Symphytum asperum

Familia: Boraginaceae
Subfamilia: Boraginoideae
Tribus: Boragineae
Subtribus: Boragininae
Genus: Symphytum
Species:
Nothospecies: S. × hidcotense – S. × perringianum – S. × uplandicum

Symphytum asperum Lepech., Nova Acta Acad. Sci. Imp. Petrop. Hist. Acad. 14: 442 (1805).

• Riedl, H.U. 1964. Boraginaceae. In: Rechinger, K.H. (ed.) Flora Iranica. Vol. 48. 281 pp., Akademische Druck- u. Verlagsanstalt Graz. Reference page. 
• Tamanian, K.G. 2011. Конспект семейства Boraginaceae в Армении. Checklist of Boraginaceae Juss. family in Armenia. Takhtajania 1: 60–69. PDF Reference page. 
• Tarıkahya-Hacıoğlu, B. & Erik, S. 2011. Phylogeny of Symphytum L. (Boraginaceae) with special emphasis on Turkish species. African Journal of Biotechnology 10(69): 15483–15493. DOI: 10.5897/AJB11.1094 Reference page. 
• Güner, A., Aslan, S., Ekim, T., Vural, M. & Babaç, M.T. (eds.) 2012. Türkiye Bitkileri Listesi (Damarlı Bitkiler). Nezahat Gökyiğit Botanik Bahçesi ve Flora Araştırmaları Derneği Yayını. İstanbul. ISBN 978-605-60425-7-7. Online edition. Reference page. 

• Hassler, M. 2020. Symphytum asperum. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2020. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2020 December 27. Reference page. 
• Govaerts, R. et al. 2020. Symphytum asperum in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 December 27. Reference page. 
• International Plant Names Index. 2020. Symphytum asperum. Published online. Accessed: 27 December 2020. Reference page.

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