A new species, Hypericum aladaglariense , is described and illustrated from Yahyalı, Kayseri Province in Türkiye. The new species belongs to Hypericum sect. Taeniocarpium . It is related to H. linarioides, H. armenum, and H. theodori , which differs by its leaves, bract, bracteole, sepal, and petal features. The diagnostic characteristics of Hypericum aladaglariense and related taxa are discussed. The ecology, conservation status, and geographical distribution of the new species are presented. The pollen and seed morphological properties of the new species and its most closely related species were investigated and compared using a light microscope (LM) and scanning electron microscope (SEM).
Duman et al. (Fri,) studied this question.