Typus | Taxon | Synonym | Zahn- Nr. |
| abrezolianum Zahn | | 652 |
| accline Norlin | | 673 |
| adenophyton (Zahn) Zahn | | 266 |
| adriaticiforme Zahn | | 700 |
| adriaticum Naegeli ex Freyn | (H. visianii (F.W. Schultz & Schultz-Bip.) Rothmaler) | 704 |
| adusticeps Zahn | (H. melanops Arvet-Touvet) | 162 |
| aestivum Fries | (H. conicum Arvet-Touvet); H. crocatum Fries) | 363 |
| aglaotrichum Dahlstedt | (H. auriculinum Almquist ssp. aglaotrichum Dahlstedt) | 672 |
| akscheherense Bornmüller & Zahn | (H. megatrichum Borbás ssp. akscheherense Bornmüller & Zahn) | 753 |
| alandicum Norrlin | (H. macranthelum Naegeli & Peter ssp. alandicum Norrlin) | 668 |
| alatum Lapeyrouse | | 101 |
| albiflorum Hooker | | 531 |
| aletschense Zahn | | 602 |
| alpicola Schleicher ex Steudel & Hochstetter | | 608 |
T | alpinum L. ssp. vitellicolor (Elfstr.) | | 261 |
| alpinum Linnaeus | | 261 |
| amaurocephalum Naegeli & Peter | | 625 |
| ambiguum Ehrhart | (H. glomeratum Froelich) | 667 |
T | ambiguum Ehrhart ssp. megalotrichum Dahlstedt | | 667 |
| amblylepis Boissier | (H. sparsum Frivaldszky ssp. amblylepis Boissier) | 412 |
| amplexicaule Linnaeus | | 288 |
| anchusoides (Arvet-Touvet) Saint-Lag. | (P. anchusoides Arvet-Touvet) | 733 |
| andrasovszkyi Zahn | | 412b |
| angustatum Lindeberg | | 150 |
T | angustatum Lindeberg ssp. subnaevosum (K. Johansson ex Dahlstedt) | | 150 |
| angustifolium Hoppe | (H. glaciale Reynier ex Lachenal) | 587 |
| annae-toutoniae Zahn | | 14 |
| apatelium Naegeli & Peter | (H. x piloselliflorum Naegeli & Peter) | 641 |
| aphyllum Naegeli & Peter | | 72 |
| aragonense Scheele | | 112 |
| argillaceoides (Litwinow & Zahn) Juxip | (H. lachenalii C.C. Gmelin ssp. argillaceoides Litwinow & Zahn) | 142 |
| argothrix Naegeli & Peter | | 202 |
| aridum Freyn | (H. venetianum Naegeli & Peter; P. arida (Freyn) Soják; H x florentoides Arvet-Touvet) | 705 |
| armenoturcicum Zahn | (H. pannoniciforme Litwinow & Zahn ssp. armenoturcicum Zahn) | 756 |
| armerioides Arvet-Touvet | | 73 |
| arnoserioides Naegeli & Peter | (H. raiblense Huter) | 697 |
| arolae (Murr) Zahn | | 279 |
| arrectum Grenier | | 20 |
| artabirense (Zahn) Juxip | (H. erythrocarpum Peter ssp. artabirense Zahn) | 415 |
| arvicola Naegeli & Peter | (P. arvicola (Naegeli & Peter) Soják) | 721 |
| asikkalense Norrlin | (H. zizianum Tausch ssp. asikkalense Norrlin) | 732 |
| assimilatum Norrlin | (H. arvicola Naegeli & Peter ssp. assimilatum Norrlin) | 721 |
| asterodermum (Woronow & Zahn) Juxip | (H. crocatum Fries ssp. asterodermum Woronow & Zahn | 363 |
| atramentarium (Naegeli & Peter) Zahn | (H. derubellum Gottschlich & Schuhwerk) | 716 |
| atratiforme Simonkai | | 419 |
| atratum Fries | | 264 |
| aurantellum Naegeli & Peter | | 623 |
| aurantiacum Linnaeus | (P. aurantiaca (Linnaeus) F.W. Schultz & Schultz-Bip.) | 611 |
| auricula Lamarck & DC. (non Linnaeus) | (H. lactucella Wallroth) | 586 |
| auriculiforme Fries | | 590 |
| auriculinum Almquist ex Dahlstedt | | 672 |
| auriculoides A. Láng | (H. pannonicum Naegeli & Peter; P. auriculoides (A.F. Láng) P.D.Sell & C.West) | 750 |
| austriacum Brittinger | | 8 |
| austroslavicum Maly & Zahn | | 328a |
| aymericianum Arvet-Touvet | | 120 |
| baenitzianum Arvet-Touvet | | 289 |
| baeticum Arvet-Touvet & Reverchon | | 113 |
| basifurcum Naegeli & Peter | | 595 |
| bauhini Schultes ex Besser | (H. magyaricum Naegeli & Peter; P. bauhini (Schultes) Arvet-Touvet) | 696 |
T | bauhini Schultes ex Besser ssp. improtectum K. Johansson | (H. improtectum K. Johansson) | 696 |
| beckianum Gremli | | 315 |
| benzianum Murr & Zahn | | 159 |
| bernardii Rouy | | 400a |
| beyeri Zahn | | 192a |
| bicolor Scheele | | 115 |
| bifidum Kitaibel ex Hornemann | | 146 |
T | bifidum Kitaibel ex Hornemann ssp. albaquense Korb & Zahn | | 146 |
T | bifidum Kitaibel ex Hornemann ssp. cardiobasiforme Zahn | | 146 |
T | bifidum Kitaibel ex Hornemann ssp. cardiobasiforme Zahn var. minoriceps Zahn | | 146 |
T | bifidum Kitaibel ex Hornemann ssp. laricetophilum Zahn | | 146 |
T | bifidum Kitaibel ex Hornemann ssp. melanochloreilema Pampanini & Zahn var. eggense Zahn | | 146 |
T | bifidum Kitaibel ex Hornemann ssp. paurodon Harz & Zahn var. klausenense Zahn | | 146 |
T | bifidum Kitaibel ex Hornemann ssp. peracutisquamum Zahn | | 146 |
T | bifidum Kitaibel ex Hornemann ssp. sinuosifrons (Almquist.) Zahn var. nipholepioides Z. svar. ovindoliense Furrer & Zahn | | 146 |
| biflorum Arvet-Touvet | | 665 |
| bifurcum auct. non M. Bieb | (H. brachiatum Bertoloni ex DC., P. brachiata (Bertoloni ex DC.) F.W. Schultz & Schultz-Bip.) | 706 |
| bifurcum Marschall von Bieberstein | | 686 |
| billyanum de Retz | | 581 |
| binatum Norrlin | (H. macranthelum Naegeli & Peter ssp. binatum Norrlin) | 668 |
| bithynicum (Zahn) Sell & West | (H. murorum Linnaeus ssp. bithynicum (Zahn) Sell & West) | 139 |
| blyttianum Fries | (H. pyrrhanthes Naegeli & Peter) (H. aurantiacum x H. auricula) | 620 |
| bocconei Grisebach | | 269 |
| bohatschianum Zahn | | 413 |
| bolanderi A. Gray | | 545 |
| bornmuelleri Freyn | (H. pannosum Boissier ssp. bornmuelleri (Freyn) Z.) | 207 |
| brachiatum Bertoloni ex DC. | (H. bifurcum auct. non Marschall Bieberstein; P. brachiata (Bertoloni ex DC.) F.W. Schultz & Schultz-Bip.) | 706 |
T | brachiatum Bertoloni ex DC. ssp. huberi Zahn | | 706 |
T | brachiatum Bertoloni ex DC. ssp. rastetteri de Retz | | 706 |
T | brachybrachion (Zahn) Sell & West | (H. crocatum Fries ssp. brachybrachion (Zahn) Sell & West) | 363 |
