When the environmental factor changes beyond a certain level; plants especially endemic restricted species try to adapt to be away from the extinction zone. However, not all plants have the same ability to adapt to the new changes. Its become well known that plants lose its diversity with time as a result of population growth and resource consumption, climate change and global warming, habitat conversion and urbanization, invasive alien species, over-exploitation of natural resources and environmental degradation. The IUCN Red List of Threatened Species highlights species that are at the greatest risk of extinction and promotes their conservation by ‘concentrating minds on true priorities’. The Red List data are a source of information that is essential to guide conservation efforts focused on species. In this book we will try to enhance the understanding about the IUCN Red List Categories & Criteria through deep assessment on the conservation status of endemic plant species Primula boveana according to IUCN criteria in order to produce a series of recommendations for conservation action.