〕〔(【引用サイトリンク】url=http://www.irises.org.au/crested.htm )〕〔John Greenlee 〕 It has 1-2 branches,〔〔〔〔〔〔〔〔 and 1-2 (reduced) stem leaves.〔〔〔〔 The stems have 2-3 spathes (leaves of the flower bud), that are green,〔 lanceolate and long and wide.〔〔 It has a 1 cm long pedicel (flower stalk),〔 which is shorter than the spathe,〔 but similar in size to the ovary.〔 The stems (and the branches) hold between 1 to 3 flowers,〔〔〔〔〔〔〔〔〔 in late spring,〔〔〔〔〔〔 or early summer,〔〔〔〔〔〔〔〔〔 between April and May,〔〔〔〔〔〔〔〔〔〔Florence Du Cane 〕 or June.〔〔〔 It flowers between September and October in Australia.〔 The flower display can last for 2 weeks.〔 The flowers are in diameter,〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔(【引用サイトリンク】url=http://www.herbs2000.com/flowers/i_ievansia.htm )〕 The flattened,〔〔〔〔〔〔 horizontal, flowers are larger than ''Iris japonica'' flowers.〔Elizabeth Lawrence〕 The flowers come in shades of lavender blue,〔〔〔〔〔〔〔〔〔〔〔〔 or bluish violet,〔〔〔〔〔〔〔〔〔 or blue-lilac,〔〔〔〔〔〔〔〔〔〔〔〔〔〔 or purple-blue,〔〔〔〔〔〔 or sky blue.〔〔〔 There is also a white form.〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔 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 (egg-like),〔〔 or ovate,〔 with darker (or brownish purple/violet).〔 mottling,〔〔〔〔〔 veining,〔〔〔 streaks,〔〔 or spots,〔〔〔〔 around a toothed or lacinated (fringed),〔〔 white crest.〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔〔 They have a bi-coloured claw (part of the petal closest to the stem), white and violet or lilac.〔〔 The falls are long and 4 cm wide.〔〔〔〔 The elliptic standards spread horizontally (not erect),〔〔〔〔〔〔 and are long and 3 cm wide.〔〔 Both petals (falls and standards) can have wavy margins.〔〔〔〔 The flowers are self-fertile,〔 but are pollinated by insects.〔 It has a 2.5–3 cm long slender, perianth tube,〔〔〔〔 a 2.5 cm long stamen, bright yellow anthers and a cylindric, 1.8–2 cm long ovary.〔 It has a pale bluish-violet style branch, that is 3.5 cm long.〔 It has toothed lobes (at the tips), that are irregular.〔〔 After the iris has flowered, between June and August,〔〔 it produces an ellipsoid or obovoid (oblong-ovoid),〔〔 light green,〔 seed capsule.〔〔 It is long and 2-2.5 cm wide,〔〔〔 and has 6 ribs.〔 When it ripens, (and goes brown),〔 it splits in three, along 2 or more seams, starting from the top.〔〔 Inside, are multiple,〔〔 black-brown seeds,〔〔 which are pyriform (pear shaped) and have a small cream (coloured) aril (appendage).〔〔 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 tectorum」の詳細全文を読む スポンサード リンク
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