Iris iberica subsp. elegantissima

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Iris iberica subsp. elegantissima
Iris elegantissima.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Iridaceae
Genus: Iris
Species:
Subspecies:
I. i. subsp. elegantissima
Trinomial name
Iris iberica subsp. elegantissima
Synonyms [1]
  • Iris elegantissima Sosn.
  • Iris speciosissima Filippov

Iris iberica subsp. elegantissima is a subspecies in the genus Iris , subgenus Iris and section Oncocyclus. It is a subspecies of Iris iberica and is a rhizomatous perennial, from Armenia, Turkey and Iran. It has large, thin and falcate (sickle-shaped) leaves, slender stem with a single flower between April and May. It has a white, cream or pale yellow ground, which is covered in dark veining or speckling in violet, mauve, purple or brown shades. The larger standards are paler, normally white and less veined. The falls, have darker veining and a dark signal patch and brown or purple beard. It is commonly known as Iris elegantissima, especially in Europe and Russia. It is cultivated as an ornamental plant in temperate regions, but normally needs some protection during the winter period.

Contents

Description

It is classed as an mezo-xerophyte (meaning it likes medium to dry habitats), [2] and has stoloniferous rhizomes which are about 3 cm long. Underneath the rhizomes, it has very long secondary roots. [3]

It has large, [4] ribbon-like, [3] and falcate (sickle-shaped), [5] [6] leaves, that can grow up to 20–30 cm (8–12 in) long, [3]

It has a slender stem or peduncle, that starts to grow in March, [3] up to 20–30 cm (8–12 in) tall. [7] [8] [9]

The stem holds a terminal (top of stem) flower, [3] the plant normally has 2–3 stems, [4] each with flower buds, [10] blooming in Spring, [11] between late March, [3] or April and May, [4] [12] or June. [5]

The large flowers, are 10–14 cm (4–6 in) in diameter, [6] [8] they have a white, [5] [6] [13] cream, [3] or pale yellow ground, [8] [11] [14] has dark, [9] veining or speckling in violet, [5] mauve, [10] purple or brown shades. [3] [11] Compared to Iris iberica which can have blue veining and marking. [13]

Like other irises, it has 2 pairs of petals, 3 sepals (outer petals), known as the 'falls' and 3 inner petals (or tepals), known as the 'standards'. [15] [16] :17 The darker veined, [6] [7] scallop shell shaped, [10] falls are deflexed (bending over to an almost flat position), [10] [11] and up to 6–8 cm (2–3 in) long. [5] in the center of the falls, is a velvet-like, [5] dark, [14] brown to purple, [3] or black signal patch. [5] Also, in the middle of the falls, is a row of short hairs called the 'beard', which are brown to purple. [3] Also over the falls, the iris has a deflexed style branches that almost covers the signal spot. [13] The almost vertical, [11] and larger standards, [17] are creamy, [5] or white, [6] with pale, [3] or thin violet veins. [5] They are up to 6–10 cm (2–4 in) long, [5] [10] and can be described as white cotton handkerchiefs. [10]

The flowers produce pollen, which has been precisely measured, the long axis is 114 micrometres (0.0045 in) long and the short axis is 111 microns long. [18]

After the iris has flowered, it produces a seed capsule between June and July. [5] [2] Then the plant dies back, losing the leaves and stems, to rest underground during the winter. [2]

Biochemistry

As most irises are diploid, having two sets of chromosomes, this can be used to identify hybrids and classification of groupings. [16] :18 It has a chromosome count: 2n=20, [3] [14] [19] and has an unnamed alkaloid (as of 1961), contained within its rhizome. [20]

A study in 2014, was carried out on various species of iris DNA, it found that I. iberica ssp. elegantissima had a purity value of 2.80, compared to 1.26 of Iris aucheri .[ citation needed ]

Taxonomy

The Latin specific epithet elegantissima refers to 'elegantissimus' meaning very elegant, [21] it is a superlative of 'elegans'. [22]

