Hieracium atratum subsp. dolichosphaericum Zahn accepted as Hieracium dolichosphaericum (Zahn) Greuter (original description)
Hieracium atratum subsp. zinkenense (Pernh.) Zahn (original description)
Hieracium dolopicum subsp. pannosifolium Zahn accepted as Hieracium bosniacum subsp. pannosifolium (Zahn) Greuter (original description)
Hieracium juranum subsp. apiculatifrons Zahn (original description)
Hieracium juranum subsp. apiculatifrons Zahn (original description)
Hieracium juranum subsp. papyraceum Zahn (original description)
Hieracium juranum subsp. papyraceum Zahn (original description)
Hieracium juranum subsp. perfoliatiforme Zahn (original description)
Hieracium juranum subsp. perfoliatiforme Zahn (original description)
Hieracium juranum subsp. tephrophorum Zahn (original description)
Hieracium juranum subsp. tephrophorum Zahn (original description)
Hieracium lividorubens (Almq.) Zahn accepted as Hieracium lividorubens (Almq.) Elfstr. (original description)
Hieracium plicatum subsp. amitsokense (Almq.) Zahn accepted as Hieracium lachenalii subsp. cruentifolium (Dahlst. & Lübeck) Zahn (original description)
Hieracium plicatum subsp. groenlandicum (Arv.-Touv.) Zahn (original description)
Hieracium plicatum var. ivigtutense (Almq.) Zahn (original description)
Hieracium tephrosoma subsp. amaurocranum Zahn (original description)
Hieracium tephrosoma subsp. trivialiforme Zahn (original description)