| brachycomum Naegeli & Peter | | 596 |
| brachycybe Norrlin | (H. longiscapum Boissier & Kotschy ssp. brachycybe Norrlin) | 638 |
| bracteolatum Sibthorp & Smith | | 408 |
| brandisianum Zahn | (H. erythrocarpum Peter ssp. brandisianum Zahn) | 415 |
| braunianum Chenevard & Zahn | | 52 |
| brevifolium Tausch | | 366 |
| breviscapum DC. | | 676/1 |
| brzovecense Horv. & Pawl. | (H. candollei Monnier) | 607 |
| bupleuroides C.C.Gmelin | | 2 |
| burnatii Arvet-Touvet | | 16 |
| caesariatum Naegeli & Peter ssp. pratense Tseh | | 750/1 |
| caesiogenum Woloszcak & Zahn in Reichenbach | | 155 |
| caesioides Arvet-Touvet | | 178 |
| caesium (Fries) Fries | | 147 |
T | caesium (Fries) Fries ssp. caesiifolioides (Noto) | | 147 |
T | caesium (Fries) Fries ssp. dichtlianum G. Beck | | 147 |
T | caesium (Fries) Fries ssp. laeticeps Dahlstedt | | 147 |
T | caesium (Fries) Fries ssp. lugubre G. O. Anders | | 147 |
T | caesium (Fries) Fries ssp. poecilodermum Dahlstedt | | 147 |
T | caesium (Fries) Fries ssp. respondens K. Johansson ex Dahlstedt | | 147 |
| caespitosum Dumortier | (H. pratense Tausch; P. x caespitosa (Dumortier) Sell & West) | 629 |
| calcareum Bernhardi ex Hornemann | (H. illyricum Fries) | 21 |
| callimorphoides Zahn | | 647 |
| callimorphum Naegeli & Peter | | 646 |
| calocymum Zahn | | 134 |
| calodon Tausch ex Peter | (P. calodon (Tausch ex Peter) Soják) | 743 |
| calomastix Peter | | 719 |
| caloprasinum (Zahn) Juxip | (H. erythrocarpum Peter ssp. caloprasinum Zahn) | 415 |
| candidum Scheele | | 76 |
| candollei Monnier | (H. breviscapum DC.) | 607 |
| cantalicum Arvet-Touvet | | 317 |
| canum Naegeli & Peter | | 653 |
| carinthiostiriacum Vetter & Zahn | | 425b |
| carpathicum Besser | | 326 |
| cascadorum Zahn | | 541 |
| castellanum Boissier & Reuter | | 585 |
| cavillieri Zahn | | 323 |
| cephalotes Arvet-Touvet | | 187 |
| cerinthoides Linnaeus | | 90 |
T | cerinthoides Linnaeus ssp. vivanti de Retz | | 90 |
| cernuatum Sudre | | 622 |
T | cernuatum Sudre ssp. herjedalicum Dahlstedt | | 622 |
| cernuiforme (Naegeli & Peter) Zahn | (H. macrostolonum G. Schneider) | 635 |
| chaboissaei Arvet-Touvet | | 205 |
| chamaepicris Arvet-Touvet | | 307 |
| chaunanthes Naegeli & Peter | | 615 |
| chlorellum Norrlin | | 144 |
| chloribracteum Degen & Zahn | | 275 |
| chlorifolium Arvet-Touvet | | 56 |
| chlorocephalum Wimmer ex Uechtritz | | 344 |
| chloroprenanthes Litwinow & Zahn | (H. djimilense Boissier ssp. chloroprenanthes Litwinow & Zahn) | 425 |
| chlorops Naegeli & Peter | (H. prussicum Naegeli & Peter ssp. chlorops Naegeli & Peter) | 633 |
| chloropsis Grenier & Godron | | 46 |
| chondrillifolium Fries | | 43 |
T | chondrillifolium Fries ssp. megalocladum Naegeli & Peter var. aquilae Zahn | | 43 |
T | choribracteum Degen & Zahn ssp. juniperetorum Nyarady & Zahn | | 275 |
| chrysocephaloides Norrlin | | 620/1 |
| cilicicum (Naegeli & Peter) Juxip | | 575c |
| cincinnatum Fries | | 374 |
| cinerascens Jordan | (H. glaucinum Jordan ssp. cinerascens (Jordan) | 127 |
| cirritum Arvet-Touvet | | 163 |
| cochlearioides Zahn | | 74 |
T | cochlearioides Zahn ssp. tissierei Z. | | 74 |
| cochleatum Naegeli & Peter | | 639 |
| collicola Norrlin & Lindberg fil. | (H. macranthelum Naegeli & Peter ssp. collicola Norrlin & Lindberg) | 668 |
| collinum Gochnat | (H. caespitosum Dumortier) | 691 |
| colmeiroanum Arvet-Touvet & Gautier | | 87 |
| coloriscapum Rohlena & Zahn | | 246 |
T | coloriscapum Rohlena & Zahn ssp. coloriscapum var. coloriscapum svar. longifurcum Behr & Zahn | | 246 |
T | coloriscapum Rohlena & Zahn ssp. leucosericophyllum Behr & Zahn | | 246 |
T | coloriscapum Rohlena & Zahn ssp. schistophyes Behr & Zahn | | 246 |
| compositum Lapeyrouse | | 396 |
| congruens Norrlin | (H. diaphanoides Lindeberg ssp. subarctoum Norrlin; H. subarctoum Norrlin; H. praecipuiforme Dahlst.) | 141 |
| conicum Arvet-Touvet | (H. aestivum Fries; H. crocatum Fries) | 363 |
T | conicum Arvet-Touvet ssp. aurigeranum (H. Loret & Timb. Lagr.) Zahn | | 363 |
T | conistum Norrlin | (H. cymosum Linnaeus ssp. conistum Norrlin) | 648 |
| contractum Norrlin | (H. cymosum L ssp. contractum Norrlin) | 648 |
| corconticum Knaf fil. ex Čelakovsky | | 343 |
| cordatum Scheele ex Costa | | 293 |
| cordifolium Lapeyrouse | | 79 |
| coronariifolium Arvet-Touvet | | 201 |
| cotteti Godet ex Gremli | | 256 |
| crassiusculum Almquist ex Dahlstedt | (H. macranthelum Naegeli & Peter ssp. crassiculum Almquist) | 668 |
| crinitum Smith in Sibthorp & Smith | (H. racemosum Waldstein & Kitaibel ex Willd. ssp. crinitum (Smith) Zahn) | 395 |
| crocatum Fries | (H. aestivum Fries; H. conicum Arvet-Touvet) | 363 |
| cryptadenum Arvet-Touvet | | 49 |
T | cubillanum de Retz | | 49 |
| cydoniifolium Villars | | 326 |
| cymosum Linnaeus | (H. nestleri Villars, P. cymosa (L.) F.W. Schultz & Schultz-Bip.) | 648 |
T | cymosum L. ssp. conistum Norrlin | (H. conistum Norrlin) | 648 |
T | cymosum L. ssp. crebriglandulum Dahlstedt | | 648 |
| cynoglossoides Arvet-Touvet | | 543 |
| cyrtophyllum Norrlin | (H. zizianum Tausch ssp. cyrtophyllum Norrlin) | 732 |
| dasytrichum Arvet-Touvet | | 71 |
| delicatulum Loennroth | (H. auriculinum Almquist ssp. delicatulum Loennroth) | 672 |
| demissum (Strömfeldt) Dahlstedt | | 358 |
| densiflorum Tausch | (H. tauschii Zahn; H. umbelliferum Naegeli & Peter; H. cf. tauschii Zahn ssp. pseudotauschii Zahn) | 740 |
T | densiflorum Tausch ssp. vinetorum Z. | (P. densiflora (Tausch) Soják) | 740 |
