Iris arenaria | |
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Scientific classification | |
Kingdom: | Plantae |
(unranked): | Angiosperms |
(unranked): | Monocots |
Order: | Asparagales |
Family: | Iridaceae |
Subfamily: | Iridoideae |
Tribe: | Irideae |
Genus: | Iris |
Subgenus: | Iris |
Section: | Psammiris |
Species: | Iris arenaria |
Binomial name | |
Iris arenaria Waldst. and Kit. |
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Synonyms | |
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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, a 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 that it is either a synonym or subspecies of Iris humilis. It is cultivated as an ornamental plant in temperate regions.
It is similar in form to Iris pumila, but differs by being smaller in all parts.
It has a long, thin rhizome, which is about 2–5 mm thick. Which has many thickened branched nobes. These creeping branched rhizomes make clumps of plants. The rhizome has the remains of last seasons leaves.
It has long, thin and flat leaves, that are 5–32 cm (2–13 in) long and 1.5-10mm wide.
It has an erect, simple, unbranched and green stem, that grows up to between 5–25 cm (2–10 in) tall.
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 and 2 flowers, 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 30–35 mm (1–1 in) 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 27–33 mm (1–1 in) long, with darker veins.