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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.
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A light blue iris with limbal ring Blue iris. There is no intrinsically blue pigmentation either in the iris or in the vitreous body. Rather, blue eyes result from structural color in combination with certain concentrations of non-blue pigments. The iris pigment epithelium is brownish black due to the presence of melanin. [54]
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Iris rhizomes also contain notable amounts of terpenes, and organic acids such as ascorbic acid, myristic acid, tridecylenic acid and undecylenic acid. Iris rhizomes can be toxic. Larger blue flag (I. versicolor) and other species often grown in gardens and widely hybridized contain elevated amounts of the toxic glycoside iridin. These rhizomes ...
The three, usually light blue, sepals have purple lines and surround the three smaller darker-blue petals. Iris missouriensis is an erect herbaceous rhizomatous perennial, 20 to 40 centimetres (7 + 7 ⁄ 8 to 15 + 3 ⁄ 4 in) high, with leafless unbranched scapes (flowering stems) and linear basal leaves, 5 to 10 mm wide, similar in height to the scapes.
Iris giganticaerulea – Giant Blue Iris, Giant Blue Flag; Iris hexagona Walt. – Dixie Iris; Iris nelsonii Randolph – (Abbeville Iris) Iris savannarum Small – Prairie iris; Series Laevigatae (which includes the Japanese irises) Iris ensata Thunb. – Japanese Iris, hanashÅbu (including I. kaempferi) Iris laevigata Fisch – Rabbitear ...
Iris prismatica, the slender blue flag or cubeseed iris, [2] is a plant species native to parts of the southern and eastern United States from Maine south to Alabama, as well as to the Canadian provinces of Ontario and Nova Scotia. [3] [4] [5] Iris prismatica is a perennial herb spreading by means of rhizomes that are close to the surface of ...