| dentatum Hoppe | | 41 |
| denticuliferum Norrlin | (H. cymosum Linnaeus ssp. denticuliferum Norrlin) | 648 |
| dentosum Norrlin | (H. ambiguum Ehrhard ssp. dentosum Norrlin) | 667 |
| depilatum Almquist ex Lindeberg | | 349 |
| derubellum Gottschlich & Schuhwerk | | 716/1 |
| diaphanoides Lindeberg | | 141 |
T | diaphanoides Lindeberg ssp. altvengrenii Dahlstedt | | 141 |
T | diaphanoides Lindeberg ssp. engeli de Retz | | 141 |
T | diaphanoides Lindeberg ssp. megalodon Dahlstedt | | 141 |
T | diaphanoides Lindeberg ssp. pseudostorliense K. Johansson ex Dahlstedt | | 141 |
| diaphanoidiceps (Woronow & Zahn) | (H. tschamkorijense Zahn ssp. diaphanoidiceps Juxip Woronow & Zahn) | 416 |
| dichotomum Fries | | 722 |
| digenum Burnat & Gremli | | 303 |
T | djimilense Boissier & Balansa | | 425 |
T | djimilense Boissier & Balansa ssp. gurglense Gottschlich & Brandstätter | | 425 |
T | dollineri Schultz-Bip. ex Neilr. ssp. subcrinitellum Murr & Zahn | | 12 |
| dollineri Schultz-Bip. ex Neilreich | | 12 |
| dolopicum Freyn & Sintenis | | 212 |
| dragicola (Naegeli & Peter) Zahn | | 33 |
| dubium (Linnaeus) Lindberg | | 673 |
T | dunkelii Gottschlich | | 431b |
| echioides Lumnitzer | (Pilosella echioides (Lumnitzer) F.W. Schultz & Schultz-Bip.) | 676 |
| elisaeanum Arvet-Touvet | | 80 |
| epimedium Fries | (H. macilentum Fries) | 325 |
| erectum (Naegeli & Peter) Zahn | (H. rubriflorum Zahn) | 612 |
| eriobasis Freyn & Sintenis | | 218 |
| erioleucum Zahn | | 191 |
| eriophorum St. Amans | | 375 |
| erythrocarpum Peter | | 415 |
| euchaetiiforme Zahn | (H. visianii (F.W. Schultz & Schultz-Bip.) Schinz & Thellung) | 748 |
| euchaetium Naegeli & Peter | | 752 |
| eurylepium Peter | (H. pachypilon Peter) | 594 |
| exotericum Jordan | (H. murorum L. ssp. exotericum (Jordan) Zahn) | 139 |
| falcatum Arvet-Touvet | | 19 |
| fallacinum F.W. Schultz | (H. prantlii Naegeli & Peter; H. germanicum Naegeli & Peter; P. fallacina (F.W. Schultz) Schultz-Bip.) | 736 |
| fallax Willdenow | | 691 |
| faurei Arvet-Touvet | | 605 |
| favratii Muret ex Gremli | | 380 |
| firmicaule Norrlin | (H. cymosum Linnaeus ssp firmicaule Norrlin) | 648 |
| flagellare Willdenow | | 632 |
| flagelliferum Ravaud | | 378 |
| flexicaule Freyn & Vandas | | 215 |
| flocculiferum Zahn | | 82 |
| florentinum Allioni | (H. piloselloides Villars) | 695 |
| floribundum Wimmer & Grabowski | (Pilosella floribunda (Wimmer & Grabowski) Arvet-Touvet) | 636 |
| foliosissimum (Woronow & Zahn) | (H. sparsum Frivaldszky ssp. foliosissimum Woronow & Zahn) | 412 |
| fontanesianum Arvet-Touvet & Gautier | | 107 |
| franconicum (Grisebach) Zahn | (H. rupicola Fries var. franconicum Grisebach) | 7 |
| fredesianum G. Mateo | | 127a |
| frigidarium Naegeli & Peter | | 715 |
| fritschianum Hayek & Zahn | | 412a |
| fritzei F.W. Schulz | | 282 |
| fuernrohri Vollmann | | 654 |
| fulcratum Arvet-Touvet | | 18 |
| fulgens Naegeli & Peter | (H. nothum Huter) | 624 |
| fulvisetum Bertoloni | | 707a |
| fuscescens (Naegeli & Peter) Zahn | | 663 |
| fuscocinereum Norrlin | (H. sagittatum (Lindeberg) Norrlin) | 140 |
| fuscum Villars | | 617 |
| gastonianum Arvet-Touvet | | 106 |
T | gastonianum Arvet-Touvet ssp. cantabrimontanum de Retz | | 106 |
| gaudryi Boissier | | 210 |
| gentile Jordan ex Boreau | (H. murorum Linnaeus ssp gentile (Jordan ex Boreau) Zahn) | 139 |
| gentiliforme (Zahn) P.D. Sell & C. West | (H. sylvaticum (L.) Grufberg ssp. gentiliforme Zahn) | 139 |
| germanicum Naegeli & Peter | (H. fallacinum F.W. Schultz; Pilosella fallacina (F. W. Schultz) Schultz-Bip.) | 736 |
| giresunense Huber-Morath | (H. schmidtii Tausch ssp. giresunense Huber-Morath) | 126 |
| glabratum Hoppe | | 38 |
| glaciale (Reynier) Lachenal | (H. angustifolium Hoppe) | 587 |
| glaciellum Naegeli & Peter | | 603 |
| glandulosum Almquist | (H. ambiguum Ehrhart ssp. glandulosum Almquist) | 667 |
| glaucinum Jordan | (H. praecox Schultz-Bip.) | 127 |
T | glaucinum Jordan ssp. bounophilum (Jordan ex Boreau) var. nansicum (de Retz) | | 127 |
T | glaucinum Jordan ssp. cretense (Briquet & Zahn) | | 127 |
T | glaucinum Jordan ssp. microcladophorum (Briquet & Zahn) | | 127 |
| glaucophyllum Scheele | | 297 |
| glaucopsis Grenier & Godron | | 63 |
| glaucum Allioni | | 3 |
T | glaucum Allioni ssp. glaucum var. subglandulosum de Retz | | 3 |
| glomeratulum Almquist | (H. ambiguum Ehrhart ssp. glomeratulum Almquist) | 667 |
| glomeratum Froelich | (H. ambiguum Ehrhart) | 667 |
| gombense Lagger ex Christener | | 345 |
| gorfenianum Bornmüller & Zahn | | 271/1 |
| gracile Hooker | | 554 |
| granatense Arvet-Touvet & Gautier | | 96 |
| groetzingense Zahn | | 741/1 |
| gronovii Linnaeus | | 523 |
T | guentheri-beckii Z. ssp. portentosum Hayek & Zahn var. gymnocephalopsis Behr & Zahn | | 213 |
T | guentheri-beckii Z. ssp. portentosum Hayek & Zahn var. villosisimiles Behr & Zahn | | 213 |
| guentheri-beckii Zahn | | 213 |
| guthnickianum Hegetschweiler | (H. rubellum (Koch) Zahn) | 661 |
| gymnocephalum Grisebach | | 208 |
| haegerstroemii Dahlstedt | (H. murorum L. ssp. haegerstroemii Dahlstedt) | 139 |
| haematopodum Zahn | | 322 |
| halacsyi Heldreich ex Halácsyi | | 649 |
| harzianum Zahn | | 26 |
T | harzianum Zahn | | 26 |
| hermannii-zahnii Zahn | | 356 |
| heterogynum (Froelich) Gutermann | | 382 |
| hirsutum Bernhardi | | 407 |
T | hirsutum Bernhardi ssp. chevallieri (Timbal & Marçais) Zahn | | 407 |
| hoppeanum Schultes | (P. x hoppeana (Schultes) F.W. Schultz & Schultz-Bip.) | 575 |
