List of Iris species
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Bearded rhizomatous irises
Section Iris
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Subgenus Limniris
Beardless rhizomatous irises It has been generally divided into 2 sections, 'Limniris', which is further divided down to about 16 series and 'Lophiris' (also known as 'Evansias' or crested iris.[1]




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Section Limniris (listed in alphabetical order) Series Californicae Pacific Coast irises
Series Chinenses (from east Asia)
Series Ensatae
Series Foetidissimae
Series Hexagonae (known as the Louisiana irises)
Series Laevigatae (which includes the Japanese irises)
Series Longipetalae (Rocky Mountain or long-petaled iris)
Series Prismaticae (contains just one species from America)
Series Ruthenicae
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Series Sibiricae (Siberian irises)
Series Spuriae
Series Syriacae (species with swollen leaf bases and spiny bristles)
Series Tenuifoliae (mostly semi-desert plants)
Series Tripetalae (mostly having three petals)
Series Unguiculares
Series Vernae (contains just one species from America)
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Section Lophiris
- Iris confusa – Bamboo Iris
- Iris cristata – Crested Iris
- Iris formosana Ohwi
- Iris gracilipes A.Gray
- Iris henryi A.Gray
- Iris japonica Thunb.
- Iris lacustris – Dwarf Lake Iris
- Iris latistyla Y.T.Zhao
- Iris milesii Foster

Iris milesii - Iris speculatrix Hance
- Iris subdichotoma Y.T.Zhao
- Iris tectorum Maxim. – (Wall Iris)
- Iris tenuis S.Wats. – (Clackamas Iris)
- Iris wattii Baker ex Hook.f.
Section Unguiculares
- Iris lazica Albov
- Iris unguicularis Poiret
Unplaced hybrids
- Iris thompsonii R.C.Foster – (Thompson's Iris) (formerly in I. innominata)
- Iris × robusta E.Anderson. – (Robust Iris) (I. versicolor × I. Virginica)
- Iris × sancti-cyriJ.Rousseau – (Saint-Cyr iris) (I. hookeri × I. versicolor)
Subgenus Xiphium
Smooth-bulbed bulbous irises. Formerly genus Xiphion.

Section Xiphium
- Iris boissieri Henriq
- Iris filifolia Boiss.
- Iris juncea Poir.
- 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
Subgenus Nepalensis
Bulbous irises. Formerly genus Junopsis.
Section Nepalensis
- Iris collettii Hook.
- Iris decora Wall.
- Iris staintonii H Hara
- Iris barbatula Noltie & Guan
Subgenus Scorpiris
Smooth-bulbed bulbous irises known as "junos". Formerly genus Juno.

Section Scorpiris
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See more species listed in 'Scorpiris' subgenus.

