Résumé
The recent increase in the known richness of Limonium in Tunisia, mainly due to the description of 25 new endemic species in the last decades, has made the only existing identification key for the country obsolete. Based on an exhaustive review of the literature dealing with Limonium from Tunisia, consultation of herbarium specimens preserved in Tunisia and Sicily, and a number of new collections, we propose here a new complete key, accompanied by an updated mapping for all taxa. The obtained results reveal that most Tunisian Limonium are perennial herbs (81 %), halophytes (79 %), endemic to the country (61 %), and mainly distributed along coasts and around chotts. A significant number of taxa (51 %) present important conservation issues, mainly related to microendemism (especially on islands and peninsulas) and to the alarming acceleration of habitat degradation. Djerba Island is currently the subject of a project involving local authorities, residents and environmental protection associations aimed at conserving the microendemic Limonium formosum, whose only location is threatened in the short term by a project to turn it into a tourist attraction.