| horridum Fries | | 553 |
| huber-morathii P.D. Sell & C. West | (H. schmidtii Tausch ssp. huber-morathii (P.D. Sell & C. West) | 126 |
| humile Jacquin | (H. jacquini Villars) | 252 |
| hybridiforme Zahn | (H. leucense F.O. Wolf) | 701 |
| hybridum Chaix | | 650 |
T | hybridum Chaix ssp. lautareticum (Rouy) Zahn | | 650 |
| hyperboreum Fries | | 717 |
| hypeuryum Peter | | 581 |
| hypopitiforme Juxip | (H. vulgatum ssp. hypopitys sensu Zahn) | 145 |
| igneum Freyn. | (Pilosella x ruprechtii (Boissier) P.D. Sell & C. West) | 699 |
| illudens Norrlin | (H. ambiguum Ehrhart ssp. illudens Norrlin) | 667 |
| illyricum Fries | (H. calcareum Bernh. ex Hornem.) | 21 |
T | illyricum Fries ssp. venostorum Zahn | (H. venostorum (Zahn) Gottschlich) | 21 |
T | improtectum K. Johansson | (H. bauhini Schultes ex Besser ssp. improtectum K. Johansson) | 696 |
| incaniforme Litwonow & Zahn | | 755 |
T | incaniforme Litwonow & Zahn ssp. incaniforme | | 755 |
| incisum Hoppe | (H. pallescens Waldstein & Kitaibel) | 157 |
| incrassatum Norrlin | (H. zizianum Tausch ssp. incrassatum Norrlin) | 732 |
| insolens Norrlin | | 696/2 |
| insuetum Jordan ex Boreau | | 403 |
| intybaceum Allioni | | 308 |
| inuliflorum Arvet-Touvet & Gautier | | 88 |
| inuloides Tausch | | 361 |
| isatidifolium Arvet-Touvet | | 314 |
| iseranum (Uechtritz) Zahn | | 640 |
| islandicum (Lange) Dahlstedt | (H. floribundum Wimmer & Grabowski ssp. islandicum (Lange) Dahlstedt) | 636 |
| issleri Touton & Zahn | (H. olivaceum Grenier & Godron ssp. issleri Touton & Zahn) | 104 |
| isslerianum Zahn ssp. costae Zahn | (H. prenanthoides Vill. ssp. isslerianum Zahn nom var. costae Zahn nom inval.) | 313 |
| jacquini Villars | (H. humile Jacquin) | 252 |
| jankae Uechtritz | | 247 |
| johannes-jansenii van Soest | | 629 |
| jordanii Arvet-Touvet | | 193 |
T | jubaticeps Behr & Zahn | | 412c |
| juncicaule Norrlin | (H. ambiguum Ehrhart ssp. umbelliflorum (Naegeli & Peter) Zahn) | 667 |
| juraniforme Zahn | | 324 |
| jurassicum Grisebach | | 319 |
| juratzkae Zahn | | 24 |
| kaeseranum Zahn | | 17 |
| kalksburgense Wiesb. | (H. laschii (F.W. Schultz & Schultz-Bip.) Zahn) | 653 |
| kalsianum Huter | | 67 |
| karagoellense (Zahn) P.D. Sell & C. West | (H. erythrocarpum Peter ssp. karagoellense Zahn) | 415 |
| kerneri Aussendorfer ex Zahn | | 257 |
| khekianum Zahn | | 309 |
| kochianum Jordan | | 198 |
T | kopsikum Gottschlich | | 489 |
| krameri Franchot & Savatier | | 452 |
| krasanii Woloszcak | | 274 |
| kueckenthalianum (Zahn) Zahn | (H. tephrosoma (Naegeli & Peter) Zahn) | 271 |
T | kueckenthalianum (Zahn) Zahn ssp. valsicum (Kaeser & Zahn) | | 271 |
| labillardierei Arvet-Touvet | (H. pallidum Bivona-Bernardi ssp. odontotrichodes Zahn) | 126 |
| lachenalii C. C. Gmelin | (H. vulgatum auct. non Fries) | 142 |
T | lachenalii C. C. Gmelin ssp. cruentifolium Dahlstedt & Lübeck | | 142 |
T | lachenalii C. C. Gmelin ssp. eusticum Dahlstedt | | 142 |
T | lachenalii C. C. Gmelin ssp. interveniens Dahlstedt | | 142 |
T | lachenalii C. C. Gmelin ssp. luebeckii Dahlstedt | | 142 |
T | lachenalii C. C. Gmelin ssp. subnitidum (Dahlstedt) | | 142 |
| lactucella Wallroth | (H. auricula auct. non Linnaeus; P. lactucella (Wallroth) P.D. Sell & C. West) | 586 |
| laevigatum Willdenow | | 360 |
| laggeri (Schultz-Bip. ex Reichb.) Fries | | 657 |
| lainzii de Retz | | 092a |
| lanatum (Linnaeus) Villars | (H. tomentosum (Linnaeus) Linnaeus) | 189 |
| lanceolatum Villars | (H. prenanthoides Villars ssp. lanceolatum (Villars) Zahn) | 313 |
| laniferum Cavanilles | | 75 |
T | lansicum Arvet-Touvet | | 197 |
| laschii (F.W. Schultz & Schultz-Bip.) Zahn | (H. kalksburgense Wiesbaur) | 653 |
T | laschii (F.W. Schultz & Schultz-Bip.) Zahn ssp. sacrimontis Schack & Zahn | | 653 |
| lasiochaetum (Bornmüller & Zahn) P.D. Sell & C. West | (H. schmidtii Tausch ssp. lasiochaetum Bornmüller & Zahn) | 126 |
| lathraeum Peter | (H. nigricarinum Naegeli & Peter) | 598 |
| latifolium Froelich ex Link | (H. brevifolium Tausch) | 366 |
| laurinum Arvet-Touvet | | 365 |
| lautumiarum Dahlstedt | (H. laschii (F.W. Schultz & Schultz-Bip.) Zahn ssp. lautumiarum Dahlstedt) | 653 |
| lawsonii Villars | | 78 |
| laxifurcans (Bornmüller & Zahn) P.D. Sell & C. West | (H. erythrocarpum Peter ssp. laxifurcans Bornmüller & Zahn) | 415 |
| lazicum Boissier & Balansa ex Boissier | | 225 |
| leiocephalum Bartling ex Grisebach | | 27 |
| leiophaeum Arvet-Touvet & Gautier | | 184 |
| leiopogon Grenier | | 181 |
| lenifolium Norrlin | (H. macranthelum Naegeli & Peter ssp. lenifolium Norrlin) | 668 |
| leptoclados Peter | | 724 |
| leptocladum Grisebach ex Fries | | 291 |
| leptogrammoides Juxip | (H. diaphanoides Lindeberg ssp. leptogrammum sensu Zahn) | 141 |
| leptophyton Naegeli & Peter | (P. mollicaulis (Vukotinovič) Soják) | 707 |
T | leptophyton Naegeli & Peter ssp. atriceps Naegeli & Peter var. marchfelense Zahn | | 707 |
| leucense F.O. Wolf | (H. hybridiforme Zahn) | 701 |
| leucopannosum Behr & Zahn | | 251b |
| leucophaeum Grenier & Godron | | 50 |
T | leucophaeum Grenier & Godron ssp. ophiobrachion Käser & Zahn | | 50 |
| leucothecum Uechtritz ex Freyn | (H. pallidum Bivona-Bernardi ssp. leucothecum (Uechtritz ex Freyn) Zahn) | 126 |
| levicaule Jordan | (H. vulgatum Fries) | 145 |
| lindebergii Nyman | | 135 |
| loeflingianum Arvet-Touvet & Gautier | | 110 |
| lomnicense Woloszcak | | 285 |
| longifolium Schleicher ex Hornemann | | 109 |
| longipilum Torrey | | 542 |
