Hieracium praealtum subsp. obscurum (Rchb.) Čelak., Prodr. Fl. Böhmen: 197. 1871
Hieracium praealtum subsp. obscurum, Prodr. Fl. Böhmen: 197. 1871
is new combination for Hieracium obscurum, Iconogr. Bot. Pl. Crit. 1: 92. 1823
Hieracium praealtum subsp. obscurum, Prodr. Fl. Böhmen: 197. 1871
Taxon for this name