The Iris Encyclopedia (Wiki) is an amazing online resource. Information on types of irises, hybridisers, awards, propagation, and a list of all irises registered.
The Beardless Iris Society was formed in June 1976 as a section of The British Iris Society to foster interest in beardless irises around the world by the exchange of ideas, seeds and plants. Website contains publications which you can download and enjoy without charge.
Objective: To encourage, improve and extend the study and cultivation of the Genus Iris and to collaborate with Iris Societies in other countries to regulate the nomenclature, classification and registration of irises.
SIGNA is devoted to studying the Iris family in the wild as well as enjoying them in the garden. Scientific and cultural information on species and hybrids is available to the public via this website.