| longiscapum (Boissier & Kotschy ex Naegeli & Peter) Zahn | | 638 |
| longisquamum Peter | (H. pachylodes Naegeli & Peter; P. pachlodes (Peter) Soják) | 582 |
T | longisquamum Peter ssp. naretense Huber-Morath | | 582 |
| longistolonosum Vollmann | | 702 |
| luebeckii Dahlstedt | (H. lachenalii C.C. Gmelin ssp. luebeckii Dahlstedt) | 142 |
| lugiorum Zahn | (H. caesium (Fries) Fries ssp. lugiorum Zahn) | 147 |
| lycopifolium Froelich | | 379 |
| macilentum Fries | (H. epimedium Tausch) | 325 |
| macranthelum Naegeli & Peter | | 668 |
| macranthum (Ten.) Tenore | | 575b |
| macrodon Naegeli & Peter | | 383 |
| macrodontoides (Zahn) Zahn | | 387 |
| macrogonum (Zahn) P.D. Sell & C.West | (H. muricellum Fries ssp. macrogonum Zahn) | 432 |
| macrolepis Boissier | (H. sparsum Frivaldszky ssp. macrolepis Boissier) | 412 |
| macrophyllopodum (Zahn) Juxip | (H. vulgatum Fries ssp. macrophyllopodum Zahn) | 145 |
| macrostolonum G. Schneider | (H. cernuiforme (Naegeli & Peter) Zahn) | 635 |
| macrotrichum Boissier | (P. x macrotricha (Boissier) F.W. Schultz & Schultz-Bip.) | 684 |
| maculatum Schrank | | 165 |
T | magistri Godron ssp. magistri | (H. laevigatum Willdenow ssp. magistri (Godron) | |
| magyaricum Naegeli & Peter | (H. bauhini Schultes ex Besser ssp. magyaricum (Naegeli & Peter) Zahn) | 696 |
| mannagettae Freyn | (H. sparsum Frivaldszky ssp. mannagettae (Freyn) Zahn) | 412 |
| marchesettianum Zahn | | 400 |
| marmoricula P.D. Sell & C. West | (H. erythrocarpum Peter ssp. sintenisii Uechtritz ex Zahn) | 415 |
| maschukense Litwinow & Zahn | (P. x maschukense (Litwinow & Zahn) Soják) | 679 |
| mattfeldianum Zahn | | 251a |
T | mattfeldianum Zahn ssp. poliophorum Behr & Zahn | | 251a |
| mayeri Vollmann | | 703 |
| medianiforme (Litwinow & Zahn) Juxip | (H. murorum L. ssp. medianiforme Litwinow & Zahn) | 139 |
| megatrichum Borbás | | 753 |
T | megatrichum Borbás ssp. akschscherense Bornmüller & Zahn | | 753 |
| melanops Arvet-Touvet | (H. adusticeps Zahn) | 162 |
| microtum Boissier | | 436 |
| misaucinum Naegeli & Peter | | 51 |
| mixtiforme Arvet-Touvet | | 95 |
| mixtum Froelich | | 92 |
| mollisetum (Naegeli & Peter) Dahlst. | (H. cymosum Linnaeus ssp. mollisetum (Naegeli & Peter) Dahlstedt) | 649 |
| mollitum Arvet-Touvet | | 64 |
| monnieri Arvet-Touvet | | 48 |
| montanum Naegeli & Peter | | 725 |
| morisianum Reichenbach | (H. pilosum Schleicher ex Froelich) | 36 |
| mougeotii Froelich | (H. vogesiacum (Kirschleger) Fries) | 102 |
| multiglandulosum (Naegeli & Peter) Zahn | | 70 |
| muricellum Fries | | 432 |
| murorum Linnaeus | (H. sylvaticum Linnaeus) | 139 |
T | murorum Linnaeus ssp. epipsilum Nylander | | 139 |
T | murorum Linnaeus ssp. fagetorum Korb. & Zahn | | 139 |
T | murorum Linnaeus ssp. pseudoclavifrons Degen & Zahn var. medium Schack & Zahn | | 139 |
| naegelianum Panãiç | | 411 |
| naegelii (Norrlin ex Naegeli & Peter) Zahn | | 662 |
| neglectum Norrlin | (H. ambiguum Ehrhart ssp. neglectum Norrlin) | 667 |
| nemorense Jordan | (H. murorum Linnaeus ssp. nemorense Jordan) | 139 |
| neopicris Arvet-Touvet | | 357 |
| nestleri Villars | (H. cymosum Linnaeus ssp. nestleri (Villars) Naegeli & Peter) | 648 |
| nigrantipilum Norrlin & Lindberg fil. | (H. cymosum Linnaeus ssp. nigrantipilum Norrlin & Lindeberg fil.) | 648 |
| nigrescens Willdenow | | 263 |
T | nigrescens Willdenow ssp. nivimontis Oberny & Zahn | | 263 |
| nigricarinum Naegeli & Peter | (H. lathraeum Peter) | 598 |
| nigriceps Naegeli & Peter | (H. iseranum Uechtritz ssp. nigriceps Naegeli & Peter) | 640 |
| nigritum Uechtritz | | 342 |
| nigrohispidum Dahlstedt | (H. cymosum Linnaeus ssp. nigrohispidum Dahlstedt) | 648 |
| niphobium Naegeli & Peter | (H. niphostribes Peter) | 588 |
| niphostribes Peter | (H. niphobium Naegeli & Peter) | 588 |
| niveobarbatum Arvet-Touvet ex Gottschlich | | 406a |
| niveum (Mueller-Arg.) Zahn | (H. saussuroides (Arvet-Touvet) Arvet-Touvet | 578 |
| norvegicum Fries | | 136 |
| nothum Huter | (H. fulgens Naegeli & Peter) | 624 |
| nubiceps Norrlin | (H. cymosum Linnaeus ssp. nubiceps Norrlin) | 648 |
T | nydeggerorum Gottschlich | | 684a |
| nymphaetum Dahlstedt | (H. murorum Linnaeus ssp. nymphaetum Dahlstedt) | 139 |
| oblongum Jordan | (H. murorum Linnaeus ssp. oblongum (Jordan) Zahn) | 139 |
| obornyanum Naegeli & Peter | (H. polymastix Peter) | 727 |
T | obornyanum Naegeli & Peter ssp. superpratense Korb & Zahn | | 727 |
| obscurum Rchb. | (P. officinarum C.H. & F.W. Schultz) | 695 |
| officinarum C.H. & F.W. Schultz | (H. pilosella Linnaeus) | 577 |
T | ohacsense Kitaibel ex Kanitz ssp. pictirohacsense Huber-Morath | | 273 |
| olivaceum Grenier & Godron | | 104 |
| olympicum Boissier | | 390 |
| onegense Norrlin | (H. caespitosum Dumortier ssp. silvicolum (Fries l.c.) Zahn) | 629 |
| onosmaceum (Zahn) Juxip | (H. tschamkorijense Zahn ssp. onosmaceum Zahn) | 416 |
| onosmoides Fries | | 128 |
T | onosmoides Fries ssp. eulasium Dahlstedt | | 128 |
| onosmopsis (Zahn) Sell & West | (H. tschamkorijense Zahn ssp. onosmopsis Zahn) | 416 |
| oreiocephalum Zahn | | 185 |
| oreophilum Heuffler | | 610 |
| oroglaucum Behr & Zahn ssp. oroglaucum | | 411b |
| ovalescens Omang | (H. laevigatum Willdenow ssp. ovalescens (Zahn) Omang; H. vittatulum Dahlstedt) | 360 |
| ovalifrons (Woronow & Zahn) Juxip | (H. murorum Linnaeus ssp. ovalifrons (Woronow Zahn) Zahn) | 139 |
| oxyodon Fries | | 11 |
| P. x auriculoides (A.F. Láng) Sell & West | | 743 |
