Mohammad Mahmoodi - استادیار پژوهش موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران
Mostafa Assadi - استاد پژوهش موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

Acantholimon hamadanicum is described and illustrated as a new species from Hamadan province, in W Iran. The new species belongs to the Acantholimon sect. Acantholimon (Plumbaginaceae) and is closely related to A. wendelboi, but differs from it by glabrous stems and leaves and also the color of calyx limb between the nerves. A distribution map of the new species and its close relatives is provided and the habitat condition, as well as the conservation status of A. hamadanicum are discussed.

Acantholimon hamadanicum, new species, Acantholimon sect. Acantholimon, Hamadan province, Iran, Endemic