| 词条 | Iris psammocola |
| 释义 |
|name = Iris psammocola |image = |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Monocots |ordo = Asparagales |familia = Iridaceae |subfamilia = Iridoideae |tribus = Irideae |genus = Iris |subgenus = Iris |sectio = Pseudoregelia |species = Iris psammocola |binomial = Iris psammocola |binomial_authority = Y.T.Zhao |synonyms = Iris potaninii var. arenaria Doronkin [1]}} Iris psammocola is a species in the genus Iris, it is also in the subgenus of Iris and in the Pseudoregelia section. It is a rhizomatous perennial, from China. It has grass-like leaves, short stems, yellow flowers. It is cultivated as an ornamental plant in temperate regions. DescriptionIt has short, obconical (like an inverted cone) rhizomes, with slender secondary roots underneath. The top of the rhizome has dense straight fibres.[2][3] It has narrow, linear leaves, that can grow up to between {{convert|8|-|13|cm|0|abbr=on}} long, and between 0.2 and 0.4 cm wide. They have a pointed end.[2] It has a very short slender stem, that can grow up to between {{convert|3|-|4|cm|0|abbr=on}} tall.[2] The stem has 2 lanceolate and (scarious) membranous spathe (leaves of the flower bud). They are between {{convert|3.5|-|4|cm|0|abbr=on}} long and about 0.8 cm wide. They have a distinct midvein.[2] The stems hold 1 terminal (top of stem) flower, blooming between April and May.[2] The yellow flowers are {{convert|4|-|5|cm|0|abbr=on}} in diameter.[2] They have a very short pedicel and slender perianth tube, that is {{convert|4|-|4.5|cm|0|abbr=on}} long. 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'.[4] The falls have an obovate limb (part of the petal beside the stem), they are {{convert|4|cm|0|abbr=on}} long and 1.5 cm wide. In the centre of the petal is a beard. The erect standards are oblanceolate and {{convert|3.5|cm|0|abbr=on}} long and 4 cm wide.[2] It has 1.5 cm long stamens, and style branches that are 3.5 cm long.[2] After the iris has flowered, it produces an seed capsule which has not been described. BiochemistryAs most irises are diploid, having two sets of chromosomes, this can be used to identify hybrids and classification of groupings.[4] Nothing has been reported currently as of August 2015, about a chromosome count of the iris. TaxonomyIt is written as 沙生鸢尾 in Chinese script and known as sha sheng yuan wei in Pidgin.[2] It is commonly known in China as 'Sandy iris'.[5] The Latin specific epithet psammocola refers to an amalgamation of 2 Greek words. 'Psammo' – sand, and 'cola' – living in.[6] It was originally collected in the desert dunes of Baijiatan (White House Beach), near the city of Lingwu, in Ningxia on the 10 April 1959.[5] It was first published and described by Yu Tang Zhao in 'Acta Phytotax. Sin.' Vol.30 Issue 2 on page 181 in 1992.[7][8][9] It was verified by United States Department of Agriculture and the Agricultural Research Service on 4 April 2003, then updated on 29 September 2008.[8] It is listed in the Encyclopedia of Life.[10] As of August 2015, Iris psammocola is not yet an accepted name by the RHS. Distribution and habitatIt is native to temperate Asia.[8] RangeIt is found in China,[7] within the province of Ningxia.[2][8][10] geographic distribution Asia – China – Ningxia Hui Ningxia Dune Region, China[9] HabitatIt grows in the desert dunes.[2][10] ToxicityLike many other irises, most parts of the plant are poisonous (rhizome and leaves), if mistakenly ingested can cause stomach pains and vomiting. Also handling the plant may cause a skin irritation or an allergic reaction.[11] References1. ^{{cite web |title=Iris psammocola Y.T.Zhao is an accepted name |date= 23 March 2012 |url=http://www.theplantlist.org/tpl1.1/record/kew-322260 |publisher=theplantlist.org (The Plant List)|accessdate=17 July 2015}} 2. ^1 2 3 4 5 6 7 8 9 10 {{cite web |title=FOC Vol. 24 Page 311 |url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=240001323 |publisher=efloras.org (Flora of China) |accessdate=15 August 2015}} 3. ^{{cite journal |last=Zhao |first=Yu Tang |last2= |first2= |date=1992 |title=A new species of Iris from China |url=http://www.jse.ac.cn/wenzhang/FL30-2-10.pdf |journal=Acta Phytotaxonomica Sinica |publisher= |volume=30 |issue=2 |pages=181–182 |doi= |accessdate=17 August 2015}} 4. ^1 {{cite book |first=Claire |last=Austin |title=Irises; A Garden Encyclopedia |year=2005 |publisher=Timber Press |isbn=0881927309 }} 5. ^1 2 {{cite web |title=Type specimens and literature |url=http://www.cvh.ac.cn/holotype/Iris |publisher=cvh.ac.cn (Chinese Virtue Herbarium (CVH)) |accessdate=15 August 2015}} 6. ^D. Gledhill {{Google books|NJ6PyhVuecwC|The Names of Plants|page=326}} 7. ^1 {{cite web |title=Iridaceae Iris psammocola Y.T.Zhao |url=http://www.ipni.org/ipni/idPlantNameSearch.do?id=961130-1 |publisher=ipni.org (International Plant Names Index) |accessdate=17 July 2015}} 8. ^1 2 3 {{GRIN | accessdate=16 July 2015}} 9. ^1 {{cite web |first=Alain |last=Franco |title=(SPEC) Iris psammocola Y.T.Zhao |date=3 December 2013 |url=http://wiki.irises.org/bin/view/Spec/SpecPsammocola |publisher=wiki.irises.org (American Iris Society)| accessdate=15 August 2015}} 10. ^1 2 {{cite web |title=Iris psammocola |url=http://eol.org/pages/2902608/overview |publisher=eol.org |accessdate=15 August 2015}} 11. ^David G Spoerke and Susan C. Smolinske{{Google books|a7-f66fRfzQC|Toxicity of Houseplants|page=236}} Sources
External links
5 : Iris (plant)|Endemic flora of China|Flora of Ningxia|Garden plants of Asia|Plants described in 1992 |
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