Hieracium bupleuroides subsp. calycinum (Arv.-Touv.) Zahn accepted as Hieracium bupleuroides subsp. scabriceps Nägeli & Peter (original description)
Hieracium caesioides subsp. lobophyton Zahn (original description)
Hieracium chondrilloides subsp. casterinense (Zahn) Zahn accepted as Hieracium chondrillifolium subsp. casterinense (Zahn) Zahn (original description)
Hieracium cymosum subsp. xanthophylloides Zahn accepted as Pilosella cymosa subsp. cymosa (L.) F.W.Schultz & Sch.Bip. (original description)
Hieracium dentatum subsp. erigerontinum (Arv.-Touv.) Zahn (original description)
Hieracium florentinum subsp. guardianum Zahn accepted as Pilosella piloselloides subsp. piloselloides (Vill.) Soják (original description)
Hieracium florentinum subsp. micromeres Zahn accepted as Pilosella piloselloides subsp. praealta (Gochnat) S.Bräut. & Greuter (original description)
Hieracium florentinum subsp. mondoviense Zahn accepted as Pilosella piloselloides subsp. piloselloides (Vill.) Soják (original description)
Hieracium florentinum subsp. subcanipedunculatum Zahn accepted as Pilosella piloselloides subsp. praealta (Gochnat) S.Bräut. & Greuter (original description)
Hieracium froelichianum subsp. pollinianum Zahn accepted as Hieracium froelichianum subsp. laricicola (C.Bicknell & Zahn) Gottschl. & Greuter (original description)
Hieracium glaciale subsp. albibracteolatum Zahn accepted as Pilosella glacialis F.W.Schultz & Sch.Bip. (original description)
Hieracium glaucum subsp. limonense (Burnat & Gremli) Zahn (original description)
Hieracium glaucum subsp. subglaucum (Burnat & Gremli) Zahn (original description)
Hieracium inuloides subsp. setosifrons Zahn (original description)
Hieracium inuloides subsp. subvirentiforme Zahn (original description)
Hieracium inuloides subsp. vetteri Zahn (original description)
Hieracium laevigatum subsp. magistri (Godr.) Zahn (original description)
Hieracium lanatum subsp. andryaloides (Vill.) Zahn accepted as Hieracium tomentosum subsp. andryaloides (Vill.) Nägeli & Peter (original description)
Hieracium lanatum subsp. phlomidifolium (Arv.-Touv.) Zahn accepted as Hieracium tomentosum subsp. phlomidifolium (Arv.-Touv.) Nägeli & Peter (original description)
Hieracium lanatum subsp. psilopogon (Arv.-Touv. & St.-Yves) Zahn accepted as Hieracium tomentosum subsp. psilopogon (Arv.-Touv. & St.-Yves) Greuter (original description)
Hieracium lanatum subsp. ragusinoides (Arv.-Touv. & St.-Yves) Zahn accepted as Hieracium tomentosum subsp. ragusinoides (Arv.-Touv. & St.-Yves) Greuter (original description)
Hieracium leiopogon subsp. hyposericum Zahn (original description)
Hieracium pachylodes subsp. aphanes Zahn accepted as Pilosella longisquama (Peter) Holub (original description)
Hieracium pachylodes subsp. periphanoidiforme Zahn accepted as Pilosella longisquama (Peter) Holub (original description)
Hieracium prenanthoides subsp. cinerelliceps Zahn accepted as Hieracium prenanthoides subsp. cinereiceps (Zahn) Zahn (original description)
Hieracium prenanthoides subsp. cynanchoides (Arv.-Touv. & Gaut.) Zahn (original description)
Hieracium prenanthoides subsp. subelatifolium Zahn (original description)
Hieracium prenanthoides subsp. trichocynanchoides Zahn (original description)
Hieracium prenanthoides subsp. valdegriseum Zahn (original description)
Hieracium prenanthoides var. orthophylloides Zahn accepted as Hieracium prenanthoides subsp. lanceolatum (Vill.) Zahn (original description)
Hieracium psammogenes subsp. oreitiforme Zahn accepted as Hieracium bifidum subsp. oreitiforme (Zahn) Zahn (original description)
Hieracium pseudocerinthe subsp. legraeanum (Arv.-Touv.) Zahn accepted as Hieracium rupicola subsp. legraeanum (Arv.-Touv.) Greuter (original description)
Hieracium pulchrum subsp. megalocladum (Nägeli & Peter) Zahn accepted as Hieracium chondrillifolium subsp. megalocladum (Nägeli & Peter) Zahn (original description)
Hieracium ramosissimum subsp. adenoclinium (Arv.-Touv.) Zahn (original description)
Hieracium ramosissimum subsp. scariolaceum (Arv.-Touv.) Zahn (original description)
Hieracium sabaudum subsp. grandidentatum (Boreau) Zahn (original description)
Hieracium sulphureum subsp. violascentipes Zahn accepted as Pilosella sulphurea (Döll) F.W.Schultz & Sch.Bip. (original description)
Hieracium umbrosum subsp. crepidifolium (Arv.-Touv.) Zahn (original description)
Hieracium umbrosum subsp. garbellanum Zahn (original description)
Hieracium umbrosum subsp. mindinoicum Zahn (original description)
Hieracium umbrosum subsp. subexilentiforme Zahn (original description)
Hieracium umbrosum subsp. subexilentum (Zahn) Zahn (original description)
Hieracium valdepilosum subsp. subglabrescens Zahn accepted as Hieracium valdepilosum subsp. glabrescens (Nägeli & Peter) Zahn (original description)
Hieracium verbascifolium subsp. linguiforme (Nägeli & Peter) Zahn (original description)
Hieracium verbascifolium subsp. mallobrachion Zahn (original description)
Hieracium verbascifolium subsp. mallophorum (Nägeli & Peter) Zahn (original description)
Hieracium verbascifolium subsp. melandryifolium (Arv.-Touv.) Zahn (original description)
Hieracium verbascifolium subsp. thapsoides (Arv.-Touv.) Zahn (original description)
Hieracium vulgatum subsp. aspernatum (Boreau) Zahn accepted as Hieracium lachenalii subsp. aspernatum (Boreau) Zahn (original description)
Hieracium vulgatum subsp. interaquense Zahn accepted as Hieracium lachenalii subsp. interaquense (Zahn) Zahn (original description)
Hieracium vulgatum subsp. tortifolium (Boreau) Zahn accepted as Hieracium lachenalii subsp. tortifolium (Boreau) Zahn (original description)