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''Iris rosenbachiana'' is now the accepted name by the [[Royal Horticultural Society|RHS]].<ref name=rhs>{{cite web|title=''Iris planifolia'' |url=https://www.rhs.org.uk/Plants/22520/Iris-rosenbachiana/Details |publisher=www.rhs.org.uk| accessdate=19 September 2014}}</ref>
''Iris rosenbachiana'' is now the accepted name by the [[Royal Horticultural Society|RHS]].<ref name=rhs>{{cite web|title=''Iris planifolia'' |url=https://www.rhs.org.uk/Plants/22520/Iris-rosenbachiana/Details |publisher=www.rhs.org.uk| accessdate=19 September 2014}}</ref>


Note, ''Iris rosenbachiana'' var. ''baldshuanica'' is a synonym of ''[[Iris baldshuanica]]''.<ref>{{cite web|title=''Iris rosenbachiana'' var. ''baldshuanica''| url=http://www.gbif.org/species/120905751 |publisher=gbif.org (Catalogue of Life)| accessdate=19 September 2014}}</ref>
Note, ''Iris rosenbachiana'' var. ''baldshuanica'' is a synonym of ''[[Iris baldshuanica]]''.<ref>{{cite web|title=''Iris rosenbachiana'' var. ''baldshuanica'' |url=http://www.gbif.org/species/120905751 |publisher=gbif.org (Catalogue of Life) |accessdate=19 September 2014 |deadurl=yes |archiveurl=https://web.archive.org/web/20141101201844/http://www.gbif.org/species/120905751 |archivedate= 1 November 2014 |df= }}</ref>


This species is similar to ''[[Iris nicolai]]'' both in cultural requirements and form.<ref name=ClaireAustin>{{cite web|first=Claire |last=Austin |title=Irises A Garden Encyclopedia| page=287| url=https://worldtracker.org/media/library/Reference/Encyclopedia's/Encyclopedia%20of%20Irises.pdf| format=pdf| publisher=worldtracker.org |accessdate=21 July 2014}}</ref>
This species is similar to ''[[Iris nicolai]]'' both in cultural requirements and form.<ref name=ClaireAustin>{{cite web|first=Claire |last=Austin |title=Irises A Garden Encyclopedia| page=287| url=https://worldtracker.org/media/library/Reference/Encyclopedia's/Encyclopedia%20of%20Irises.pdf| format=pdf| publisher=worldtracker.org |accessdate=21 July 2014}}</ref>

Revision as of 20:21, 14 April 2017

Iris rosenbachiana
From Jeti-Oguz park, Eastern Kyrgyzstan
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Monocots
Order:
Asparagales
Family:
Iridaceae
Genus:
Iris
Subgenus:
Scorpiris
Species:
Iris rosenbachiana
Binomial name
Iris rosenbachiana
Synonyms
  • Iris rosenbachiana var. violacea (Regel)
  • Juno rosenbachiana (Regel) Vved.[1]

Iris rosenbachiana is a species in the genus Iris, it is also in the subgenus of Scorpiris. It is a bulbous perennial.

It was first published by Regel in 'Trudy Imperatorskago St. Peterburgskago Botaniceskago Sada' Vol3 in 1884.[2]

The name is derived from that of the Russian governor of Turkestan where the bulb was found.[3]

Iris rosenbachiana is now the accepted name by the RHS.[4]

Note, Iris rosenbachiana var. baldshuanica is a synonym of Iris baldshuanica.[5]

This species is similar to Iris nicolai both in cultural requirements and form.[6]

It prefers to grow in well drained soils, that have a stony composition including dolimitic lime dust. They like summer drought and well ventilated positions.[7] It is difficult to grow outside in the UK, so best cultivated in an alpine house or bulb frame.[8]

Habit

Iris rosenbachiana is thought to be in the same 'physocaulon' group of junos, along with Iris kopetdagensis, Iris leptorrhiza, Iris popovii, Iris nicolai, Iris baldschuanica and Iris zaprjagajevii. They all have short thick storage tubers which come to a point, and they have an extra side bulb in addition to the bulb which produces the flowers and leaves.[7]

