Welcome to Iridaceae of the World

Iridaceae are important plants in the cut flower industry and in garden displays. Their natural distribution is nearly worldwide, with centers of diversity in South Africa and in temperate and highland South and Central America.

They are easily recognised by their three stamens (very rarely only two), inferior ovary, showy flowers either solitary or in clusters (rhipidia) and enclosed by a pair of opposed bracts; most of the time, the leaves are isobifacial, but many species in the genus Iris have heterobifacial leaves. Species are mostly perennial geophytes with a rhizome, corm or bulb; Sysyrinchium is a genus of predominantly annual species, and a few genera are somewhat woody (Klattia, Nivenia, Witsenia). Isophysis tasmanica is the only species of Iridaceae with a superior ovary.

There are currently 69 accepted genera and 2270 species. Most of the taxa do not yet have an IUCN red list assessment.

Creator: Goldblatt, P. Creative Commons Licence

Creator: Goldblatt, P. Creative Commons Licence

Creator: Goldblatt, P. Creative Commons Licence

Creator: Wood Creative Commons Licence
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith