Reporting Potentilla botschantzeviana Adylov (Syn: Potentilla butkovii var. botschantzeviana (Adylov) Soják) (Rosaceae) as a new record species for the flora of Iran

Potentilla botschantzeviana (Syn: P. butkovii var botschantzeviana (Adylov) Soják is reported as a new record species from N Iran for the first time. This species is identified by petioles with suppressed erecto - patent hairs; deeply divided leaflets with sparse crispate, erect indumentum especially on underside and with flower diameter of 1.2 cm. The morphological characters of Potentilla botschantzeviana (especially long style thickened at the base) are similar to the species of section Persicae (Th. Wolf) Juz., the largest section of the genus in Iran, including 12 endemic species. The photographs of plant at the flowering stage, different parts, indumentum ultra structure and distribution map are presented