Hieracium alpinum subsp. tubulosum (Tausch) Zahn (original description)
Hieracium arolae (Murr) Zahn (original description)
Hieracium arolae subsp. macrocalathium Zahn (original description)
Hieracium atratum subsp. dolichaetoides Zahn (original description)
Hieracium bocconei subsp. glandulosodentatum (R.Uechtr.) Zahn accepted as Hieracium glandulosodentatum R.Uechtr. (original description)
Hieracium chlorocephalum subsp. engleri (R.Uechtr.) Zahn accepted as Hieracium carpathicum subsp. engleri (R.Uechtr.) Zahn (original description)
Hieracium cochlearifolium subsp. cimarollii Zahn accepted as Hieracium pseudalpinum subsp. cimarollii (Zahn) Greuter (original description)
Hieracium cochlearifolium subsp. pseudalpinum (Nägeli & Peter) Zahn accepted as Hieracium pseudalpinum (Nägeli & Peter) Prain (original description)
Hieracium dentatum subsp. cenisium (Arv.-Touv.) Zahn (original description)
Hieracium dollineri subsp. gadense Zahn (original description)
Hieracium humile subsp. pseudocottetii Zahn (original description)
Hieracium incisum subsp. anthyllidifolium (Murr) Zahn accepted as Hieracium pallescens subsp. anthyllidifolium (Murr) Gottschl. (original description)
Hieracium incisum subsp. gelmianum (Sarnth.) Zahn accepted as Hieracium pallescens subsp. gelmianum (Sarnth.) Gottschl. (original description)
Hieracium incisum subsp. hittense (Murr) Zahn accepted as Hieracium pallescens subsp. hittense (Murr) Greuter (original description)
Hieracium incisum subsp. laceridens Zahn accepted as Hieracium bifidum subsp. laceridens (Zahn) Zahn (original description)
Hieracium incisum subsp. rhoeadifolium (Willk.) Zahn accepted as Hieracium pallescens subsp. rhoeadifolium (A.Kern. ex Willk.) Gottschl. (original description)
Hieracium incisum subsp. senile (Arv.-Touv.) Zahn accepted as Hieracium bifidum subsp. senile (Arv.-Touv.) Zahn (original description)
Hieracium incisum subsp. seniliforme Zahn accepted as Hieracium bifidum subsp. seniliforme (Zahn) Zahn (original description)
Hieracium incisum subsp. trachselianum (Christener) Zahn accepted as Hieracium pallescens subsp. pallescens Waldst. & Kit. (original description)
Hieracium inuloides subsp. pseudostriatum Zahn (original description)
Hieracium inuloides subsp. tridentatifolium (Zahn) Zahn (original description)
Hieracium laevigatum subsp. grandidens Zahn (original description)
Hieracium macrodon subsp. macrodontoides Zahn accepted as Hieracium macrodontoides (Zahn) Zahn (original description)
Hieracium muretii subsp. ganderi Zahn accepted as Hieracium oxyodon subsp. ganderi (Zahn) Zahn (original description)
Hieracium muretii subsp. ganderi Zahn accepted as Hieracium oxyodon subsp. ganderi (Zahn) Zahn (original description)
Hieracium muretii subsp. subcanescens (Murr) Zahn accepted as Hieracium oxyodon subsp. subcanescens (Murr) Zahn (original description)
Hieracium muretii subsp. subcanescens (Murr) Zahn accepted as Hieracium oxyodon subsp. subcanescens (Murr) Zahn (original description)
Hieracium nigrescens subsp. cochleare (Huter) Zahn (original description)
Hieracium nigrescens subsp. decipiens (Tausch) Zahn (original description)
Hieracium nigrescens subsp. nigrescentiforme Zahn (original description)
Hieracium nigrescens subsp. pseudorhaeticum Zahn (original description)
Hieracium nigrescens subsp. rhaeticum (Fr.) Zahn (original description)
Hieracium nigritum subsp. pseudeximium (Gus.Schneid.) Zahn (original description)
Hieracium ochroleucum subsp. lutescens Zahn accepted as Hieracium picroides subsp. lutescens (Zahn) Greuter (original description)
Hieracium pallidiflorum subsp. lantoscanum (Burnat & Gremli) Zahn accepted as Schlagintweitia huteri subsp. lantoscana (Burnat & Gremli) Gottschl. & Greuter (original description)
Hieracium prenanthoides subsp. lanceolatum (Vill.) Zahn (original description)
Hieracium prenanthoides subsp. melanotrichum (Reuter) Zahn (original description)
Hieracium pulchellum subsp. lanatellum (Arv.-Touv.) Zahn accepted as Hieracium pulchellum subsp. pulchellum Gren. (original description)
Hieracium pulchellum subsp. pleioscapum Zahn (original description)
Hieracium schmidtii subsp. diversifolium (Čelak.) Zahn (original description)
Hieracium schmidtii subsp. rupicola Zahn (original description)
Hieracium schmidtii subsp. subrupicola Zahn (original description)
Hieracium umbrosum subsp. arenarium (Sch.Bip.) Zahn accepted as Hieracium maculatum subsp. arenarium (Sch.Bip.) Zahn (original description)
Hieracium umbrosum subsp. commixtum (Jord.) Zahn accepted as Hieracium maculatum subsp. commixtum (Jord.) Zahn (original description)
Hieracium umbrosum subsp. medianum (Griseb.) Zahn accepted as Hieracium murorum subsp. medianum (Griseb.) Zahn (original description)
Hieracium valdepilosum subsp. calvulum (Nägeli & Peter) Zahn (original description)
Hieracium valdepilosum subsp. elongatum Zahn (original description)
Hieracium valdepilosum subsp. glabrescens (Nägeli & Peter) Zahn (original description)
Hieracium valdepilosum subsp. oligophyllum (Nägeli & Peter) Zahn (original description)
Hieracium valdepilosum subsp. pseudelongatum (Nägeli & Peter) Zahn (original description)
Hieracium valdepilosum subsp. raphiolepium (Nägeli & Peter) Zahn (original description)
Hieracium valdepilosum subsp. subsinuatum (Nägeli & Peter) Zahn (original description)
Hieracium valdepilosum subsp. subvaldepilosum Zahn accepted as Hieracium valdepilosum subsp. subalpinum (Nägeli & Peter) Greuter (original description)
Hieracium vulgatum subsp. anfractum (Fr.) Zahn accepted as Hieracium lachenalii subsp. anfractum (Fr.) Zahn (original description)