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Jurinea khorassanica from northeast Iran is described as a new species. Based on morphological characters it belongs to Jurinea sect. Stechmannia and its closest related taxa are the sympatric J. catharinae and J. dumulosa. However, the new species is obviously different from related species with respect to leaf, stem and head features. A detailed description, diagnostic table, illustrations and an updated key to the species of J. sect. Stechmannia in Iran are provided.

Cousinia brevicaulis is described and illustrated as a new species from eastern Iran. This species belongs to the C. sect. Lasiandra Bunge as defined by hairy anther tube, yellow, pale yellow or rarely milky flowers, monocarpic growth form and corymbose branching of stem. It is easily distinguished from other species of the section by its very short-stemmed habit. The new species is distributed in the same region as other species of C. sect. Lasiandra.

Cousinia kermanensis sp. nov. (sect. Congestae Bunge) and C. pulcherantha sp. nov. (sect. Leiocaules Bunge) are described from Kerman in southeastern Iran. These species are compared to their closest related species, C. decurrens Regel and C. oophora Rech. f., respectively. The habitat of C. kermanensis is lowland mountains or hills with poor soils inside the steppe of Artemisia sieberi Besser. Cousinia pulcherantha grows on highland slopes of mountains with deep soils inside the steppe of Artemisia aucheri Boiss. Illustrations of the new species are presented.

Jurinea giviensis sp. nov. (sect. Corymbosae Benth.) is described from northwestern Iran. The new species is morphologically compared with the closely related species J. tzar-ferdinandii Davidov and J. multiflora (L.) B. Fedtsch., and the sympatric J. heterophylla (Jaub. et Spach) Boiss. Relevant description, a diagnostic table and illustrations are provided.