Two new species, Astragalus ghahremaninejadii and A. kharvanensis are described from Iran and illustrated. They belong to A. sect. Dissitiflori, which contains species with bifurcate hairs. The first is similar to A. pendulinus, A. baldschuanicus, A. kustanaicus and properly A. marguzaricus and only known from a single collection close to the Turkmenistan frontier. The second shows morphological similarities with A. dendroproselius especially A. viridis. Also A. dendroproselius is reported as a new record for the flora of Iran.