Mahfouz Advay - Central Herbarium of Tehran University, School of Biology, College of Science, University of Tehran, Iran
Farideh Attar - Central Herbarium of Tehran University, School of Biology, College of Science, University of Tehran, Iran
Sakar Hama - College of Agriculture Engineering Sciences, University of Sulaimani, Iraq
Saman Abdolrahman Ahmad - College of Agriculture Engineering Sciences, University of Sulaimani, Iraq & Kurdistan Botanical Foundation, Sulaimani, Kirkuk Main Road, The American University in Iraq, Sulaimani, Iraq
Arash Sotoodeh - Agroécologie, INRAE, Institut Agro, Univ. Bourgogne Franche-Comté, F-۲۱۰۰۰ Dijon, France

Onosma safaie-fari (of O. subsect. Asterotricha) is described as a new species from western Iran. Onosma safaie-fari is morphologically similar to O. iranshahrii, but it is distinct in terms of the shape of sterile shoots and cauline leaves; length of fruiting calyx, shape, and width of calyx lobes; and color of the corolla. In addition, O. safaie-fari is similar to O. bisotunensis, but it is distinguished by the shape and length of lower bracts; length of the fruiting calyx; color and length of the corolla; length of the free part of filaments; the position of filaments arising from the corolla, and length of anthers. Onosma safaie-fari is close to O. shehbazii, but it can be distinguished from it based on the shape and length of sterile shoots and cauline leaves, length of lower bracts, length of fruiting calyx, color and length of the corolla, length of anthers, and the presence of a hairy nectary ring. Detailed descriptions, diagnostic characters, original photographs, illustrations, a geographical distribution map, habitat information, an image of the holotype specimen, and an identification key are presented.

flora of Iran, new species, Onosma, Endemic, Hawraman, Kurdistan, Iran