Bupleurum eskisehiricum (Apiaceae), a new species from Türkiye

Some interesting Bupleurum (Apiaceae) specimens with very branched stems, (1–)2-rayed inflorescences and ivory-white bracteoles were collected from Tepebaşı District (Eskişehir Province). The specimes, at first glance, resembled the Bupleurum sulphureum (sect. Aristata) species, which is endemic in Türkiye, as a habit. However, as a result of detailed examination, it was determined that there were some differences. Based on these differences, the specimens were presented to the scientific world as a new species and were named Bupleurum eskisehiricum. The fact that the inflorescences are (1–)2 rays (not ((3–)4(–5)); the bracts are 4–5 mm long (not 7–12(–20) mm); the bracteoles are ivory-white and with arista up to 0.5 mm long (not sulphur-yellow and with arista 1.2–2.5 mm); the petals milky-white (not yellowish); the styles 0.6–0.7 mm long (not 0.4–0.5 mm) and the mericarps 2.73.1 mm long (not 2.2–2.4 mm) are the most obvious attributes that separate Bupleurum eskisehiricum from B. sulphureum, that is a close species. Here, a detailed description of the new species, informative photographs, and some ecological preferences were given.