Floristic updates and a new species record for the Bulgarian flora

This paper presents new regional chorological data for eighteen plant taxa, derived from our own collections and personal field observations during the vegetation seasons from 2015 to 2025. One of the recorded species - Viola hymettia, is new to the Bulgarian flora. The remaining records document new occurrences of these taxa within different floristic regions of the country. Four of the listed taxa are protected under Bulgaria’s Biological Diversity Act and are categorised as threatened in the national Red List: Geranium palustre (VU), Gagea amblyopetala (VU), Romulea linaresii subsp. graeca (VU), and Parvotrisetum myrianthum (CR). Populations of Dipsacus gmelinii consist of critically low numbers of individuals and require urgent conservation measures. Additional information is provided on the habitats at the recorded sites, the state of the populations, the floristic composition, and relevant herbarium records.