Due to the existence of numerous plant species and their vast habitats, time and budget limitation, facility deficit, as well as a low number of experts, it is impossible to evaluate and conserve all habitats. Iran, located in the southwest of Asia, is one of the principal cores for diverse and endemic species that belong to Liliaceae family, which are endangered due to some threatening factors. So far, no study has been conducted on their distribution patterns and the protection necessities for this family in Iran. Therefore, this study tries to act on the
conservation and management of the Liliaceae family members in this country. The distribution dataset for Liliaceae includes ۱۳۲۷ points, which were collected from field-work, Shahid Beheshti University's herbarium, Wien's virtual herbarium, University of Wien, Geneva, and Kyoto's herbarium images, Iranica and Iranian floristic dataset, and published articles for different regions of Iran. The information in regards to the exact species names was obtained from IPNI and plant-list sites. The latitude, longitude, and altitude of the species occurrences were entered in ArcGIS, and the distribution maps of the genus and its species were prepared. The results of this study showed that Liliaceae family in Iran includes ۷۳ species, ۲۷% of which are endemic. The principle distribution cores of the species are mostly in Alborz and Zagros regions. The critical, vulnerable, endangered, and threatened categories comprise ۳۰%, ۱۰%, ۷۱.۵%, and ۱.۴۲% of the whole species investigated in this study. The use of domestication methods based on people's participation (especially people living in areas with a high diversity of these species) while reducing the pressure of exploitation and damage by creating sustainable livelihoods and economic prosperity leads to a better protection of those species. In addition, the number of endangered species in this family, a wide range of which is located outside protected areas, emphasize the importance of planning for regular and accurate ecological and genetic monitoring in areas with high diversity and endemism rate, in order to provide sustainable management for these species.