Verbascum tzar-borisii
Synonymy
Source: Marhold, K. (2011+): Verbascum. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Verbascum tzar-borisii, Fl. Republ. Bulgariya 10: 50. 1995
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 (as Verbascum humile subsp. tzar-borisii)
B. Jordanov, D. 1995: Flora Reipublicae Bulgaricae 10. – Editio Academica "Professor Marin Drinov" (as Verbascum humile subsp. tzar-borisii)