Barkworth, M. E. &J. Everett 1987: Evolution in the Stipeae: Identification and relationships of itsmonophyletic taxa. -In: Sodestrom TR &al.,eds. Grass Systematics and Evolution. Washington, DC. Smithsonian Institution Press, 251-264.
Bor, N. L 1970: Stipa in K. H. Rechinger Flora Iranica. no.70: 377-400. -Graz.
Freitag, H 1985: The genus Stipa (Gramineae) in Southwest and South Asia. -Notes from the Royal Botanic Garden, Edinburgh 33 (3): 341-408.
Hartley, W 1973: Studies on the origin, evolution and distribution of the Gramineae. -Aust. J. Bot. 21: 201-234.
Hsiao, C., N. J. Chatteron&K. H. Asay 1995: Molecularphylogeny of the Poideae (Poaceae) based on nuclearrDNA (ITS) sequences. -Theor. Appl. Genet. 90: 389-398.
Jacobs, S. W. L., J. Everett, M. E. Barkworth&C. Hsiao 2000: Phylogeneticrelationshipswithin the Stipeae pp.75-82. In: Jacobs, S.W.L &J. Everret (eds.). Grasses: Systematics and Evolution. Collingswood, Australia.
Johnson, B. L 1962: Amphiploidy and introgression in Stipa. -Ammer. J. Bot. 49: 253-262.
Mobayen, S 1975: Stipa in Rostanihaye Iran vol. 1: 359-364. -University of Tehran.
Parsa, A 1951: Stipa in Flore de l'Iran. vol. 2: 584-594. -University of Tehran.
Renvoize, S. A 1985: A survey of leaf-bladeanatomy in grasses. Stipeae. -Kew Bulletin 40: 731-736.
Sanchez-Yelamo M. D, M. C, Espenjo-Ibanez, J. Francisco-Ortega & A Santos-Guerra 1995: Electrophoreticalevidence of variation in populations of the fodderlegumeChamaecytisusproliferusfrom the CanaryIslands. -Biochem. Syst. Ecol. 23: 53-63.
Sheidai, M., M. Arman, A. M. Saeed., & B. Zehzad 2000: Notes on cytology and seedproteincharacteristics of Aegilops species in Iran. -The Nucleus 43: 18-128.
Tzvelev, N. N 1989: The system of grasses (Poaceae) and theirevolution. -The Bot. Rev. 55 (3): 141-205.
Vazquez, F. M. &J. A. Devesa 1997: Two new species and combinations of Stipa L. (Gramineae) fromnorthWest Africa. -Bot. J. Linn. Soc.124: 201-209.
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