|
''Iris purpureobractea'' is a species in the genus ''Iris'', it is also in the subgenus of Iris. It is a rhizomatous perennial, from the cliffs and forest glades on the mountains of Turkey. It has straight or falcate shaped leaves, stem with several branches, the stem has purple spathes (leaves of the flower bud), it has up to 8 fragrant flowers, in various colours between yellow (white, pale yellow, pale brown and tan) or blue (purple, lavender, pale blue to ice blue). It is cultivated as an ornamental plant in temperate regions. ==Description== It has broad rhizomes that have secondary roots,〔(【引用サイトリンク】url=http://irisbotanique.over-blog.com/article-chapitre-i-les-iris-rhizomateux-partie-2-123788250.h )〕 that can form clumps of plants. It has straight or slightly falcate (or sickle shaped), grey-green leaves, although the base of the leaves is purple violet.〔 They can grow up to between long,〔〔 and between 1.5 and 2.5 cm wide.〔〔 Similar to ''Iris junonia'', it is herbaceous, the leaves die in the winter, when they re-grow in the spring.〔 It has a slender stem or peduncle, that can grow up to between tall.〔(【引用サイトリンク】url=https://www.rareplants.es/shop/uploads/Html/Iris-purpureobracteata-pure-yellow-form_6872_1.htm )〕 It is normally taller than the foliage.〔 The stem has several branches, (or pedicels), normally 2-4, the lower branches are long and the upper branches are sessile.〔 The stem has obtuse or rounded,〔 inflated,〔〔(【引用サイトリンク】url=http://hillviewrareplants.com.au/plant/iris-purpureobractea )〕 spathes that are very heavily stained purple.〔〔 Hence, the name ''Iris purpureobractea''.〔〔〔 They can grow up to long.〔 The stems (and the many branches) hold up to 8 flowers,〔 in spring,〔〔 between March or April,〔 to May,〔〔〔 or (rarely) July.〔 The fragrant flowers,〔 are in diameter.〔 They are variable in colour,〔〔〔 which come in shades of blue or yellow.〔〔 The blue ranges from purple,〔 lavender,〔 ice-blue,〔〔〔 and pale blue.〔〔〔 The yellow ranges from white,〔 off-white,〔 to pale yellow,〔〔〔 straw yellow,〔〔 tan,〔 pale brown.〔 There are occasionally blended or bi-toned flowers, such as white and purple forms.〔〔 The blue forms, have a darker centre patch,〔〔 or veined with purple.〔〔 The yellow forms can be pale yellow with greenish-brown veining,〔〔〔 they also have bracts that are not so intensely purple stained.〔British Iris Society (1997)〕 The yellow forms of ''Iris junonia'',〔Kelly Norris 〕 and yellow forms of ''Iris imbricata'' are similar in form to the yellow forms of ''Iris purpureobractea'', also forms of ''Iris germanica in the Taurus mountains near Egirdir are very similar to the iris.〔Basak Gardner & Chris Gardner 〕 Like other irises, 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 shaped, cuneate (wedge shaped) at the base, they are long,〔 and between 2.8-3.5 cm wide.〔 In the centre of the fall, is a strip of thick hairs (the beard), which is white tipped with yellow,〔〔 or orange.〔 The standards are obovate (shaped) with a narrow claw (section of the petal closest to the stem), they are long,〔 and between 2.5–4 cm wide.〔 It has style branch, that is 3–4 cm long and 1.2-1,6 cm wide.〔 After the iris has flowered, it produces an oblong seed capsule, that is long and 1.5 cm wide.〔 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 purpureobractea」の詳細全文を読む スポンサード リンク
|