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The original Martin scale, summarized below, consists of 16 colors (from light blue to dark brown-black) that correspond to the different eye colors observed in nature due to the amount of melanin in the iris. The numbering is reversed in order to match the Martin–Schultz scale, which is still used in biological anthropology. In this case ...
Iris versicolor or Iris versicolour is also commonly known as the blue flag, harlequin blueflag, larger blue flag, northern blue flag, [2] and poison flag, plus other variations of these names, [3] [4] and in Great Britain and Ireland as purple iris. [5] It is a species of Iris native to North America, in the Eastern United States and Eastern ...
Iris is an ambiguous color term, usually referring to shades ranging from blue-violet to violet. However, in certain applications, it has been applied to an even wider array of colors, including pale blue, mauve, pink, and even yellow (the color of the inner part of the iris flower).
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 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.
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 ...
Larger Blue Flag or Iris versicolor, a type of iris; Slender Blue Flag or Iris prismatica, a type of iris; Transport. Blue flag, a particular Flag#Railway flags in railway use. Blue sign used by European waterways vessels passing on the starboard side; Military. Blue Flag (Israeli Air Force exercise), the name of an Israeli Air Force exercise ...