This iris is one of the first Juno irises to appear in mild winters of Washington, D.C. in the USA, flowering in late February.[9] But it can also flower in March in USDA Zone 7 gardens.[10] In the UK, it blooms between March and April.[6]

It grows up between to 10–15 cm (4–6 in) tall.[8][11]

It has deeply sweet scented flowers.[12]

It has between 1-3 flowers per stem,[11] which are long tubed and about 4–5 cm (1.5–2 in) wide.[8]

The flowers are variable in colour, but are generally of rosy lavender with markings of darker purple and gold.[9] But they can range from deep purple,[13] deep rich purple,[10] light purple,[12] pale mauve to white.[11][14]

It has small down-turned rich purple standards and reddish purple falls, each with an orange[10][11][13] or yellow ridge or crest in the centre.[8][12]

It has yellow-orange pollen.[14]

It has lance-shaped, channelled, mid-green leaves formed from a basal tuft.[8] The multiple leaves,[7] grow at the same time as the short flower stem.[9][12]

This iris has a seed that has an aril.[11]

Native

Iris rosenbachiana is found in Central Asia.[10][12] Also seen in North Afghanistan.[11] It has been found in the Pamir-Alai mountains at altitudes of up to 2000 m above sea level.[13] It has also been found in the Hissar Mountains[7] and Fan Mountains in Tadjikistan.[15]

Known Cultivars

  • Iris rosenbachiana 'Harangon' - large white flowers[10][16]
  • Iris rosenbachiana 'Tovil Dara' - dark purple flowers from Tovil Dara town in Tadjikistan.[10][16]
  • Iris rosenbachiana 'Varzob' - cream coloured flowers from Tadjikistan.[10][16]

References

  1. ^ "Iris rosenbachiana Regel is an accepted name". theplantlist.org. 23 March 2012. Retrieved 19 September 2014.
  2. ^ "Iris". ipni.org (International Plant Names Index). p. 143. Retrieved 19 September 2014.
  3. ^ Dykes, W.R. A handbook of Garden Irises. London: Martin Hopkinson Company Ltd. p. 60. Retrieved 26 September 2014.
  4. ^ "Iris planifolia". www.rhs.org.uk. Retrieved 19 September 2014.
  5. ^ "Iris rosenbachiana var. baldshuanica". gbif.org (Catalogue of Life). Archived from the original on 1 November 2014. Retrieved 19 September 2014. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  6. ^ a b Austin, Claire. "Irises A Garden Encyclopedia" (pdf). worldtracker.org. p. 287. Retrieved 21 July 2014.
  7. ^ a b c d Kurtz, Jim (20 March 2007). "Iris-rosenbachiana". www.signa.org (Species Iris Group of North America). Retrieved 19 September 2014.
  8. ^ a b c d e Christopher Bricknell, ed. (1994) [1989]. Gardeners' Encyclopedia of Plants and Flowers (2nd ed.). Dorling Kindersley. p. 523. ISBN 9780751301472.
  9. ^ a b c Benjamin Yeo Morrison Garden Irises , p. 26, at Google Books
  10. ^ a b c d e f g "Juno irises J-R". www.pacificbulbsociety.org. 11 May 2014. Retrieved 19 September 2014.
  11. ^ a b c d e f Cassidy, G.E.; Linnegar, S. (1987). Growing Irises (Revised ed.). Bromley: Christopher Helm. p. 80. ISBN 0-88192-089-4.
  12. ^ a b c d e Drinkwater, Robyn (16 March 2010). "Two early Juno's". stories.rbge.org.uk. Retrieved 19 September 2014.
  13. ^ a b c "Iris rosenbachiana". encyclopaedia.alpinegardensociety.net. 2011. Retrieved 19 September 2014.
  14. ^ a b "Iris rosenbachiana". rareplants.co.uk. Retrieved 19 September 2014.
  15. ^ Gardner, Chris (23 March 2011). "Flowers of the Silk Road". blogspot.co.uk. Retrieved 19 September 2014.
  16. ^ a b c "IRIS (Reticulata)". litbulbgarden.com. August 2013. Retrieved 26 September 2014.

Media related to Iris rosenbachiana at Wikimedia Commons Data related to Iris rosenbachiana at Wikispecies

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