| pachylodes Naegeli & Peter | (H. longisquamum Peter) | 582 |
| pachypilon Peter | (H. permutatum Naegeli & Peter; H. eurylepium Peter) | 599 |
| pallescens Waldstein & Kitaibel | (H. incisum Hoppe) | 157 |
T | pallescens Waldstein & Kitaibel ssp. trachselianum Christ | | 157 |
| pallidiflorum Jordan ex Hausmann | | 311 |
| pallidum Bivona-Bern. fil. | (H. schmidtii Tausch) | 126 |
| paltinae Jávorka & Zahn | | 422 |
| pamphilii Arvet-Touvet | | 45 |
| paniculatum Linnaeus | | 536 |
| pannoniciforme Litwinow & Zahn | | 756 |
| pannonicum Naegeli & Peter | (H. auriculoides A. Láng) | 750 |
| pannosum Boissier | | 207 |
| paphlagonicum Freyn & Sintenis | (H. pilosissimum Frivaldszky ssp. paphlagonicum Freyn & Sintenis) | 234 |
| pardoanum Arvet-Touvet & Gautier | | 296 |
T | pardoanum Arvet-Touvet & Gautier ssp. pittonianum Arvet-Touvet & Gautier | | 296 |
| parryi Zahn | | 544 |
T | patagiarium K. Johansson ex Dahlst. | (H. laevigatum Willdenow ssp. patagiarium K. Johansson) | 360 |
| patentissimum Freyn & Sintenis | (H. jankae Uechtritz ssp. patentissimum Freyn & Sintenis) | 247 |
T | pavichii Heuffel | | 694 |
T | pavichii Heuffel ssp. fussianum (Naegeli & Peter) Zahn var. fussianum | | 694 |
| pedemontanum Burnat & Gremli | | 302 |
| peleterianum Mérat | | 576 |
| pellitum Fries | | 194 |
| periphanoides Zahn | | 583 |
| permutatum Naegeli & Peter | (H. x pachypilon Peter) | 599 |
| perveniens Norrlin & Lindeberg fil. | (H. macranthelum Naegeli & Peter ssp. perveniens Norrlin & Lindeberg fil.) | 668 |
| peterianum Käser ex Zahn | | 619 |
| phlomoides Froelich | | 77 |
| phrygiense Sell & West | (H. subrosulatum Freyn & Sintenis ssp. phrygium Bornmüller & Zahn) | 216 |
| picroides Villars | | 353 |
| pictiforme (Zahn) Zahn | | 180 |
| pictum Persoon | | 176 |
| pietroszense Degen & Zahn | | 272 |
| piliferum Hoppe | | 70 |
T | pilosella L. ssp. pseudopachyanthoides Schack & Zahn | | 577 |
T | pilosella L. ssp. rhodoglossum Dahlst. | | 577 |
| pilosella Linnaeus | (Pilosella officinarum F.W. Schultz & Schultz-Bip.) | 577 |
| piloselliflorum Naegeli & Peter | | 642 |
T | piloselliflorum Naegeli & Peter ssp. arense Norrlin | | 642 |
| pilosellinum F.W. Schultz | | 738 |
| pilosellinum F.W. Schultz ssp. | (H. subgermaniciforme Zahn) | |
| piloselloides Villars | (H. florentinum Allioni; P. piloselloides (Villars) Soják; H. praealtum Villars; H. collinum Bernhardi) | 695 |
T | piloselloides Villars ssp. genevense Zahn | | 695 |
T | piloselloides Villars ssp. westoeoi Almquist | | 695 |
| pilosissimum Frivaldszky | | 234 |
| pilosum Schleicher ex Froelich | (H. morisianum Reichenbach) | 36 |
| pinicola Arvet-Touvet & Gautier | (H. praecox Schultz-Bip. ssp. pinicola (Arvet-Touvet & Gautier) Zahn) | 334 |
| pintodasilvae de Retz | | 579 |
T | pintodasilvae de Retz | (pseudopilosella Ten. ssp. tenuicaule-pilosella Naegeli & Peter) | 579 |
| plantagineum Arvet-Touvet | | 42 |
T | plantagineum Arvet-Touvet ssp. gapense Arvet-Touvet var. rubescens de Retz | | 42 |
| platyphyllum (Arvet-Touvet) Arvet-Touvet | | 406 |
| plumnieri Arvet-Touvet | (H. sublongifolium Zahn) | 39 |
| pocuticum Woloszczak | | 327 |
T | polatschekii Gottschlich | (H. taurinense - H. inuloides) | 402a |
| poliodermum Dahlstedt | | 675 |
| pollichiae Schultz-Bip. | (H. maculatum Schrank ssp. pollichiae (Schultz-Bip.) Zahn) | 165 |
| polymastix Peter | (H. obornyanum Naegeli & Peter) | 727 |
| polymnoon (Naegeli & Peter) Juxip | (H. cymosum Linnaeus ssp. polymnoon Naegeli & Peter) | 648 |
| porcerigenum Litwonow & Zahn | | 754 |
| porrectum Fries | | 59 |
| porrifolium L. | | 1 |
| pospichalii Zahn | | 31 |
| praealtum Villars ex Gochnat | (H. florentinum Allioni ssp. praealtum (Villars) Naegeli & Peter) | 695 |
| praecipuiforme Dahlstedt | (H. congruens Norrlin; H. diaphanoides Lindeberg ssp. subarctoum Norrlin; H. subarctoum Norrlin) | 141 |
| praecox Schultz-Bip. | (H. glaucinum Jordan) | 127 |
| praecurrens Vukotinovič | | 152 |
T | praecurrens Vukotinovič ssp. wolfii K. Johanssons & G. Samuelsson | (H. wolfii K. Johanssons & G. Samuelsson) | 152 |
| praelongipes Zahn | (H. longipes Freyn & Sintenis) | 226 |
| prantlii (Naegeli & Peter) Zahn | (H. x fallacinum F. W. Schultz ssp. prantlii (Naegeli & Peter) Zahn) | 741 |
| pratense Tausch | (H. caespitosum Dumortier) | 629 |
| predilense (Naegeli & Peter) Zahn | | 10 |
| prenanthoides Villars | | 313 |
| prinzii Käser & Zahn | | 168 |
| procerigenum Litwinow | | 754 |
| procerum Fries | | 678 |
| prostratum DC. ex Lamarck & DC. | | 376 |
| protractum Fries | | 336 |
| prussicum Naegeli & Peter | | 631 |
| prussicum Naegeli & Peter ssp. chlorops Naegeli & Peter | (H. chlorops Naegeli & Peter) | 633 |
| pseudeffusum Peter | | 695/1 |
| pseudo-blyttii Norrlin | | 620/2 |
| pseudobifidum Schur | (H. trebevicianum K. Maly) | 154 |
| pseudocaesium Degen & Zahn | | 418 |
| pseudocerinthe (Gaudin) Koch | | 292 |
| pseudocorymbosum Gremli ex Zahn | | 381 |
| pseudodontotrichum Huber-Morath | (H. schmidtii Tausch ssp. pseudodontotrichum Huber-Morath) | 126 |
| pseudomagyaricum Zahn | | 740a |
| pseudopilosella (Tenore) Tenore | | 579 |
| pseudoprasinops Zahn | | 179 |
| pseudoscardicum Behr & Zahn | | 251 |
T | pseudoscardicum Behr & Zahn ssp. pseudoscardicum | | 251 |
| pseudostenoplecum Zahn | | 355 |
| pseudotrichodes Zahn | | 658 |
| pseudovahlii de Retz | | 609a |
| pteropogon Arvet-Touvet | | 190 |
| pubescens Lindblom | (H. cymosum Linnaeus ssp. pubescens (Lindblom) Fries) | 648 |
| pulchellum Grenier | | 186 |
