Hieracium achaicum Arv.-Touv. (original description)
Hieracium acrocerinthe Arv.-Touv. accepted as Hieracium lawsonii subsp. acrocerinthe (Arv.-Touv.) Zahn (original description)
Hieracium acutidens Arv.-Touv. (original description)
Hieracium albacetum Arv.-Touv. accepted as Hieracium spathulatum subsp. albacetum (Arv.-Touv.) Greuter (original description)
Hieracium aldeanum Arv.-Touv. accepted as Hieracium cavanillesianum subsp. aldeanum (Arv.-Touv.) Greuter (original description)
Hieracium aleuroclinium Arv.-Touv. (original description)
Hieracium almerianum Arv.-Touv. accepted as Hieracium elisaeanum subsp. almerianum (Arv.-Touv.) Zahn. (original description)
Hieracium amphigena Arv.-Touv. (original description)
Hieracium amphigenoides Arv.-Touv. (original description)
Hieracium amphitrichum Arv.-Touv. (original description)
Hieracium anchodontum Arv.-Touv. accepted as Hieracium cordatum subsp. anchodontum (Arv.-Touv.) Zahn (original description)
Hieracium androsaceum Arv.-Touv. accepted as Hieracium loscosianum subsp. loscosianum Scheele (original description)
Hieracium annoticum Arv.-Touv. (original description)
Hieracium antennarium Arv.-Touv. & Faure accepted as Pilosella portae (Willk. ex T.Durand & B.D.Jacks.) Mateo & Greuter (original description)
Hieracium aranicum Arv.-Touv. accepted as Hieracium glaucinum subsp. aranicum (Arv.-Touv.) O.Bolòs & Vigo (original description)
Hieracium arcicola Arv.-Touv. accepted as Hieracium schmidtii subsp. arcicola (Arv.-Touv.) O.Bolòs & Vigo (original description)
Hieracium arcuatiflorum Arv.-Touv. (original description)
Hieracium ardoinoianum Arv.-Touv. & Belli (original description)
Hieracium argentinum Arv.-Touv. accepted as Pilosella argyrocoma (Fr.) F.W.Schultz & Sch.Bip. (original description)
Hieracium arifolium Arv.-Touv. (original description)
Hieracium armeniacum Arv.-Touv. accepted as Hieracium cincinnatum subsp. armeniacum (Arv.-Touv.) Greuter (original description)
Hieracium atrolividum Arv.-Touv. (original description)
Hieracium attracticaule Arv.-Touv. accepted as Hieracium amplexicaule subsp. attracticaule (Arv.-Touv.) Greuter (original description)
Hieracium auriculare Arv.-Touv. & Faure (original description)
Hieracium auritum Arv.-Touv. accepted as Hieracium marmoreum subsp. reticulatum Nägeli & Peter (original description)
Hieracium austrovirens Arv.-Touv. (original description)
Hieracium balearicum Arv.-Touv. accepted as Hieracium elisaeanum subsp. balearicum (Arv.-Touv.) Greuter (original description)
Hieracium barbareifolium Arv.-Touv. (original description)
Hieracium barkhausiforme Arv.-Touv. accepted as Hieracium solidagineum subsp. barkhausiiforme (Arv.-Touv.) Zahn (original description)
Hieracium baseoplecum Arv.-Touv. accepted as Hieracium pseudocerinthe (Gaudin) W.D.J.Koch (original description)
Hieracium berganum Arv.-Touv. (original description)
Hieracium beylii Arv.-Touv. (original description)
Hieracium biscutellifolium (Zahn) Arv.-Touv. accepted as Hieracium armerioides subsp. nigritellum (Arv.-Touv.) Zahn (original description)
Hieracium blanditum Arv.-Touv. (original description)
Hieracium blepharanthum Arv.-Touv. accepted as Hieracium chloropsis subsp. erioleion (Nägeli & Peter) Zahn (original description)
Hieracium blepharosum Arv.-Touv. (original description)
Hieracium boryanum Arv.-Touv. accepted as Hieracium loeflingianum subsp. boryanum (Arv.-Touv.) Zahn (original description)
Hieracium briziflorum Arv.-Touv. (original description)
Hieracium bujedoanum Arv.-Touv. accepted as Hieracium loscosianum subsp. bujedoanum (Arv.-Touv.) Greuter (original description)
Hieracium cabreranum Arv.-Touv. (original description)
Hieracium calyptadenum Arv.-Touv. (original description)
Hieracium candelanum Arv.-Touv. accepted as Hieracium maculatum subsp. candelanum (Arv.-Touv.) Zahn (original description)
Hieracium canibifidum Arv.-Touv. accepted as Hieracium hypochoeroides subsp. canibifidum (Arv.-Touv.) Greuter (original description)
Hieracium canopilosum Arv.-Touv. (original description)
Hieracium cantabricum Arv.-Touv. accepted as Hieracium lamprophyllum subsp. cantabricum (Arv.-Touv.) Greuter (original description)
Hieracium capsellifolium Arv.-Touv. (original description)
Hieracium carestianum Arv.-Touv. (original description)
Hieracium castellanum Arv.-Touv. accepted as Hieracium spathulatum Scheele (original description)
Hieracium casterinum Arv.-Touv. (original description)
Hieracium catocerinthe Arv.-Touv. (original description)
Hieracium caudaticorde Arv.-Touv. (original description)
Hieracium caudatum Arv.-Touv. (original description)
Hieracium caussile Arv.-Touv. (original description)
Hieracium chabalicum Arv.-Touv. (original description)
Hieracium chabertianum Arv.-Touv. accepted as Hieracium leiopogon subsp. chabertianum (Arv.-Touv.) Zahn (original description)
Hieracium chenopodioides Arv.-Touv. accepted as Hieracium lachenalii subsp. chenopodioides (Arv.-Touv.) Greuter (original description)
Hieracium chlorospermum Arv.-Touv. & Belli (original description)
Hieracium cincinnellum Arv.-Touv. accepted as Hieracium mixtum Lapeyr. ex Froel. (original description)
Hieracium circinnatum Arv.-Touv. (original description)
Hieracium citharocerinthe Arv.-Touv. & Sennen accepted as Hieracium cordatum subsp. citharocerinthe (Arv.-Touv. & Sennen) Zahn (original description)
Hieracium cladiocerinthe Arv.-Touv. (original description)
Hieracium coleoglaucum Arv.-Touv. accepted as Hieracium glaucum subsp. coleoglaucum (Arv.-Touv.) de Retz (original description)
Hieracium conaticum Arv.-Touv. accepted as Hieracium cordatum subsp. anchodontum (Arv.-Touv.) Zahn (original description)
Hieracium corrosifolium Arv.-Touv. (original description)
Hieracium corteyanum Arv.-Touv. (original description)
Hieracium creusense Arv.-Touv. (original description)
Hieracium crinulifolium Arv.-Touv. accepted as Hieracium onosmoides subsp. crinulifolium (Arv.-Touv.) Zahn (original description)
Hieracium criosclerum Arv.-Touv. (original description)
Hieracium curtifolium Arv.-Touv. (original description)
Hieracium cuspidatoides Arv.-Touv. accepted as Hieracium maculatum subsp. cuspidatoides (Arv.-Touv.) Greuter (original description)
Hieracium cuspidifolium Arv.-Touv. accepted as Hieracium glaucophyllum subsp. cuspidifrons Zahn (original description)
Hieracium densicrinum Arv.-Touv. (original description)
Hieracium dichellum Arv.-Touv. (original description)
Hieracium digitalinum Arv.-Touv. accepted as Hieracium prenanthoides subsp. subelatifolium Zahn (original description)
Hieracium discoideum Arv.-Touv. (original description)
Hieracium donosianum Arv.-Touv. accepted as Hieracium compositum subsp. donosianum (Arv.-Touv.) Zahn (original description)
Hieracium dubyanum Arv.-Touv. (original description)
Hieracium ecrinense Arv.-Touv. (original description)
Hieracium ellipsocerinthe Arv.-Touv. accepted as Hieracium mixtiforme subsp. ellipsocerinthe (Arv.-Touv.) Zahn (original description)
Hieracium erucibifidum Arv.-Touv. accepted as Hieracium hypochoeroides subsp. erucibifidum (Arv.-Touv.) Greuter (original description)
Hieracium excisum accepted as Hieracium pallescens subsp. excisum (Arv.-Touv. & A.Faure) Greuter (original description)
Hieracium exostylum Arv.-Touv. (original description)
Hieracium fagineum Arv.-Touv. accepted as Hieracium laevigatum subsp. fagineum (Arv.-Touv.) Zahn (original description)
Hieracium ferulinum Arv.-Touv. (original description)
Hieracium ficifolium Arv.-Touv. accepted as Hieracium laevigatum subsp. ficifolium (Arv.-Touv.) Zahn (original description)
Hieracium flexiflorum Arv.-Touv. accepted as Hieracium solidagineum subsp. flexiflorum (Arv.-Touv.) Zahn (original description)
Hieracium flexile Arv.-Touv. accepted as Hieracium planchonianum Timb.-Lagr. & Loret (original description)
Hieracium fractiflexum Arv.-Touv. (original description)
Hieracium frigidulum Arv.-Touv. (original description)
Hieracium fuscolividum Arv.-Touv. (original description)
Hieracium gariodianum Arv.-Touv. accepted as Hieracium leiopogon subsp. gariodianum (Arv.-Touv.) Zahn (original description)
Hieracium gersicum Arv.-Touv. accepted as Hieracium cordatum subsp. gersicum (Arv.-Touv.) Greuter (original description)
Hieracium glareicola Arv.-Touv. (original description)
Hieracium gmelinianum Arv.-Touv. (original description)
Hieracium guilligenum Arv.-Touv. (original description)
Hieracium hellenicum Arv.-Touv. accepted as Hieracium sericophyllum subsp. hellenicum (Arv.-Touv.) Zahn (original description)
Hieracium heribaudianum Arv.-Touv. accepted as Hieracium maculatum subsp. heribaudianum (Arv.-Touv.) Zahn (original description)
Hieracium hirticollum Arv.-Touv. (original description)
Hieracium horrisetum Arv.-Touv. (original description)
Hieracium kunzeanum Arv.-Touv. accepted as Hieracium nobile subsp. kunzeanum (Arv.-Touv.) Greuter (original description)