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Iris orientalis

Iris orientalis
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Iridaceae
Subfamily: Iridoideae
Tribe: Irideae
Genus: Iris
Subgenus: Limniris
Series: series Spuriae
Species: Iris orientalis
Binomial name
Iris orientalis
Philip Miller
Synonyms
  • Chamaeiris longipedicellata (Czeczott) M.B.Crespo
  • Chamaeiris monnieri (DC.) M.B.Crespo
  • Chamaeiris orientalis (Mill.) M.B.Crespo
  • Iris albida Davidov
  • Iris gigantea Carrière
  • Iris longipedicellata Czeczott
  • Iris monnieri DC.
  • Iris ochroleuca L.
  • Iris spuria subsp. monnieri (DC.) Dykes
  • Iris spuria var. ochroleuca (L.) Sims
  • Iris spuria subsp. ochroleuca (L.) Dykes
  • Xiphion monnieri (DC.) Alef.
  • Xiphion ochroleucum (L.) Alef. [Illegitimate]
  • Xyridion monnieri (DC.) Klatt
  • Xyridion ochroleucum (L.) Klatt
  • Xyridion orientalis (Mill.) Rodion.

Iris orientalis is a species in the genus Iris, it is also in the subgenus of Limniris and in Series Spuriae. It is a rhizomatous perennial plant, from Turkey and Greece, with white flowers with a yellow mark or blotch. It was also known as Iris ochroleuca for a long time. It is commonly known as yellow banded iris in the U.S. and Turkish iris in the U.K. but also has some other less common names. It is very hardy and has been known to naturalize in various countries. It is widely cultivated as an ornamental plant in temperate regions.

It has short, branching, stout, woody rhizomes. They can be up to 1.5 cm in diameter. Underneath, they have fleshy roots.

Over a long period, they can form large clumps of plants.

It has basal leaves, that are erect, between deep green and dark green, stiff and (lanceolate) sword-like. They can grow up to 60–90 cm (24–35 in) long and 1–2 cm wide. The leaves are not usually as long as the flowering stems.

The flower stalk begins to grows in April and then reaches maturity in May.

The solid, slightly flattened stems, about 1-cm wide, can generally grow up to between 40–90 cm (16–35 in) long.

Although, larger forms are known to be much bigger, growing up to between 90–170 cm (35–67 in) long. It has normally 1 or more short branches.

The stems have 2-3 spathes (leaves of the flower bud), which are papery (in form) and 9–12 cm (4–5 in) long.

The stems (and branches) hold 2-5 terminal (top of stem) flowers, which open in succession, blooming in late spring, or summer, between May and July.

The large flowers are 8–10 cm (3–4 in) in diameter, and are white or near-white.

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 spreading, arching downwards, with a large egg-yolk yellow central area. They are 8–10 cm (3–4 in) long and 3–6 cm wide. The standards are erect, spatulate (spoon-like), with a yellow centre section surrounded in white. They are 4–8 cm (2–3 in) long and 1-1.5 cm wide.

The flowers are pollinated by insects.


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