Echinops ritro subsp. thracicus
Synonymy
Source: Greuter, W. (2006+): Compositae (pro parte majore). – In: Greuter, W. & Raab-Straube, E. von (ed.): Compositae. Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Echinops ritro subsp. thracicus in Bot. J. Linn. Soc. 71: 42. 1975
Content
Bibliography
A. Andreev, N. , Ančev, M. , Kožuharov, S. I. , Markova, M. , Peev, D. & Petrova, A. 1992: Opredelitel na visšite rastenija v Bălgarija. – Sofija: Nauka i izkustvo
B. Hayek, A. von 1928–1931: Prodromus florae peninsulae balcanicae, 2. – Repertorium specierum novarum regni vegetabilis. Beihefte 30(2) (as Echinops thracicus)