Sayed Reza Safavi - Research Institute of Forests and Rangelands, P.O. Box ۱۳۱۸۵-۱۱۶, Tehran, Iran, Agricultural Research, Education and Extension Organization (AREEO).
Mohammad Amini Rad - Research Institute of Forests and Rangelands, P.O. Box ۱۳۱۸۵-۱۱۶, Tehran, Iran, Agricultural Research, Education and Extension Organization (AREEO).

A new species of Scorzonera (subgen. Scorzonera sect. Nervosae Lipsch.) is described and illustrated. Scorzonera alborzensis Safavi & Amini Rad collected from Siah Sang mountain in Central Alborz. It is related to the Scorzonera cinerea Boiss., in which it can be distinguished by the stems form and size, leaves size and arrangement, involucral bracts size, and achene size. An illustration and a scanned image of the type specimen of the new species are provided.

Scorzonera, new species, Alpine flora, Iran