Astragalus melanocalyx Accepted Name Astragalus melanocalyx Boiss. & Buhse, Nouv. Mém. Soc. Imp. Naturalistes Moscou 12: 59. 1860. Synonyms Tragacantha melanocalyx (Boiss. & Buhse) Kuntze. Regional Endemic SW Asia Distribution Pattern SW Asia ( Iran ) Local Endemic Iran Chromosome Number Note Admin2020-05-23T03:00:39+00:00