German Iris

Iris germanica
Irises (Iridaceae)


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Iris × germanica is the accepted name for a species of flowering plants in the family Iridaceae commonly known as the bearded iris or the German bearded iris. It is one of a group of hybrid origin. Varieties include I. × g. var. florentina.

Description

Iris × germanica grows up to 120 cm high and 30 cm wide. The roots can go up to 10 cm deep and it is a rhizomatous perennial that blooms mid to late spring. Hundreds of hybrids exist representing nearly every colour from jet black to sparkling whites, except bright scarlet.

Biochemistry

It is known to produce the isoflavone irilone, and several analytical studies have been made from the rhizomes.

As most irises are diploid, having two sets of chromosomes. This can be used to identify hybrids and classification of groupings. It has had its chromosome counted several times; 2n=44, Banerji & Chaudhuri, 1972; 2n=28, Mao 1986; 2n=44 Sopova 1982; 2n=44, Váchová & Feráková, 1986 and 2n=44, Lovka, 1995.

Taxonomy

It is most commonly known as 'bearded iris' and in the UK occasionally as 'common German flag'.

It was first published and described by Carl Linnaeus in his book 'Species Plantarum' on page 38 in 1753.

Iris germanica is an accepted name by the RHS, and it was verified by United States Department of Agriculture Agricultural Research Service on 8 May 1996.

It is a European hybrid, rather than a true wild species. I. germanica is considered to have been a natural hybrid between Iris pallida and Iris variegata Linnaeus, both of which also have the chromosome number 2n = 24.

Distribution and habitat

Iris germanica is thought to be originated in mediterranean Europe.

Range

It is widely naturalized across Europe.

Cultivation

It prefers to grow in full sun, with well-drained soil. It normally most of its leaves over the winter period. After it has flowered and during dry conditions through the summer is best time to divide and transplant.

Propagation

It can be propagated by seed and by division.

Hybrids and cultivars

It has many cultivars and hybrid forms. These are a few known I. germanica cultivars; 'Adriatic Shores', 'Amas', 'Askabadensis', 'Baveilles', 'Belouinii', 'Biliotti', 'Black Prince', 'Col Du Chat', 'Cretan', 'Crimson King', 'Croatica', 'Deflexa', 'Florentina', 'Fontarabie', 'Germanica' 'Germanica Alba', 'Germanica Caerulea', 'Germanica Major', 'Germanica Marmorata', 'Germanica Maxima' 'Germanica Violacea', 'Germanica Vulgaris', 'Gnome', 'Gypsy Queen', 'Istria', 'Junonia', 'Kharput', 'Kirman', 'Kochii', 'Kurdistan', 'Lemperg Purple', 'Macrantha', 'Nepalensis, 'Oriflamme', 'Paladin', 'Purple King', 'Seattle' 'Sivas'; 'Srinagar', 'Thun', 'Turchino', 'Varbosiana' and 'Varbossana'.

In culture

In Iran and Kashmir, Iris kashmiriana and Iris × germanica are most commonly grown on Muslim grave yards.

It has frequently been painted including 'Iris' (see right) and 'Irises' both by Vincent Van Gogh.

Photo gallery

See also

  • Orris root

References

Sources

  • Czerepanov, S. K. 1995. Vascular plants of Russia and adjacent states (the former USSR) Cambridge University Press. Note: lists as Iris germanica L.
  • Davis, P. H., ed. 1965-1988. Flora of Turkey and the east Aegean islands. Note: lists as Iris germanica L.
  • Encke, F. et al. 1993. Zander: Handwörterbuch der Pflanzennamen, 14. Auflage Note: = species
  • FNA Editorial Committee. 1993-. Flora of North America. Note: lists as Iris germanica L.
  • Komarov, V. L. et al., eds. 1934-1964. Flora SSSR. Note: = Iris germanica L.
  • Lampe, K. F. & M. A. McCann. 1985. AMA handbook of poisonous and injurious plants
  • Mathew, B. 1981. The Iris. 25-28.
  • Nasir, E. & S. I. Ali, eds. 1970-. Flora of [West] Pakistan.
  • Personal Care Products Council. INCI
  • Rechinger, K. H., ed. 1963-. Flora iranica. Note: lists as Iris germanica L.
  • Stace, C. 1995. New flora of the British Isles. Note: natzd.
  • Townsend, C. C. & E. Guest. 1966-. Flora of Iraq. Note: = Iris germanica L.
  • Tutin, T. G. et al., eds. 1964-1980. Flora europaea. Note: = Iris germanica L.*
  • Waddick, J. W. & Zhao Yu-tang. 1992. Iris of China
  • Walters, S. M. et al., eds. 1986-2000. European garden flora

External links

  • Media related to Iris × germanica at Wikimedia Commons
  • Data related to Iris × germanica at Wikispecies



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Size Shape Colour Ranging
Size  Large       Shape  Lip         Colour Ranging  Single
Large Lip Single
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