Iris collettii Hook.f. (E. Himalaya to S. Central China and Indo-China: Doubtfully present in: Nepal; China South-Central, East Himalaya, Myanmar, Thailand, Tibet, Vietnam as per POWO)
Iris × germanica L. (Introduced)
Iris x hollandica H.R.Wehrh. (Great Britain; West Himalaya as per CoL)
Iris japonica Thunb. (Introduced)
Iris pseudacorus L. (Introduced)
Iris reticulata M.Bieb. (Introduced) (E. Turkey to Iran: Iran, Iraq, North Caucasus, Transcaucasus, Turkey; Introduced into: West Himalaya as per POWO)
Iris spuria L. (Introduced)
Iris tectorum Maxim. (Cultivated)
Iris variegata L. (Cultivated)
An important document for Monocots taxa of India is FLORAE INDICAE ENUMERATIO: MONOCOTYLEDONAE written by S. KARTHIKEYAN, S.K. JAIN, M.P. NAYAR & M. SANJAPPA and published by Botanical Survey of India, Calcutta in 1989. In this document (Karthikeyan et al. 1989) following species of Iris are mentioned growing in India:
1- Iris aitchisonii (Baker) Boiss. (Northwest India)
2- I. aurea Lindl. (Northwest Himalaya) [synonym of I. crocea Jacquem. ex R.C. Foster]
3- I. clarkei Baker ex Hook.f. (Himalaya)
4- I. decora Wall. (Temperate Himalaya, Northeast India)
5- I. deflexa Knowles & Westc. (India) [synonym of I. x germanica L.]
6- I. duthiei Foster (Western Himalaya) [synonym of I. kemaonensis Wall. ex D. Don]
7- I. ensata Thunb. (Western Himalaya)
8- I. germanica L. var. nepalensis (Wall. ex Lindl.) Herb. (Western to Central Himalaya) [synonym of I. x germanica L.]
9- I. goniocarpa Baker (Central to Eastern Himalaya)
10- I. hookeriana Foster (Western Himalaya)
11- I. kemaonansis Wall. ex D. Don (Himalaya)
12- I. kashmeriana Baker (Western Himalaya)
13- I. longifolia Royle (India) [synonym of I. ensata Thunb.]
14- I. milesii Baker ex Foster (Western Himalaya)
15- I. spuria L. (Northwest Himalaya)
16- I. stantonii Hara (Nepal)
17- I. wattii Baker ex Hook.f. (Northeast India)
Scrutiny of names in Plant List indicate some of them as synonyms which are mentioned in square brackets [ ]
No Iris species is mentioned in Red Data Book of Indian Plants by Nayar & Sastry, 1987-90)
From Floral Database of Tamilnadu :
FRLHT Indian Medicinal Plants Nomenclature Database with images/ herbarium, distribution, local names etc. :
Species with description & pictures in Flowers of India as on 27.2.14:
Iris spuria subsp. sogdiana is a synonym of Iris halophila var. sogdiana (Bunge) Grubov
Floriculture in India By Gurcharan Singh Randhawa, Amitabha Mukhopadhyay (1986)-
Iris : 3 posts by 2 authors.
I have updated eFI (efloraofindia) page on Iris
Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other links.
Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.
If someone can provide complete list of Indian species with source references it will be wonderful.
Any comments/ corrections are welcome.
I have added list of species of Iris in India based on a BSI document (Karthikeyan et al. 1989). Since it is 25 years old the list may not be up-to-date.