Argus, G. W. 1997: Infrageneric classification of Salix (Salicaceae) in the New World. -Systematic Botany Monographs. American Society of Plant Taxonomists, USA. 52: 1–121.
Argus, G. W. 1999: Classification of Salix in the New World. -Botanical Electronic News. No. 227.
Argus, G.W. 2004: A Guide to the identification of Salix (willows) in Alaska, the Yukon Territory, and adjacent regions. -workshop on willow identification.
Argus, G.W. 2007: Salix (Salicaceae) distribution maps and a synopsis of their classification in North America, North of Mexico. -Harvard papers Bot. 12: 335-368.
Azuma, T., Kajita, T. Yokoyama, J. & Ohashi, H. 2000: Phylogenetic relationships of Salix (Salicaceae) based on rbcL sequence data. –Amer. J. Bot. 87: 67–75.
Brunsfeld, S. J. & Anttila, C. K. 2004: Complexities in the phylogeny of Salix (Salicaceae). -Systematic Section/ASPT(Abstract).
Chen, J. H., Sun, H. Wen, J. & Yang, Y. P. 2010: Molecular phylogeny of Salix L. (Salicaceae) inferred from three chloroplast datasets and its systematic implications. –Taxon. 59: 29-37.
Decker, K. 2006: Salix arizonicaDorn (Arizona willow): a technical conservation assessment. [online]. USDA Forest Service, Rocky Mountain Region.
Douzery, E. J. P., Pridgeon, A. M. Kores, P. Linder H. P., Kurzweil, H. & Chase, M. W. 1999: Molecular phylogenetics of Diseae (Orchidaceae): A contribution from nuclear ribosomal ITS Sequences. –Amer. J. Bot. 86:887-899.
Doyle, J. J., &. Doyle, J. L. 1987: A rapid DNA isolation procedure for small quantities of fresh leaf tissue. - Phytochem. Bullet. 19: 11–15.
Fang-Zhen, F. 1987: On the distribution and origin of Salix in the world. -Acta Phytotax. Sinica 25: 307-312.
Felsenstein, J. 1985: Confidence limits on phylogenies: An approach using the bootstrap. -Evolution. 39: 783-791.
Hall, T. A. 1999: BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. - Nucl Acids Symp. Ser, 41: 95-98.
Hardig, T. M., Antilla, C. K. & Brunsfeld, S. J. 2010: A phylogenetic analysis of Salix (Salicaceae) Based on matk and Ribosomal DNA Sequence data. -J. B. 2010: 1-12.
Khalili, Z., Maassoumi, A. A., Ghahremaninejad, F. Mirzaie_Nodoushan. 2010: Foliar anatomy of some Salix species (Salicaceae) in Iran. -Iran. J. Bot. 16: 293-302.
Kimura, A. 1928: Uber Toisusu, eine neue Salicaceen-Gattung und die systematische Stellung derselben. –Bot. Mag. (Tokyo)42:287–290.
Larkin, M. A., Blackshields, G, Brown, N. P., Chenna, R, McGettigan, P. A., McWilliam, H., Valentin, F., Wallace. I. M, Wilm, A., Lopez, R., Thompson, J. D., Gibson, T. J. & Higgins, D.G. 2007: Clustal W and Clustal X version 2.0. -Bioinformatics, 23: 2947-2948.
Leskinen, E. & Alström-Rapaport, C. 1999: Molecular phylogeny of Salicaceae and closely related Flacourtiaceae: evidence from 5.8S, ITS1 and ITS2 of the rDNA .- Plant Syst. Evol. 215:209-227.
Maassoumi, A. A. Moeeni, F. & Rahiminejad, M. R. 2008: New species and new records of the genus Salix (Salicaceae) from Iran. –Iran J. Bot. 14: 1-6.
Maassoumi, A. A. 2009: Experimental taxonomy of the genus Salix L. (Salicaceae) in Iran. -Iran. J. Bot. 15: 3-20.
Nylander, J. A. A. 2004: MrModeltest v2. Program distributed by the author. -Evolutionary Biology Centre, Uppsala University.
Nuin, P. 2005: MrMTgui 1.0 (version 1.6). Program distributed by the author at http://www.genedrift.org/mtgui.php.
Ohashi, H. 2000: A systematic enumeration of Japanese Salix(Salicaceae). -J. Japan. Bot. 75:1-41.
Page, D. M. 2001: TreeView (Win32) Version 1.6.6. Available from: <http://taxonomy.zoology.gla.ac.uk/rod/rod.html/>.
Posada, D. & Buckley, T. 2004: Model selection and model averaging in phylognetics: Advantages of Akaike information criterion and Bayesian approaches over likelihood ratio tests. -Syst. Biol, 53:793–808.
Rechinger, K. H. 1964: Salix in Tutin & al. Flora Europaea 1: 43-54. -Cambridge.
Ronquist, F, & Huelsenbeck, J. P. 2003: MrBayes 3: Bayesian phylogenetic inference under mixed models. -Bioinformatics19: 1572–1574.
Swofford, D. L. 2002: PAUP*. Phylogenetic analysis using parsimony (*and other methods), version 4.0b10 (Alvitec). -Sunderland, Massachusetts: Sinauer Associates.
Skvortsov, A. K. 1969: Salix in K. H. Rechinger Fl. Iranica no. 65: 12-43. -Graz.
Skvortsov, A. K. 1999: Willows of Russia and adjacent countries, Taxonomical and geographical revision. English edition/Translated by I. N. Kadis. -University of Joensuu, Finland.
Taberlet, P., Gielly, L., Pautou, G. & Bouvet, J. 1991: Universal primers for amplification of three non-coding regions of chloroplast DNA. -Plant Mol. Biol. 17: 1105–1109.