It was first discovered in Transcaucasus, [23] and then first published and described by Dmitrii Ivanovich Sosnowsky in Vestn. Tiflissk. Bot. Sada Vol.11 on page 2 in 1915. [1] [23] In 1972, it was then re-classified as a subspecies of Iris iberica by A. L. Takhtadzhyan and A. A. Fedorov, and published as Iris iberica subsp. elegantissima (Sosn.) Fed. & Takht. in Fl. Erevana Vol.331 in 1972. [1] [24] [25]

Although it is often referred to as Iris elegantissima Sosn. in Russia and Armenia. [26] [27] [28] but elsewhere it is referred to as a subspecies. [29] [30] [31]

It was verified as Iris iberica subsp. elegantissima by United States Department of Agriculture and the Agricultural Research Service on 22 February 2006, then altered on 11 December 2007. [24] It is listed in the Encyclopedia of Life, [32] and is an accepted name by the RHS. [33]

Distribution and habitat

It is native to temperate Asia. [24]

Range

It is found in Armenia, [4] [7] [24] (including Shirak, [12] Yerevan, [12] [15] [27] Aparan, Mount Aragats and Sevan. [5] ) in north western Iran, [4] [10] [24] (including Maku, [5] ) and in north eastern Turkey, [4] [6] [10] (or East Anatolia, [5] ) including near Lake Van Basin, [29] Erzurum, [10] and Ararat. [34]

It was listed as found in Azerbaijan, in 2004, [35] but this either a cultivated form or mistaken form of Iris iberica, which is naturally found there. [36]

Habitat

It grows on the lower and middle mountain belts, [5] on semi-desert slopes, [5] [7] [27] or dry rocky, (marl) slopes, [5] [4] [10] and steppes, [5] [4] [7] --> (with many annuals and long grasses. [15] ) and in coniferous forests. [4] [15]

They can be found at an altitude of 750–2,250 ft (230–690 m) above sea level. [5] [4] [10]

Conservation

It is a rare species, [4] and was included in the Red Data Book of Armenia, [5] [12] [26] but not included in the Annexes of CITES and that of the Bern Convention. [5] It is at risk due to various factors, including urbanization, land development for arable purposes (framing) and the intensive collection (of the flowers) for selling. [5]

The species grows and is monitored within Sevan National Park, Khosrov State Reserve and Erebuni State Reserve in Armenia. [5] [26] Erebuni was formed in 1981, with the purpose of protecting 100 varieties of wild wheat and their habitat. Various rare or endangered species of plant can be found within the reserve, including Actinolema macrolema , Aegilops crassa , Gladiolus atroviolaceus , Hordeum spontaneum , Iris elegantissima (I. iberica subsp. elegantissima), Merendera trigyna , Stipa vavilovii , Triticum araraticum , Triticum boeoticum and Triticum urartu . [26]

It is also grown in Yerevan Botanic Garden in Armenia. [37]

Cultivation

'Oncocyclus Section' Irises are in general easier to grow than 'Regalia Section' irises. [6] I. iberica subsp elegantissima is hardy to European Zone 4, [11] (meaning hardy to −5 to −10oC (23 to 14oF). [38] In the UK, it needs to be covered through the winter, [7] within an alpine house. [10] [39]

The irises grow within fertile, [39] highly drained soil, [4] [39] in full sun, [7] but needs protection from rain in the late summer and winter. [4] [30] [39] In the US, the rhizomes are susceptible to being dug up by squirrels. [30]

Propagation

Irises can generally be propagated by division, [40] or by seed growing. Irises generally require a period of cold, then a period of warmth and heat, also they need some moisture. Some seeds need stratification, (the cold treatment), which can be carried out indoors or outdoors. Seedlings are generally potted on (or transplanted) when they have 3 leaves. [41] Oncoyclus irises dislike division, but it should only be carried out when the plant is overcrowded. Although hand pollination and germinating seedlings gives better results. [42]

Toxicity

Armenia produced stamps for Iris elegantissima and Iris lycotis (subspecies of Iris iberica) ArmenianStamps-127-128.jpg
Armenia produced stamps for Iris elegantissima and Iris lycotis (subspecies of Iris iberica)

Like 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. [43]

Culture

On 19 December 1997, as part of Flora and Fauna of Armenia (III issue) in the 'Irises' series, 2 stamps had images of the irises, [12] (See images on the right), also on 12 August 1993, a commemorative stamp was issued in Azerbaijan, from the Flowers series, Iris elegantissima. [44]

