Symphytum ibericum Steven | Gagnidze, R. I., T. N. Gviniaschvili, M. G. Pataraia & L. D. Dzindzolia. 1985. Chromosome numbers in some high elevation species from the Big Caucasus. Bot. Zhurn. SSSR 70(12): 1698–1699. (In Russian). | 84-85 | | 24 |
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Symphytum ibericum Steven | Jaarsma, T. A., E. Lohmanns, H. Hendriks, T. Gadella & T. Malingré. 1990. Chemo- and karyotaxonomic studies on some rhizomatous species of the genus Symphytum (Boraginaceae). Pl. Syst. Evol. 169: 31–39. | 90-91 | | 24 |
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Symphytum ibericum Steven | Johnson, M. A. T. & P. E. Brandham. 1997. New chromosome numbers in petaloid monocotyledons and in other miscellaneous angiosperms. Kew Bull. 52(1): 121–138. | 96-97 | | 60 |
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Symphytum ibericum Steven | Gadella, T. W. J. & E. Kliphuis. 1978. Cytotaxonomic studies in the genus Symphyrum. VIII. Chromosome numbers and classification of ten European species. Proc. Kon. Ned. Akad. Wetensch., C 81: 162–172. | 75-78 | | 24 |
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