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Iris xiphium, the Spanish Iris (also known as Dutch Iris) and; Iris latifolia, the English Iris. Despite the common names both the Spanish and English iris are of Spanish origin, and have very showy flowers, so they are popular with gardeners and florists. They are among the hardier bulbous irises, and can be grown in northern Europe.
Iris latifolia – English Iris; Iris lusitanica Ker Gawl. Iris rutherfordii M Rodriguez,P Vargas,M Carine and S Jury; Iris serotina Willk. in Willk. & Lange; Iris tingitana Boiss. & Reut. – (Morocco Iris) Iris xiphium syn. Iris x hollandica [2] – Spanish Iris, Dutch Iris, Small Bulbous-rooted Iris
Iris setosa, the bristle-pointed iris, is a species of flowering plant in the genus Iris of the family Iridaceae, it belongs the subgenus Limniris and the series Tripetalae.It is a rhizomatous perennial from a wide range across the Arctic sea, including Alaska, Maine, Canada (including British Columbia, Newfoundland, Quebec and Yukon), Russia (including Siberia), northeastern Asia, China ...
Iris latifolia: in situ view from the Pyrénées Iris latifolia seeds – MHNT. Iris latifolia, the English iris, [2] also known as I. xiphiodes and I. anglica, is a hardy flowering bulbous species of the Iris genus, in the family Iridaceae. It is native to the Pyrenees of Southwestern France and Northwestern Spain.
Iris ser. Syriacae is a series of the genus Iris, in Iris subg. Limniris. The series was first classified by Ludwig Diels in 'Die Natürlichen Pflanzenfamilien' (Edited by H. G. A. Engler and K. Prantl) in 1930. It was further expanded by George Hill Mathewson Lawrence in Gentes Herb (written in Dutch) in 1953. [1]
The iris consists of two layers: the front pigmented fibrovascular layer known as a stroma and, behind the stroma, pigmented epithelial cells.. The stroma is connected to a sphincter muscle (sphincter pupillae), which contracts the pupil in a circular motion, and a set of dilator muscles (dilator pupillae), which pull the iris radially to enlarge the pupil, pulling it in folds.
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 ...
This double membrane is often considered continuous with the retina and a rudiment of the embryological correspondent to the retina. The inner layer is unpigmented until it reaches the iris, where it takes on pigment. The retina ends at the ora serrata. The space between the ciliary body and the base of the iris is the ciliary sulcus. [4]