Hieracium riofrioi Pau & Font Quer in Font Quer, Iter Marocc. 1928: [in schedis] No. 438. 1929
Hieracium riofrioi in Font Quer, Iter Marocc. 1928: [in schedis] No. 438. 1929
is basionym for Hieracium rupicola subsp. riofrioi in Jahandiez & Maire, Cat. Pl. Maroc: 854. 1934
Hieracium riofrioi in Font Quer, Iter Marocc. 1928: [in schedis] No. 438. 1929