|
}} ''Iris arenaria'' (Sand Iris) is a species in the genus ''Iris'', it is also in the subgenus of Iris and in the ''Psammiris'' section. It is a rhizomatous perennial, from Central Europe, found in Hungary, Austria, Romania, Czech Republic and Ukraine. It has grass-like leaves, short stem and pale yellow flowers. It has had a mixed origin and was once ''Iris humilis subsp. arenaria'', a subspecies of ''Iris humilis'' (another Psammiris iris), until it was reclassified as a separate species. But many sources still state, it is either a synonym or subspecies of ''Iris humilis''. It is cultivated as an ornamental plant in temperate regions. ==Description== It is similar in form to ''Iris pumila'', but differs by being smaller in all parts.〔Sydenham Teast Edwards and John Lindley 〕 It has a long, thin rhizome,〔(【引用サイトリンク】url=http://www.agbina.com/site.xp/053051050124052052055.html )〕〔(【引用サイトリンク】url=http://redbook-ua.org/item/iris-pineticola-klokov/ )〕 which is about about 2–5 mm thick.〔(【引用サイトリンク】url=http://salvia-os.cz/rostliny/274-iris-arenaria )〕 Which has many thickened branched nobes.〔〔 These creeping branched rhizomes make clumps of plants.〔〔(【引用サイトリンク】url=http://www.biomonitoring.cz/druhy.php?druhID=99 )〕 The rhizome has the remains of last seasons leaves.〔 It has long, thin and flat leaves, that are long and 1.5-10mm wide.〔〔〔Thomas Gaskell Tutin (Editor)〕 It has an erect, simple, unbranched and green stem, that grows up to between tall.〔〔〔(【引用サイトリンク】url=http://www.syringa-pflanzen.de/sand-iris-pflanze.html )〕 The stems have 1-2 spathes (leaves of the flower bud), which are green, lanceolate and (scarious) membranous. They are 2-3.5 cm wide.〔〔〔 They have short, 6mm long pedicels (flower stalk).〔〔 The stems hold between 1 to 2 flowers,〔〔〔Elizabeth Lawrence, Nancy Sanders Goodwin and Allen Lacy 〕 in spring,〔 between April and May.〔〔〔〔 The flowers have a very short flowering period,〔 that only last one day,〔〔 it opens in the morning and then closes in the afternoon.〔 The fragrant flowers,〔〔 are vanilla scented,〔 and come in shades of yellow,〔〔〔 between light yellow,〔 and pale yellow,〔〔〔 to bright yellow.〔 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 sub-orbicular, and long,〔〔〔 and 1.3 cm wide.〔 They have purple veins,〔〔〔 and an orange,〔〔 or deep yellow beard.〔 The standards are narrow, oblanceolate, with a short claw (section closest to the stem).〔〔 They are long,〔 with darker veins.〔〔〔 It has a perianth tube that is hypanthial (cup shaped) or infundibuliform (funnel shaped) and 5-12mm,〔〔 and 3 cornered oblong ovary.〔 After the iris has flowered, in July–September,〔 it produces an oblong or fusiform (spindle shaped) seed capsule.〔〔 The capsules dehisce (split open), laterally (similar to ''Iris korolkowii''). Inside the capsules, are brown, ovoid,〔 globose or pyriform seeds.〔 which have a circular 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 arenaria」の詳細全文を読む スポンサード リンク
|