Hieracium laevigatum subsp. stricticaule
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.
Hieracium laevigatum subsp. stricticaule in Ascherson & Graebner, Syn. Mitteleur. Fl. 12(3): 466. 1937