Assadi, M. 1983: Plants from N. Azarbayejan, new to Iran.  -Iran. Journ. Bot. 2 (1): 1 - 8.
                                                                                                                - 1984: New and interesting plant records from Iran.  -Iran. Journ. Bot. 2(2): 83 - 94.
                                                                                                                - 1987: Plants of Arasbaran Protected Area, NW. Iran (part I).  -Iran. Journ. Bot. 3(2): 129 - 175.
                                                                                                                - & Wendelbo, P. 1978: New and interesting plant records from NW. Iran.  -Iran. Journ. Bot. 1(2): 97 - 108.
                                                                                                                Bhattacharjee, R. 1982: Stachys. In P.H. Davis (ed.) Flora of Turkey 7: 199262. -Edinburgh.
                                                                                                                Boissier, E. 1875: Flora Orientalis 3. -Basiliae.
                                                                                                                - 1879: Salvia. In Flora Orientalis 4: 590 - 636. -Basiliae.
                                                                                                                Bor, N.L. 1970: Gramineae. In K.H. Rechinger (ed.) Flora Iranica no. 70. -Graz.
                                                                                                                Chamberlain, D.F. & Matthews, V.A. 1970: Astragalus. In P.H. Davis Flora of Turkey 3: 49 - 254. - Edinburgh.
                                                                                                                Chretek, J. & Krisa, B. 1977: Polygalaceae. In K.H. Rechinger (ed.) Flora Iranica no. 124. -Graz.
                                                                                                                Cullen, J. 1966: Papaveraceae. In K.H. Rechinger (ed.) Flora Iranica no. 124. -Graz.
                                                                                                                 
                                                                                                                Damboldt, J. 1976: Materials for a Flora of Turkey 32: Campanulaceae. -Not. Roy. Bot. Gard. Edinb. 35: 39 - 52.
                                                                                                                - 1978: Asyneuma In P.H. Davis (ed.) Flora of Turkey. 6: 65 - 81. -Edinburgh.
                                                                                                                Davis, P.H. 1965: Ranunculus. In P.H. Davis (ed.) Flora of Turkey 1: 146 - 197. -Edinburgh.
                                                                                                                - & Leblebici, E. 1982: Calamintha. In P.H. Davis Flora of Turkey 7: 323 - 329. -Edinburgh.
                                                                                                                - & Stuart, D. C. 1984: Muscari. In P.H. Davis Flora of Turkey 8: 245 - 263. -Edinburgh.
                                                                                                                Edmondson, J. R. 1978: The genus Doronicum L. in Iran. -Not. Roy. Bot. Gard. Edinb. 37: 67 - 73.
                                                                                                                Ehrendorfer, F. 1982: Crucianella. In P.H. Davis (ed.) Flora of Turkey 7: 725 -733. -Edinburgh.
                                                                                                                - & Schönbeck - Temesy, E. 1982: Galium. In P.H. Davis (ed.) Flora of Turkey 7: 767 - 849. -Edinburgh.
                                                                                                                Fröhner, S. 1969: Alchemilla. In K.H. Rechinger Flora Iranica no. 66: 124147. -Graz.
                                                                                                                Grossheim, A.A. 1940: Flora Kaukasa vol. 2. -Moskva & Leningrad.
                                                                                                                - 1950 : Flora Kaukasa vol. 4. -Moskva & Leningrd.
                                                                                                                - 1952: Crataegus. In Flora Kaukasa 5: 39 - 44. -Moskva & Leningrad.
                                                                                                                Hedge. I.C. 1982: Salvia. In K.H. Rechinger (ed.) Flora Iranica no. 150: 403476. -Graz.
                                                                                                                - & Lamond, J. M. 1982: Nepeta. In P.H. Davis (ed.) Flora of Turkey 7: 264 - 288. -Edinburgh.
                                                                                                                Kazmi, S.M. A. 1964: Revision der Gattung Carduus. -Mitt. Bot. München, Band 5: 279 - 550.
                                                                                                                Khatamsaz, M. 1985: The genus Cotoneaster Medik. in Iran, new records and Key. -Iran. Journ. Bot. 3(1): 55-62.
                                                                                                                Krechetovich, V.I. 1935: Carex. In Komarov, Flora of the USSR 3: 111 - 464. -Moskva & Leningrad.
                                                                                                                Mc Neill, J. 1963: Taxonomic studies in the Alsinoideae II. A revision of the species in the Orient. -Not. Roy. Bot. Gard. Edinb. 24(3): 241 - 404.
                                                                                                                Nevski, S.A. & Sochava V.B. 1934: Bromus. In V.L. Komarov Flora of the USSR 2: 554 - 583. -Moskva & Leningrad.
                                                                                                                Parsa, A. 1948: Crataegus. In Flore d l'Iran 2: 550 - 555. -Tehran.
                                                                                                                - 1951: Melandrium, Ibid. 1: 1140 - 1145. -Tehran.
                                                                                                                Pojarkova, A. J. 1954: Nepeta. In Komarov (ed.) Flora of the USSR 20: 286 - 437. -Moskva & Leningrad.
                                                                                                                Raddcliff Smith, A. 1982: Euphorbia. In P.H. Davis (ed.) Flora of Turkey 7: 571 - 630. - Edinburgh.
                                                                                                                Rechinger, K.H. 1968: Erysimum. In. K. H. Rechinger (ed.) Flora Iranica no. 57: 285 - 305. -Graz.
                                                                                                                - 1969: Valeriana. Ibid. no. 62: 17 - 22.
                                                                                                                Rechinger, K.H. 1977: Hieracium. Ibid. no. 122: 171 - 180.
                                                                                                                - 1979: Carduus. Ibid. no. 139a: 218 - 230.
                                                                                                                - 1982a: Nepeta. Ibid. no. 150: 108 - 216.
                                                                                                                - 1982 b: Stachys. Ibid. no. 150: 354 - 396.
                                                                                                                - 1984: Onobrychis. Ibid. no. 157: 387 - 484.
                                                                                                                             - & Schiman - Czeika, H. 1965: Campanula. Ibid. no. 13: 7 - 38.
                                                                                                                - 1964: Euphorbia. Ibid no. 6: 8-46.
                                                                                                                - 1968: Polygonum. Ibid. no. 56: 46-83.
                                                                                                                Renz, J. 1978: Orchidaceae. In K.H. Rechinger (ed.) Flora Iranica no. 126. -Graz.
                                                                                                                Riedl, H. 1969: Crataegus, In K.H. Rechinger (ed.) Flora Iranica no. 66: 49 - 65. -Graz.
                                                                                                                Shishkin, B.K. 1936: Caryophyllaceae. In V.L. Komarov Flora of the USSR 6: 386 - 870. - Moskva & Leningrad.
                                                                                                                Townsend, C.C. 1974: Astragalus. In Townsend (ed.) Flora of Iraq 3: 231 - 445. -Glasgow.
                                                                                                                Tsvelev, N.N. 1976: An. A. Fedorov (ed.) grasse's of the Soviet Union. -Leningrad.
                                                                                                                Wendelbo, P. 1965: Sambucus. In K.H. Rechinger (ed.) Flora Iranica no. 10: 1 - 2. -Graz.
                                                                                                                Yeo, P.F. 1981: Euphrasia. In K.H. Rechinger (ed.) Flora Iranica no. 147: 172 -184. -Graz.