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Iris spuria

Iris spuria, or blue flag, is a species of the genus Iris, part of the subgenus Limniris and the series Spuriae. It is a rhizomatous perennial plant, from Europe, Asia and Africa. It has purple or lilac flowers, and slender, elongated leaves. It is widely cultivated as an ornamental plant in temperate regions and hybridized for use in the garden. It has several subspecies; Iris spuria subsp. carthaliniae B.Mathew, Iris spuria subsp. demetrii B.Mathew, Iris spuria subsp. maritima (Dykes) P.Fourn. and Iris spuria subsp. musulmanica (Fomin) Takht. It used to have 3 other subspecies, which have now been re-classified as separate species; Iris spuria subsp. halophila, Iris spuria ssp. sogdiana and Iris spuria subsp. notha . It has many common names including 'blue iris', 'spurious iris' and 'bastard iris'.

Description
It has a thin, slender rhizome, that is about 2 cm in diameter, fibrous and has a creeping habit. Under the rhizome are wiry roots. They can reach over wide. 6) glucoside, tectoridin (a tectorigenin-7-O-beta-glucoside) and tectorigenin-4'-O-beta-glucoside. In 2012, five Iris species (Iris pseudacorus, Iris crocea, Iris spuria, Iris orientalis and Iris ensata) were studied, to measure the flavonoids and phenolics content with the rhizomes. Iris pseudacorus had the highest content and Iris crocea had the lowest content. In May 2014, a study was carried out on the hepatoprotective activity of Iris spuria against paracetamol induced toxicity. In July 2014, eight Irises from the Limniris section (Iris crocea, Iris ensata, Iris orientalis, Iris pseudacorus, Iris setosa, Iris sibirica with its cultivars 'Supernatural' and 'Whiskey White', Iris spuria and Iris versicolor) were studied to find 12 chemical compounds (flavonoids, phenols, quinones, tannins, saponins, cardiac glycosides, terpenoids, alkaloids, steroids, glycosides and proteins. Genetics As most irises are diploid, having two sets of chromosomes, this can be used to identify hybrids and classification of groupings. == Taxonomy==
Taxonomy
's The Botanical Magazine (V. 2), in 1790. The Latin specific epithet spuria refers to 'spurious' meaning false. Linnaeus thought that the plants were hybrids rather than a true species. It is written as 假鸢尾 in Chinese script and known as Jia Yuan Wei in Pinyin Chinese. In Czech, it is called . Due to the wide distribution of the species, it has many different common names, including 'spurious iris',