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Iris narcissiflora

Iris narcissiflora
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Iridaceae
Subfamily: Iridoideae
Tribe: Irideae
Genus: Iris
Subgenus: Iris
Section: Pseudoregelia
Species: Iris narcissiflora
Binomial name
Iris narcissiflora
Diels
Synonyms

None known


None known

Iris narcissiflora 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 pale green, thin, sword-shaped leaves, medium-long slender stem and 1 yellow flower. It is cultivated as an ornamental plant in temperate regions.

It has short, fibrous rhizomes. That has secondary roots or slender stolons.

It has pale green and linear leaves, that are sword-shaped and can grow up to between 12–25 cm (5–10 in) long, and between 0.2 and 0.3 cm wide. They do not have a midvein. The deciduous leaves, disappear in winter or after flowering.

It has a slender stem, that can grow up to between 18–30 cm (7–12 in) tall.

The stem has 2 purplish-green, lanceolate spathe (leaves of the flower bud). They can grow up to between 2.5–3.3 cm (1–1 in) long and 1.2 cm wide.

The stems hold 1 terminal (top of stem) flower, blooming between April and May.

The flat looking flower is 5–5.5 cm (2–2 in) in diameter, and is yellow.

It has a perianth tube that is 3 – 4 mm 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'. The falls are elliptic or obovate (ovate with the narrower end at the base) in shape, they are 3.5 cm (1 in) long and 2.5 cm wide. In the centre of the petal, is a narrow, sparse beard. The standards are narrow and ovate (oval-like) shaped, they are 2.8 cm long and 1.6 cm wide.

It has 1.3 cm long stamens, 1.5 cm long ovary. It has a 1.5 cm long and 8 mm wide, spreading style branch, that has irregularly toothed lobes.

After the iris has flowered, it produces a seed capsule between June and August.

As most irises are diploid, having two sets of chromosomes, this can be used to identify hybrids and classification of groupings. Nothing has been reported currently as of August 2015, about a chromosome count of the iris.


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Wikipedia

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