In this contribution, the conservation status assessment of four vascular plants according to IUCN categories
and criteria are presented. It includes the assessments of Aurinia leucadea (Guss.) K.Koch, Chondrilla chondrilloides
(Ard.) H.Karst., Daphne cneorum L., and Ophioglossum azoricum C.Presl at regional level (Italy).