| pyrenaicum Jordan | | 397 |
| racemosum Waldstein & Kitaibel ex Willdenow | | 395 |
| radiocaule Froelich | (H.umbelliferum Naegeli & Peter ssp. acrosciadium (Naegeli & Peter) Hayek) | 740 |
| raiblense Huter | (H. arnoserioides Naegeli & Peter) | 697 |
| ramondii Grisebach | | 91 |
| ramosossimum Schleicher ex Hegetschweiler | | 351 |
| ramosum Waldstein & Kitaibel ex Willdenow | | 173 |
| rapunculoides Arvet-Touvet | | 321 |
| ravaudii Arvet-Touvet | | 199 |
| rectum Griseb. ex Arvet-Touvet & Gautier | | 401 |
T | rectum Grisebach ssp. pseuderiophorum (H. Loret & Timbal-Lagrave) Zahn | | 401 |
| retyezatense Degen & Zahn | | 417 |
| richenii Murr | | 61 |
| riphaeum Uechtritz | | 341 |
T | rohacsense Kitaibel ex Kanitz ssp. oophyllum Vetter & Zahn | | 273 |
| rohacsense Kitaibel ex Kanitz. | | 273 |
| rothianum Wallroth | (H. setigerum Tausch) | 685 |
| rubellum (Koch) Zahn | (H. guthnickianum Hegetschweiler) | 661 |
| rubriflorum Zahn | (H. erectum (Naegeli & Peter) Zahn) | 612 |
| rubrum Peter | | 628 |
| rupestre Allioni | | 188 |
| rupicola Fries var. franconicum Grisebach | (H. franconicum (Grisebach) Zahn) | 7 |
| ruprechtii Boissier | (P. ruprechtii (Boissier) P.D. Sell & C. West; H. igneum Freyn) | 699 |
| sabaudum Linnaeus | | 377 |
| sabinum Sebastiani & Mauri | (H. cymosum Linnaeus ssp. sabinum (Sebastiani & Mauri) Naegeli & Peter) | 648 |
| saelani Norrlin | | 620/3 |
| sagittatum (Lindeberg) Dahlstedt | (H. fuscocinereum Norrlin) | 140 |
T | sagittatum (Lindeberg) Dahlstedt ssp. sincerum Noto | | 140 |
T | sagittatum (Lindeberg) Norrlin ssp. vilmorinii de Retz | | 140 |
| salaevense (Rapin ex Fries) Zahn | (H. salevense Rapin) | 330 |
| salayense Zahn | | 601 |
| sandozianum Zahn | | 183 |
| sandrasicum (Hartvig & Strid) | (P. sandrasica Hartvig & Strid) | 676/2 |
| sartorianum Boissier & Heldreich | | 249 |
| saussureoides Arvet-Touvet | (H. niveum (Mueller-Arg.) Zahn) | 578 |
| saxatile Jacquin | | 23 |
| saxifragum Fries | | 129 |
T | saxifragum Fries ssp. extensum (Lübeck) Zahn | | 129 |
| scabrum Michaux | | 527 |
| scandinavicum Dahlstedt | | 637 |
| scapigerum Boisssier | | 304 |
| scardicum Bornmüller & Zahn | | 243a |
| schmidtii Tausch | (H. pallidum Bivona-Bern. fil.) | 126 |
T | schmidtii Tausch ssp. odontotrichodes (Behr & Zahn) | | 126 |
T | schmidtii Tausch ssp. odontotrichodes (Behr & Zahn) var. odontotrichodes svar. Odontotrichodes | | 126 |
T | schneidii Schack & Zahn | | 743/1 |
| schultesii F.W. Schultz | (P. schultesii (F.W. Schultz) F.W. Schultz & Schultz-Bip.) | 591 |
T | schultesii F.W. Schultz ssp. auriculiforme (Fries) | | 591 |
| sciadophorum Naegeli & Peter | | 656 |
| scorzonerifolium Villars | | 37 |
| scouleri Hooker | | 537 |
| septendrionale Norrlin | (H. piloselloides Villars ssp. almquistii Naegeli & Peter) | 695 |
| sericicaule (Schelkownikow & Zahn) Juxip | (H. tschamkorijense Zahn ssp. sericaule Schelkownikow & Zahn) | 416 |
| sericophyllum Neiceff & Zahn | | 244 |
T | sericophyllum Neiceff & Zahn ssp. tmoleum (Huber-Morath) | | 244 |
| setigerum Tausch | (H. rothianum Wallroth) | 685 |
| simia (Huter ex Zahn) Zahn | | 270 |
| smolandicum Almquist ex Dahlstedt | | 149 |
T | smolandicum Almquist ex Dahlstedt ssp. smolandicum | | 149 |
| solidagineum Fries | | 100 |
| sommerfeltii Lindeberg | | 131 |
| sonchoides Arvet-Touvet | | 99 |
| souliei Arvet-Touvet & Gautier | | 105 |
| sparsiramum Naegeli & Peter | (H. subglaberrimum (Sendtner) Zahn) | 5 |
| sparsum Frivaldszky | | 412 |
T | sparsum Frivaldszky ssp. livadicanum Behr & Zahn | | 412 |
T | sparsum Frivaldszky ssp. naegelianiforme Behr & Zahn var. stalnaepatrolae Behr & Z. | | 412 |
T | sparsum Frivaldszky ssp. nigrilacus Nyarady | | 412 |
T | sparsum Frivaldszky ssp. schuettianum Zahn var. glandulisquamosum Gottschlich | | 412 |
T | sparsum Frivaldszky ssp. silesiacum (Krause) Zahn | | 412 |
| spathophyllum Naegeli & Peter | (H. longiscapum (Boissier & Kotschy ex Naegeli & Peter) Zahn ssp. spathophyllum Naegeli & Peter) | 638 |
| speciosum Willdenow ex Hornemann | | 69 |
| spectabile Fries | | 65 |
| spectabile Norrlin | (H. cymosum L. ssp. suprafastigiatum Naegeli & Peter) | 648 |
| spherocephalum Froelich | | 593 |
| spurium Chaix | | 651 |
| staticifolium Allioni | (Tolpis staticifolia (all.) Schultz-Bip.) | 446 |
| stelligerum Froelich ex DC. ssp. stelligerum | | 137 |
T | stenoglossophyllum Behr & Zahn | | 411a |
| stenoplecum Arvet-Touvet | | 354 |
| stenoprionatum Schack & Zahn | (H. laurinum Arvet-Touvet ssp. stenoprionatum Schack & Zahn) | 365 |
| sterzingense Zahn | | 284 |
| stipotrichum Arvet-Touvet | (H. cymosum Linnaeus ssp. stipotrichum Almquist ex Dahlstedt) | 648 |
| stoloniflorum Waldstein & Kitaibel | (P. stoloniflora (Waldstein & Kitaibel) F.W. Schultz & Schultz-Bip.) | 616 |
| subarctoum Norrlin | (H. diaphanoides Lbg. ssp. subarctoum Norrlin; H. congruens Norrlin; H. praecipuiforme Dahlstedt) | 141 |
| subdecolorans (Norrlin) Dahlstedt | | 621 |
| subeminens Touton & Zahn | | 626 |
| subfusciforme Käser & Zahn | | 626a |
| subgermaniciforme Zahn | | 741a |
| subgermaniciforme Zahn | (H. pilosellinum (F. W. Schultz) Zahn ssp. subgermaniciforme Zahn) | 741a |
| subglaberrimum (Sendtner) Zahn | (H. sparsiramum Naegeli & Peter) | 5 |
| sublongifolium Zahn | (H. plumieri Arvet-Touvet) | 39 |
| subramosum Loennroth | | 148 |
T | subramosum Loennroth ssp. duplicatum Almquist ex Dahlsted | | 148 |
T | subramosum Loennroth ssp. gravastellum Dahlstedt | | 148 |
