Hieracium aphyllum subsp. singulare
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 aphyllum subsp. singulare in Reichenbach, Icon. Fl. Germ. Helv. 19(2): 69. 1906