Akhani, H .1996: Studies on the flora and vegetation of the Golestan National Park, NE Iran, I: A new species and some new plant records. -Ann. Naturhist. Mus. Wein, 98 –B suppl: 97-105.
Anonymous . 2006: The list of wetlands of International Importance. Switzerland. (http://www.ramsar.org/sitelist)
Bobrov, E. G.1945: Melilotus Miller in V. L. Komarov (ed). Flora of the USSR. Vol.11:135-145. -Izdatel’stovo Akademii Nauk SSSR Moskva-Leningrad. (Translated from Russian to English by Dr. N. Landau, Israel program for Scientific translations Jeursalem 1971).
Davis, P. H. 1984.: Flora of Turkey and the East Aegean Islands Vol. 8: 381-450. – Edinburgh.
Fedchenko, B. A.. 1935: Sisyrinchium in V.L. Komarov (ed.) Flora of the USSR vol. 4: 439-440. Izdatel’stvo Akademii Nauk SSSR Leningrad. (translated by N. Landau, 1968, Israel program for scientific translation, Jerusalem).
Gorshkova, S. G.1959: Tagetes in B. K. Shishkin (ed.) Flora of the USSR vol. 25. translated by Doon Scientific translation Co. Bishen Singh Mahendra Pal Singh and Koeltz Scientific Books (1990).
Hamzeh’ee, B. & Jalili A. 2002: A new plant report and an intersting record from Iran. -Iran. J. Bot. 9 (2): 187-190.
Hansen, A.1968: Melilotus Miller in T. G. Tutin, V. H. Heywood, N. A. Burges, D. M. Moore, D. H. Valentine, S. M. Walters & D. A.Weeb (eds.) Flora Europaea. vol. 2:148-150. -Cambrige University Press.
Ingram, R. 1980: Sisyrinchium Miller in T. G. Tutin, V. H. Heywood, N. A. Burges, D. M. Moore, D. H. Valentine, S. M. Walters & D. A.Weeb (eds.) Flora Europaea. vol. 5: 86-87. -Cambridge University Press.
Mathew, B. & Wendelbo, P. 1975: Iridaceae in K.H. Rechinger (ed.) Flora Iranica. no. 112: 1-79. -Graz: Akademische Druck und Verlagsanstalt.
Mazhari, N, 2000: Iridaceae in Assadi et al. Flora of Iran no. 31. –Tehran.
Moussavi, S. M. 2001: Species of Melilotus in Iran (Key to the species Description and their distributions). -Rostaniha. 2 (1-4): 41-43.
Mozaffarian, V. 2007: Umbelliferae in M. Assadi et al. Flora of Iran no. 54. –Tehran.
Munz, P. A. & Keck, D. D. 1968: A California Flora. vol: 2: 1160. -University of California Press.
Nasir, E.1972: Apium in E. Nasir & S. I. Ali Flora of West Pakistan no.20: 32-34. -Pakistan Agricultural Research Council.
Rechinger, K. H. 1984: Melilotus Miller in K. H. Rechinger (ed.) Flora Iranica. no. 157: 199-206. -Graz: Akademische Druck und Verlagsanstalt.
Rechinger, K. H. 1987: Apium (Apiaceae) in K. H. Rechinger (ed.) Flora Iranica no. 162: 298-300. -Graz: Akademische Druck und Verlagsanstalt.
Schinners, L. H. 1962: Annual Sisyrinchium (Iridaceae) in the United States. -Sida 1(1): 32-42.
Stevenson, G. A. 1969: An agronomic and taxonomic review of the genus Melilotus Mill. -Canad. J. Plant. Sci. 49: 9.
Tutin, T. G. 1968: Apium in T. G. Tutin, V. H. Heywood, N. A. Burges, D. M. Moore, D. H. Valentine, S. M. Walters & D. A.Weeb (eds.) Flora Europaea. vol. 2: 352. -Cambridge University Press.
Tutin, T. G. 1968: Tribe Helenieae in T. G. Tutin, V. H. Heywood, N. A. Burges, D. M. Moore, D. H. Valentine, S. M. Walters & D. A.Weeb (eds.) Flora Europaea. vol. 4:144. -Cambridge University Press.
Wiersema, J. H., Kirkbride, J. H. & Gunn, C. R .1990: Legume Nomenclature USDA Germplasm Sys. USDA Tech. Bull. 1757.
Zohary, M. 1973: Geobotanical Foundations of the Middle East. 2 vols. -Fischer Verlag, Stuttgart, Amsterdam. 739 pp.