R. Boissieri, an erect shrub, 3-4 m high, similar to the European R. montana, with white to dark pink flowers, 50-60 mm in diameter; habitat: Azerbaijan, Tehran province (Lavāsān), Khorasan (Ḵātamsāz, p. 50); also reported from Iraqi Kurdistan, Anatolia, etc. (Zieliński, p. 17).