Related Research Articles

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Iris damascena is a species of plant in the genus Iris. It is a rhizomatous perennial endemic to Mount Qasioun in Syria. It has thin, sickle-shaped, grey-green leaves and medium-sized stem that holds 1-2 large flowers between March and April. Inflorescences are white or grey-white with purple-brown spotting or veining and a small blackish or dark purple signal patch with a sparse, purple or dark purple beard. It is rarely cultivated as an ornamental plant in temperate regions, as it needs very dry conditions during the summer. The species is classified as critically endangered by the IUCN.

<i>Iris gatesii</i> Species of plant

Iris gatesii is a species in the genus Iris, it is also in the subgenus Iris and in the section Oncocyclus. It is a rhizomatous perennial, from the mountains of Turkey and Iraq. It has long, narrow, grey-green or glaucous leaves. The strong, sturdy stem supports a single large flower in spring, between April and June. The large flowers are very variable in colouring, ranging from a pale greenish, grey, white, or creamy-yellow background colour, which is then covered with many purplish-brown, purple, or nearly black, spots, dots, short broken lines, or veining. They have a brownish purple or purple beard, over a dark signal patch. It can be cultivated as an ornamental plant in temperate regions, if it does not get too wet during summer.

Iris grossheimii is a plant species in the genus Iris, subgenus Iris and section Oncocyclus. It is a rhizomatous perennial, from the Caucasus mountains of Georgia, Armenia and Azerbaijan. It has sickle shaped leaves, which are as long as the short stem, which carries one flower in spring. It is beige, pink or brown covered in dark lines that are, purple-brown or brown. It has a large blackish brown signal patch and brown or black beard. It is rarely cultivated as an ornamental plant in temperate regions, as it needs very dry conditions during the summer.

<i>Iris hermona</i> Species of flowering plant

Iris hermona, the Golan iris, is a plant species in the genus Iris, it is also in the subgenus of Iris, and in the section Oncocyclus. It is a rhizomatous perennial, from the pastures and meadows of the Golan Heights in Israel and Syria. It has linear, upright leaves, tall slender stem holding a bi-coloured flower, having a pale lilac, cream-yellow, light tan, or white background, which is then covered in purple brown, or purple, or purple-pink veining, spots or speckling. It has a round purple-brown or almost black signal patch, and a sparse purple brown or almost black beard. It is rarely cultivated as an ornamental plant in temperate regions, as it needs very dry conditions during the summer.

Iris heylandiana is a species in the genus Iris, it is also in the subgenus Iris, and in the section Oncocyclus. It is a rhizomatous perennial, from the marshlands or fields of Iraq. It has short, linear or sickle shaped grey-green leaves, slender stem, a single flower in spring, which has a dingy-white, whitish, or pale background, which is covered in many spots or dark veining, in black-purple, brown-purple, or brown violet, or brown shades. It has a dark brown or burgundy brown signal patch and white tinged with yellow or orange white sparse beard. It is rarely cultivated as an ornamental plant in temperate regions, as it needs very dry conditions during the summer.

<i>Iris iberica</i> Species of plant

Iris iberica is a plant species in the genus Iris, it is also in the subgenus Iris and in the section Oncocyclus. It is a rhizomatous perennial, from the Caucasus mountains of Armenia, eastern Georgia, and western Azerbaijan. It has narrow, glaucous, gray-green and sickle shaped leaves, short stem holding a single flower in late spring. Which has a pale background covered with heavy veining in pale mauve, violet, dark purple, maroon or purple-brown. It has a black or dark purple signal patch and a brown or purple-brown beard. Although, it has many hybrid forms dues to its variability and has 2 known subspecies of Iris iberica subsp. elegantissima and Iris iberica subsp. lycotis. It is cultivated as an ornamental plant in temperate regions, as it is hardier than other Oncocyclus species.

References

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Sources

Commons-logo.svg Media related to Iris iberica subsp. elegantissima at Wikimedia Commons Wikispecies-logo.svg Data related to Iris iberica subsp. elegantissima at Wikispecies