Caprini is one of the largest sections belonging to the genus Astragalus with 280 species. Astragalus Sect. Caprini are revised. This section has 171 and 115 species in Flora Iranica area and Iran, respectively. During the work, plant specimens preserved in Ferdowsi University of Mashhad, Herbarium (FUMH) were indentified from different regions of Khorassan provinces. Also, distribution of regions in different parts of this section are presented. Based on this study, 37 species of this section are known in Khorassan provinces. A. kushkensis in Flora Iranica has been recorded from Turkmenistan and Afghanistan and is reported from NE. of Khorassan, Torbate – jam, Saleh Abad as a new record for the flora of Iran. This plant is glabrous and has 18 – 22 pairs of leaflets. Leaflets are narrowing ovate and glabrous. Distribution regions of these taxa in different parts of Khorassan province are given.

Keywords: Astragalus, Caprini, Taxonomy, flora, New record, Iran, Khorassan

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