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Iris × germanica grows up to 120 cm (47 in) high and 30 cm (12 in) wide. [5] The roots can go up to 10 cm (3.9 in) deep and it is a rhizomatous perennial that blooms mid to late spring. Hundreds of cultivars exist representing nearly every colour from jet black to sparkling whites and red. [ 6 ]
In his book, 'The Iris' in 1981, Brian Mathew, re-classified the iris as Iris germanica 'Florentina'. [23] [25] [39] This later became Iris germanica nothovar. florentina. It was verified by United States Department of Agriculture and the Agricultural Research Service on 19 October 1994, then updated on 12 September 2005, as Iris germanica L ...
Iris virginica is a perennial plant that grows up to 0.6–0.9 m (2–3 ft) tall. The plant's sword-shaped basal leaves are erect or sometimes arching and measure up to 91 cm (3 ft) long and 2.5 cm (1 in) across at the base.
Iris tridentata is a species in the genus Iris, it is also in the subgenus Limniris and in the series Tripetalae. It is a rhizomatous perennial , from the Southeastern United States. It has a cord-like rhizome, bright green leaves, long stem and fragrant flowers in spring in shades of blue.
The AIS also established a registry to track cultivars. In 1922 and 1923, issues of the bulletin carried successive version of the AIS's preliminary checklist. Two large checklists were published as books in 1929 and 1939 under the title of the American Iris Society Alphabetical Iris Checklist. The first of these included some 12,000 names of ...
It was later classified as a hybrid, [3] [27] but it is unsure which species (of iris) are the parents. [4] It probably originated in the Mediterranean as a diploid species. [3] Many authors think it is a hybrid of Iris variegata L. [28] and Iris pallida Lam. [1] [9] [15] [29] Others think it is a synonym of Iris germanica L., [12] [30 ...
Baker also placed the Iris, within the Regalia Section. [3] After this time, it was renamed as 'Iris barnumae'. Then in 'The Garden' (magazine), page133 on 18 February 1893, Mr Foster disputed the placing of the iris within Regalia and placed it alongside Iris Iberica (within the Oncocyclus Section). [3] Chromosomal counts in 1977 then ...
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