Bunge, A. 1868–1869: Generis Astragali species Gerontogeae. Pars prior, claves diagnosticae. – Mém. Acad. Imp. Sci. St Pétersburg, ser. 7, 11: 1–140, Pars altera, Specierum enumeratio, ser. 7, 15: 1–245.
Gontscharov, N. F. 1946: Leguminosae, Astragalus in Komarov, V. L. (ed.), Flora SSSR, 12. –Moskva & Leningrad.
IUCN. 2001: IUCN Red List Categories and Criteria Version 3.1. Prepared by the IUCN Species Survival Commission. – IUCN, Gland, Switzerland and Cambridge, U.K.
Karamian, R. & Ranjbar, M. 2005: Astragalus sect. Astragalus (Fabaceae) in Iran. – Botanical Journal of the Linnean Society, 147: 363–368.
Lock, J. M. & Simpson, K. 1991: Legumes of West Asia, a check-list. – Royal Bot. Gardens, Kew.
Maassoumi, A. A. 2003: Astragalus sect. Pendulina in Assadi, M. & al. (eds.), Flora of Iran, 43:108–109. Islamic Republic of Iran, Ministry of Jahad-e Sazandegi, Research Institute of Forests and Rangelands, Tehran.
Maassoumi, M., & Ranjbar, M. 1994:Two new species of the genus Astragalus (Papilionaceae) from Iran. – Iranian Journal of Botany, 6: 251–253.
Mabberley, D. J. 1997: The plant book. A portable dictionary of the vascular plants, 2
nd ed. – Cambridge Univ. Press, Cambridge.
Podlech, D. 1999:Astragalus sect. Pendulina in Rechinger, K. H., (ed.), Flora Iranica, 174:151–154.
Ranjbar & Karamian, R. 2002:Astragalus sect. Astragalus (Fabaceae) in Iran, complementary notes with a key to the species. – Nordic Journal of Botany, 22:177–181.
Ranjbar, M., Maassoumi, A. A. & Podlech, D. 2002: Astragalus sect. Alopecuroidei (Fabaceae) in Iran, complementary notes with a key to the species. – Willdenowia, 32: 85–91.
Yakovlev, G. P., Sytin, A. K. & Roskov, J. R. 1996: Legumes of Northern Eurasia, a check-list. –Royal Bot. Gardens, Kew.