References
- Michev, N.; Mihailov, C.; Vaptsarov, I.; Kiradzhiev, S., Geographical Dictionary of Bulgaria, Nauka i izkustvo, Sofia, 1980 (in Bulgarian).
- Ivanov, P.; Sabeva, M.; Stanev, Sv.; Hristov, P., Climatic guide for the Republic of Bulgaria, Vol. 4, Nauka i izkustvo, Sofia, 1982 (in Bulgarian).
- Koleva, Ek.; Ivanova, R., Climate Guide - Precipitation in Bulgaria, Publishing House of BAS, Sofia, 1990 (in Bulgarian).
- Jordanov, D. (chief ed.), Flora of the Republic of Bulgaria. Volume 1, Publishing House of BAS, Sofia, 1963 (in Bulgarian).
- Bondev, I., The vegetation of Bulgaria. Map 1:600 000 with explanatory text. Publishing House of University of Sofia “Sv. Kliment Ohridski”, Sofia, 1991 (in Bulgarian).
- Medicinal Plants Act of the Republic of Bulgaria, State Gazette No. 29, 7 April 2000, 9-29. Last amended in State Gazette No. 102, 8 December 2023 (in Bulgarian).
- Zahariev, D., The medicinal plants in Bulgaria – list of species, usable parts, fields of application, toxicity and contraindications, Acta Scientifica Naturalis, 2022, 9(1), 33-46.
- Delipavlov, D.; Cheshmedzhiev, I.; Popova, M.; Teriyski, D.; Kovachev, I., Handbook for Plants in Bulgaria. Publishing House of Agricultural University, Plovdiv, 2011 (in Bulgarian).
- Jordanov, D. (chief ed.), Flora of the People’s Republic of Bulgaria. Volume 2, Publishing House of BAS, Sofia, 1964 (in Bulgarian).
- Jordanov, D. (chief ed.), Flora of the People’s Republic of Bulgaria. Volume 3, Publishing House of BAS, Sofia, 1966 (in Bulgarian).
- Jordanov, D. (chief ed.), Flora of the People’s Republic of Bulgaria. Volume 4, Publishing House of BAS, Sofia, 1970 (in Bulgarian).
- Jordanov, D. (chief ed.), Flora of the People’s Republic of Bulgaria. Volume 5, Publishing House of BAS, Sofia, 1973 (in Bulgarian).
- Jordanov, D. (chief ed.), Flora of the People’s Republic of Bulgaria. Volume 6, Publishing House of BAS, Sofia, 1976 (in Bulgarian).
- Jordanov, D. (chief ed.), Flora of the People’s Republic of Bulgaria. Volume 7, Publishing House of BAS, Sofia, 1979 (in Bulgarian).
- Velchev, V. (rep. ed.), Flora of the People’s Republic of Bulgaria. Volume 8, Publishing House of BAS, Sofia, 1982 (in Bulgarian).
- Velchev, V. (rep. ed.), Flora of the People’s Republic of Bulgaria. Volume 9, Publishing House of BAS, Sofia, 1989 (in Bulgarian).
- Kozhuharov, St. (rep. ed.), Flora of the Republic of Bulgaria, Volume 10, Academic Publishing House “Prof. M. Drinov”, Sofia, 1995 (in Bulgarian).
- Peev, D. (rep. ed.), Flora of the Republic of Bulgaria, Volume 11, Academic Publishing House “Prof. M. Drinov”, Sofia, 2013 (in Bulgarian).
- Stoyanov, K.; Raycheva, T.; Cheshmedzhiev, I., Determinant of local and foreign higher plants in Bulgaria, Interactive expanded and supplemented edition, Academic Publishing House of the Agrarian University, Plovdiv, 2022 (in Bulgarian), Website: https://botanica.gallery/plantkeybg/app.html.
- Angiosperm Phylogeny Group, An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV, Botanical Journal of the Linnean Society, 2016, 181, 1-20.
- Raunkiaer, C., The Life forms of plants and statistical plant geography, Clarendon Press, Oxford, 1934.
- Assyov, B.; Petrova, A.; Dimitrov, D.; Vassilev, R., Conspectus of the Bulgarian Vascular Flora. Distribution Maps and Floristic Elements. Bulgarian Biodiversity Foundation, Sofia, 2012.
- Zahariev, D., Biodiversity of relict vascular plants in Bulgaria, International Journal of Research Studies in Biosciences, 2016, 4(1), 38-51.
- Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora, Appendix II, Website: https://eur-lex.europa.eu/eli/dir/1992/43/oj/eng.
- Convention on the Conservation of European Wildlife and Natural Habitats, Appendix I, 1979. Website: http://conventions.coe.int/Treaty/FR/Treaties/Html/104-1.htm.
- Convention on International Trade in Endangered Species of Wild Fauna and Flora, Appendix II, 1973. Website: http://www.cites.org/eng/app/appendices.shtml.
- Petrova, A.; Vladimirov, V. (Eds), Red List of Bulgarian vascular plants, Phytologia Balcanica, 2009, 15(1), 63-94.
- Peev, D. et al. (eds.), Red Book of the Republic of Bulgaria. Volume 1. Plants and fungi, IBER – BAS & MOEW, Sofia, 2015 (in Bulgarian).
- Biological Diversity Act of the Republic of Bulgaria, State Gazette No. 77, 9 August 2002, 9-42. Last amended in State Gazette No. 70, 20 August 2024 (in Bulgarian).
- Order No. RD-99/09.02.2024 on the special regime for the protection and use of medicinal plants in 2024. (in Bulgarian), Website: https://www.moew.government.bg/bg/priroda/zakonodatelstvo/nacionalnozakonodatelstvo/zapovedi/.
- Bernhard-Smith A. Poisonous Plants of All Countries. Delhi, Asiatic Publishing, 2004.
- Hiller, K.; Bickerich, G., Giftpflanzen. Leipzig, Jena, Berlin, Urania-Verlag, 1990.
- Wagstaff, D.J., International poisonous plants checklist: an evidence-based reference. Boca Raton, London, New York, CRC Press, 2008.
- Rycroft, R.J.; Menné, T.; Frosch, P.J.; Lepoitterin, J.-P. (Eds.), Textbook of Contact Dermatitis, Berlin, Heidelberg, New York, Springer-Verlag, 2001.
- Tampion, J., Dangerous Plants. New York, Universe Books, 1977.
- Stefanov, B.; Kitanov, B., Cultigenous plants and cultigenous vegetation in Bulgaria, Publishing House of BAS, Sofia, 1962 (in Bulgarian).
- Petrova, A.; Vladimirov, V.; Georgiev, V., Invasive alien plant species in Bulgaria, Institute of Biodiversity and Ecosystem Research, BAS, Sofia, 2012.
- Zahariev, D., The medicinal plants of Chepan Mountain (Western Bulgaria), Acta Scientifica Naturalis, 2015, 1, 50-67.
- DAISIE List of 100 of the Worst Invasive Alien Species in Europe. Website: http://www.europe-aliens.org/speciesTheWorst.do.