Assessing the conservation status of Crambe tataria Sebeók in Romania: distribution patterns and population evaluation methods

Crambe tataria Sebeók (Brassicaceae family) is a rare and vulnerable perennial steppe species with a fragmented distribution in Central and Eastern Europe. It is listed as vulnerable on the IUCN Red List, protected under national legislation, and included in Annex II of the Habitats Directive (92/43/EEC). Our field studies and literature review indicate that the species occurs mainly in steppe and forest-steppe regions in southern and eastern Romania. Population assessments in Romania show a favorable conservation status over three reporting periods to the European Commission. However, our field observations and monitoring reveal considerable variability in monitoring methods among experts, underscoring the need for standardized protocols to ensure accurate population evaluation and more effective conservation of the species. We can specify that, due to the fragility of habitats integrating Crambe and their multiple threats, the over-dimensioned population assessment does not take into account the growing strategies of the species. Therefore, the species remains at risk at the national level, and its conservation status requires urgent clarification to guide effective management measures.