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Iris graeberiana - kosatec Graeberův - blossom

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Iridaceae
Subfamilia: Iridoideae
Tribus: Irideae
Genus: Iris
Subgenus: I. subg. Scorpiris
Species: Iris graeberiana

Iris graeberiana Tubergen ex Sealy, Bot. Mag. 167: t. 126. 1950.

Juno graeberiana (Sealy) Soják, Cas. Nár. Mus., Odd. Prír. 150: 138. 1982.
Juno zenaidae Vved., Opred. Rast. Sred. Azii 2: 322. 1971.
Iris zenaidae (Vved.) F.O.Khass. & Rakhimova, Stapfia 97: 178. 2012.

Native distribution areas:

Middle Asia

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

Govaerts, R. et al. 2019. Iris graeberiana in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2019 Oct 4. Reference page.
USDA, ARS, Germplasm Resources Information Network. Iris graeberiana in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 6 Sep 2006.

Iris graeberiana is a species in the genus Iris, in the subgenus of Scorpiris. It is a bulbous perennial.


In late spring,[2] (or April),[3] it has between 4–6 flowers per stem and reaches a maximum height of 45 cm (18 in) tall.[4]

It has pale silvery mauve flowers.[4] It also comes in blueish-lavender,[2] or blue-violet shades.[5] The flowers are 6–8 cm (2–3 in) wide with a wavy,[5] white crest on each fall.[2] Which is surrounded by a pale, boldly veined zone.[5]

The white margined leaves, have glossy mid-green tops, but with greyish green bottoms, which are scattered along the stem.[2] The leaves grow to approximately 20 cm (8 in) tall at flowering time, then they extend to twice this. They are between 1.5–3.5 cm (1–1 in) wide.[5]

It was named after Paul Graeber (a plant collector who also collected Iris hoogiana and Tulipa ostrowskiana for the Dutch Van Tubergen company).[6][7]

It was first published in Botanical Magazine Vol.167 on table 126 by Sealy in 1950.[8]

Iris graeberiana is an accepted name by the RHS,[9] and the iris is recognized by the United States Department of Agriculture and the Agricultural Research Service, since 2003.[10]
Distribution and habitat

It is native to Tajikistan,[11] and Turkestan (parts of the former republic of USSR) in Central Asia.[4]

It is known as one of the more vigorous species,[4] therefore is easier to grow the others in the subgenus.[2] It is also hardy to USDA Zone 5–8.[12]

They are best grown in well-drained soils [13] in open, stony places or an Alpine house, but some growers recommend outside culture, if sheltered from heavy summer rains.[5] The plant attracts birds and butterflies.[14]

It can be seen growing in Le Grand Clos botanical garden in Bourgueil, France.[15]
Known hybrids

Iris graeberiana 'White fall',[14][16]

It is thought to have been bred by crossing Iris graeberiana with Iris magnifica.[12]

Iris graeberiana 'Yellow fall',[17]
Iris graeberiana 'Dark Form' ; a more hardy plant but with smaller darker flowers. It is similar to Iris zenaidae but with smaller flowers.[18]


"Juno graeberiana". 23 March 2012. Retrieved 21 August 2014.
Brickell, Christopher, ed. (1996). RHS Encyclopedia of Garden Plants. London: Dorling Kindersley. p. 522. ISBN 978-0-7513-0436-7.
"How to grow Iris". Retrieved 23 August 2014.
Cassidy, G.E.; Linnegar, S. (1987). Growing Irises (Revised ed.). Bromley: Christopher Helm. pp. 145–146. ISBN 0-88192-089-4.
"Iris graeberiana". Retrieved 23 August 2014.
Austin, Claire (2005). Irises: A Gardener's Encyclopedia. Timber Press, Incorporated. ISBN 978-0881927306. OL 8176432M.
"Tulipa ostrowskiana". Retrieved 23 August 2014.
"Iris graeberiana". Retrieved 21 August 2014.
"Iris graeberiana". Retrieved 21 August 2014.
"Taxon: Iris graeberiana Tubergen ex Sealy". Retrieved 8 January 2022.
"Tajikistan". Retrieved 23 August 2014.
"Iris graeberiana". (Species Iris Group of North America). Retrieved 23 August 2014.
"flag". Retrieved 23 August 2014.
"Iris graeberiana 'White Fall' | Chicago Botanic Garden". Retrieved 2022-01-08.
"Autumn List (G-L)". 2007. Retrieved 19 August 2014.
"PlantFiles: Juno, Scorpiris". Retrieved 23 August 2014.

"Juno Irises (A-l)". Retrieved 23 August 2014.

Other sources

S. K. Czerepanov, 1995. Vascular plants of Russia and adjacent states (the former USSR) Cambridge University Press. (note: listed as Iris graberana Sealy)
Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
Brian Mathew, 1981. Iris,

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