Attar, F., Keshvari, F., Ghahreman, A., Zarre, Sh. & Aghabeigi, F. 2006: Micromorphological studies on Verbascum (Scrophulariaceae) in Iran with emphasis on seed surface, capsule ornamentation and trichomes. -Flora, 202: 169-175.
Dane, F. & Yılmaz G. 2002: Palynological study on some Verbascum L. species. -The third International Conference "Falz Fein Reading", 25-27 of April 2002, Abstract. P.151, Training Universty, Kherson , Ukraine.
Elisens, W. J. & Tomb, A. S. 1983: Seed morphology in new world Antirrhinae (Scrophulariaceae): Systematic and phylogenic implications. -Pl. Sys. & Evol, 142: 23-47.
Fahn, F. 1916: Plant Anatomy. Oxford. England, translated to Farsi by A. Jaafari. -Jihad Daneshgahi, Mashhad.
Huber Morath, A. 1978: Verbascum L. In: Davis, P.H. (Eds.), Flora of Turkey and the East Aegean Islands. -Edinburgh University Press, Vol. 6, pp: 461-600.
Huber Morath, A. 1981:Verbascum In: Rechinger Kh,Flora Iranica. No: 146-149:1-50. -Akademische Druck-u. Verlag sanastal. Graz. Austria.
Johansen, D.A. 1940: Plant Microtechnique. Mc Graw -Hill Book New York Company.
Juan R., Fernandez, I. & Pastor, J. 1997: Systematic consideration of microcharacters of fruits and seeds in the genus Verbascum (Scrophulariaceae). -Ann. Bot., 80: 591-598.
Juan R., Pastor J. & Fernandez I. 2000: SEM and light microscope observations on fruit and seeds in Scropholariaceae from southwest Spain and their systematic significance. -Ann. Bot., 86:323-338.
Judd, W.S., Campbell, C. S., Kellogg, E. A., Stevens, P. F., 2002: Plant Systematics: A phylogenetic Approach. -Sinauer, Sunderland.
Karaveliogullari, F. A. 1996: The Revision of Verbascum L. (groupA) in Turkey. -Gazi University Ins. of Sci. & Tech. Turkey.
Karaveliogullari, F. A., Duran, A. & Hamzaoglu, E. 2004: Verbascum tuna-ekimii (Scrophulariaceae), a new species from Turkey. -Ann. Bot., Fennici, 41: 227-23.
Kheiri S., Khayami M., Kazempour Osaloo S., & Mahmoodzadeh A. 2006: Pollen morphology of some species of Verbascum (Scrophulariaceae) in Urmia., -Pakistan J. Biol. Sci. 9(3): 434-436
Lersten N.R & Curtis J.D. 1997: Anatomy and distribution of foliar idioblasts in Scrophularia and Verbascum (Scrophulariaceae). -American J. Bot., 84(12): 1638-1645.
Lersten, N.R. & Curtis J.D.2001: Idioblasts and other unusual internal foliar secretory structures in Scrophulariaceae. -Plant Syst. Evol.227; 63-73
Murbeck, S., 1933: Monographie der Gattung Verbascum. -Lund Univ. Arssk 29 (2), 1-630.
Olgun, G., Dane, F. 1995: SEM survey of seed morphology of Verbascum lagurus Fisch. et Mey. and Verbascum phlomoides L., Turkish J. Medical Sci. XII.th National (Congress on Electron Microscope, 11-15 September), 118, Antalya-Turkiye.
Sharifnia, F. 2007: Notes on the distribution and taxonomy of Verbascum in Iran. -Iranian J. Bot. 31(1): 30-32. Tehran
Valdes, B., 1987: Scrophulariaceae In: Valdes, B., S. Talvera & E. Fernandez Galiano, Eds. Flora Vascular De Andalucia Occidental. 2. -Barcelona: Ketres, pp: 486-547.
Zohary M., 1973: Geobotanical Foundations of Middle East. -Jerusalem: Israel. Hebrew university, pp: 307-329.
)