T | subramosum Loennroth ssp. purreyanum (F. J. Hanbury) | | 148 |
| subrigidum Almquist | | 172 |
| subrosulatum Freyn & Sintenis | | 216 |
| subrubens Arvet-Touvet | | 600 |
| subsericeum Arvet-Touvet | | 85 |
T | subsericeum Arvet-Touvet ssp. subsericeum var. gavarnicum (Rouy) Zahn | | 85 |
| subsilvularum (Z.) P.D. Sell & C. West | (H. murorum Linnaeus ssp. subsilvularum Zahn) | 139 |
| subspeireum Norrlin | (H. macranthelum Naegeli & Peter ssp. subspeireum Norrlin) | 668 |
| substellatum Arvet-Touvet & Gautier | | 138 |
T | substellatum Arvet-Touvet & Gautier ssp. tordanum Zahn var. strizakanum Behr & Zahn | | 138 |
| substoloniflorum Naegeli & Peter | | 613 |
| subtardans (Naegeli & Peter) Zahn | | 584 |
| subtilissimum Zahn | | 318 |
| subtomentosum (Burnat) Zahn | | 196 |
| subuliferum Naegeli & Peter | | 580 |
| sudeticum Sternberg | | 340 |
| sylvaticum (Linnaeus) Grufberg | (H. murorum Linnaeus) | 139 |
| sylvularum Jordan ex Boreau | (H. murorum Linnaeus ssp. sylvularum (Jordan ex Boreau) Zahn) | 139 |
| syreistschikovii (Zahn) Juxip | (H. cincinnatum Fries ssp. syreistschikovii Zahn) | 374 |
| tamderense Huber-Morath | (H. jurassicum Grisebach ssp. tamderense Huber-Morath) | 319 |
| taurinense Jordan | | 402 |
| tauschii Zahn | (H. umbelliferum Naegeli & Peter; H. densiflorum Tausch) | 740 |
| teberdense (Litwinow & Zahn) | (H. inuloides Tausch ssp. teberdense Litwinow & Zahn) | 361 |
| tendinum Naegeli & Peter | | 659 |
| tenerescens Norrlin | (H. ambiguum Ehrhart ssp. tenerescens Norrlin) | 667 |
| tephrocephalum Vukotinovič | | 698 |
| tephrocerinthe Zahn | | 83 |
T | tephrocerinthe Zahn ssp. berganum (Arvet-Touvet) Zahn | | 83 |
| tephrodes Naegeli & Peter | | 709 |
| tephropogon Zahn | | 161 |
| tephrosoma (Naegeli & Peter) Zahn | (H. kueckenthalianum Zahn) | 271 |
| thomasianum Zahn | | 281 |
T | tmoleum Huber-Morath | (H. sericophyllum Neiceff & Zahn ssp. tmoleum Huber-Morath) | 244 |
| tomentosum (Linnaeus) Linnaeus | (H. lanatum (Linnaeus) Villars) | 189 |
| tommasinii Reichenbach fil. | | 389 |
| tossianum (Zahn) P.D. Sell & C. West | (H. murorum Linnaeus ssp. tossianum Zahn) | 139 |
| traillii Greene | | 519 |
| transbottnicum Norrlin | (H. scandinavicum Dahlstedt ssp. transbottnicum Norrlin) | 637 |
| transsilvanicum Heuffel | | 151 |
T | transsilvanicum Heuffel ssp. transsilvanicum var. leptocephalum Vukotinovič | | 151 |
| trebevicianum K. Maly | (H. pseudobifidum Schur) | 154 |
| triangulare (Almquist) Zahn | | 143 |
| trichopsis (Zahn) Zahn | | 164 |
| triste Willdenow | | 555 |
| tschamkorijense Zahn | | 416 |
| tubulascens Norrlin | | 671 |
| turbinellum Zahn | | 409 |
| turritifolium Arvet-Touvet | | 333 |
| umbella Naegeli & Peter | | 664 |
| umbellatum Linnaeus | | 362 |
| umbelliferum Naegeli & Peter | (H. densiflorum Tausch; H. tauschii Zahn) | 740 |
| umbrosum Jordan | | 320 |
| uplandiae Naegeli & Peter | (H. cymosum Linnaeus ssp. uplandiae Naegeli & Peter) | 648 |
| urticaceum Arvet-Touvet & Ravaud | | 305 |
T | urticaceum Arvet-Touvet & Ravaud ssp. verdonianum de Retz | | 305 |
| vahlii Froelich | | 609 |
| valdepilosum Villars | | 55 |
| valirense Arvet-Touvet & Gautier | | 111 |
| velutinum Hegetschweiler | | 577b |
| venetianum Naegeli & Peter | (H. aridum Freyn; P. arida (Freyn) Soják; H x florentoides Arvet-Touvet) | 705 |
T | venostorum (Zahn) Gottschlich | (H. illyricum Fries ssp. venostorum Zahn) | 21 |
| venosum Linnaeus | | 520 |
| verbascifolium Villars | | 200 |
| verruculatum Link | (P. x verruculata (Link) Soják) | 681 |
| vetteri Ronninger | (H. vetterianum Zahn) | 431a |
| villosum Jacquin | | 35 |
| virgicaule Naegeli & Peter | | 28 |
| viride Arvet-Touvet | | 335 |
| viridifolium Peter | (H. latisquamum Naegeli & Peter) | 589 |
| virosiforme Woronow & Zahn | (H. cincinnatum Fries ssp. virosiforme (Woronow & Zahn) Zahn) | 374 |
| virosum Pallas | | 369 |
| viscosum Arvet-Touvet | | 350 |
| visianii (F.W. Schultz & Schultz-Bip.) Schinz & Thellung | (H. adriaticum Naegeli; P. visanii F.W. Schultz & Schultz-Bip.) | 704 |
| vittatulum Dahlstedt | (H. laevigatum Willd. ssp. ovalescens (Zahn) Omang; H. ovalescens Omang) | 360 |
| vogesiacum (Kirschleger) Fries | | 102 |
| vollmannii Zahn | | 267 |
| vulgatum auct. non Fries | (H. lachenalii C. C. Gmelin) | 145 |
| vulgatum Fries | (H. levicaule Jordan) | 145 |
T | vulgatum Fries ssp. impressiforme Dahlstedt | | 145 |
| waldsteinii Tausch | | 211 |
T | waldsteinii Tausch ssp. trichobracchium Zahn var. galicia Behr & Zahn | | 211 |
| wiesbaurianum Uechtritz ex Baenitz | | 130 |
T | wiesbaurianum Uechtritz ssp. bridelianum (Zahn) Zahn var. amphifloccum Zahn | | 130 |
T | wiesbaurianum Uechtritz ssp. livadicae Behr & Zahn | | 130 |
T | wiesbaurianum Uechtritz ssp. planchonianum (Timbal & Loret) Z. var. planchonianum | | 130 |
T | wiesbaurianum Uechtritz ssp. subcinereum Z. var. cinereopallens Z. | | 130 |
| wilczekianum Arvet-Touvet | | 60 |
| zahnii Oborny | | 40 |
| zizianum Tausch | (P. ziziana (Tausch) F.W. Schultz & Schultz-Bip) | 732 |
| x duplex Peter | (H. cernuiforme (Naegeli & Peter) Zahn) | 635 |
| x fallacinum F. W. Schultz | | 741 |
| x faurei (Arvet-Touvet) Arvet-Touvet | (H. glaciellum Naegeli & Peter) | 603 |
| x florentoides Arvet-Touvet | (H. aridum Freyn) | 705 |
| x fuscum Fries | (H. blyttianum Fries) | 620 |
| x piloselliflorum Naegeli & Peter | (H. apatelium Naegeli & Peter) | 641 |
| x spurium Chaix | (H. laschii (F.W. Schultz & Schultz-Bip.) Zahn) | 653 |