Hieracium cordatum subsp. urrobensis de Retz (original description)
Hieracium fourcadei de Retz (original description)
Hieracium inuliflorum subsp. inulifloroides de Retz (original description)
Hieracium inuliflorum subsp. pseudosubsericeum de Retz (original description)
Hieracium inuliflorum subsp. subinuliflorum de Retz (original description)
Hieracium phlomoides subsp. pseudandurense de Retz accepted as Hieracium laniferum subsp. pseudandurense (de Retz) Greuter (original description)
Hieracium pseudovahlii de Retz accepted as Pilosella pseudovahlii (de Retz) Mateo (original description)
Hieracium queraltensis de Retz (original description)
Hieracium recoderi de Retz (original description)
Hieracium vivantii (de Retz) de Retz (original description)