| Lactuca abietina (Boiss. & Balansa) Bornm. |
Accepted |
8 |
| Lactuca acanthifolia (Willd.) Boiss. |
Accepted |
9 |
| Lactuca aculeata Boiss. & Kotschy |
Accepted |
9 |
| Lactuca alpina (L.) A. Gray |
Accepted |
9 |
| Lactuca attenuata Stebbins |
Accepted |
16 |
| Lactuca aurea (S. Bip.) Stebbins |
Accepted |
8 |
| Lactuca biennis (Moench) Fernald |
Accepted |
17 |
| Lactuca bourgaei (Boiss.) Irish & N. Taylor |
Accepted |
8 |
| Lactuca bracteata Hook. & Thomson ex C. B. Clarke |
Accepted |
8 |
| Lactuca brunoniana (DC.) Wall. ex C. B. Clarke |
Accepted |
8 |
| Lactuca canadensis L. |
Accepted |
17 |
| Lactuca crambifolia (Bunge) Boiss. |
Accepted |
8 |
| Lactuca cyprica (Rech.) N. Kilian & Greuter |
Accepted |
9 |
| Lactuca dissecta D. Don |
Accepted |
8 |
| Lactuca dolichophylla Kitam. |
Accepted |
8 |
| Lactuca floridana (L.) Gaertn. |
Accepted |
17 |
| Lactuca formosana Maxim. |
Accepted |
9 |
| Lactuca georgica Grossh. |
Accepted |
9 |
| Lactuca glandulifera Hook. |
Accepted |
8 |
| Lactuca glauciifolia Boiss. |
Accepted |
9 |
| Lactuca graminifolia Michx. |
Accepted |
17 |
| Lactuca hirsuta Muhl. ex Nutt. |
Accepted |
17 |
| Lactuca homblei D. Wild. |
Accepted |
9 |
| Lactuca indica L. |
Accepted |
9 |
| Lactuca inermis Forssk. |
Accepted |
8 |
| Lactuca intricata Boiss. |
Accepted |
9 |
| Lactuca lessertiana (Wall.) Wall. ex C. B. Clarke |
Accepted |
8 |
| Lactuca longidentata Moris ex DC. |
Accepted |
8 |
| Lactuca ludoviciana (Nutt.) Riddell |
Accepted |
17 |
| Lactuca macrorhiza (Royle) Hook. |
Accepted |
8 |
| Lactuca marschallii Stebbins |
Accepted |
8 |
| Lactuca microcephala DC. |
Accepted |
9 |
| Lactuca muralis (L.) Fresen. |
Accepted |
9 |
| Lactuca orientalis (Boiss.) Boiss. |
Accepted |
18 |
| Lactuca palmensis Bolle |
Accepted |
8 |
| Lactuca parishii Craib |
Accepted |
9 |
| Lactuca perennis L. |
Accepted |
9 |
| Lactuca persica Boiss. |
Accepted |
8 |
| Lactuca picridiformis Boiss. |
Accepted |
8 |
| Lactuca plumieri (L.) Gren. & Godr. |
Accepted |
8 |
| Lactuca quercina L. |
Accepted |
9 |
| Lactuca racemosa Willd. |
Accepted |
8 |
| Lactuca raddeana Maxim. |
Accepted |
9 |
| Lactuca rapunculoides (DC.) C. B. Clarke |
Accepted |
8 |
| Lactuca repens (L.) Benth. & Hook. |
Accepted |
8 |
| Lactuca rostrata (Blume) Boerl. |
Accepted |
9 |
| Lactuca saligna L. |
Accepted |
9 |
| Lactuca sativa L. |
Accepted |
9 |
| Lactuca schulzeana Büttner |
Accepted |
8 |
| Lactuca serriola L. |
Accepted |
9 |
| Lactuca sibirica (L.) Benth. ex Maxim. |
Accepted |
9 |
| Lactuca takhtadzhianii Sosn. |
Accepted |
9 |
| Lactuca tatarica (L.) C. A. Mey. |
Accepted |
9 |
| Lactuca tenerrima Pourr. |
Accepted |
8 |
| Lactuca tetrantha B. L. Burtt & P. H. Davis |
Accepted |
9 |
| Lactuca triangulata Maxim. |
Accepted |
9 |
| Lactuca triquetra (Labill.) Boiss. |
Accepted |
9 |
| Lactuca tuberosa Jacq. |
Accepted |
8 |
| Lactuca undulata Ledeb. |
Accepted |
9 |
| Lactuca viminea (L.) J. Presl & C. Presl |
Accepted |
9 |
| Lactuca viminea subsp. chondrilliflora (Boreau) S. -Lag. |
Accepted |
9 |
| Lactuca viminea subsp. ramosissima (All.) Arcang. |
Accepted |
9 |
| Lactuca virosa Habl. |
Accepted |
9 |
| Lactuca virosa subsp. livida (Boiss. & Reut.) Ladero & A. Velasco |
Accepted |
9 |
| Lactuca watsoniana Trel. |
Accepted |
17 |
| Lactuca alpina Benth. & Hook. |
Unresolved |
9 |
| Lactuca angustana Auct. |
Unresolved |
9 |
| Lactuca canadensis (L.) Farw. |
Unresolved |
17 |
| Lactuca canadensis A. Gray |
Unresolved |
17 |
| Lactuca graciliflora Forbes & Hemsl. |
Unresolved |
8 |
| Lactuca haimanniana Asch. |
Unresolved |
8 |
| Lactuca hastata L. |
Unresolved |
8 |
| Lactuca laevigata Boiss. |
Unresolved |
9 |
| Lactuca laevigata C. B. Clarke |
Unresolved |
9 |
| Lactuca muralis (L.) Gaertn. |
Unresolved |
9 |
| Lactuca taraxacifolia Schumach. & Thonn. |
Unresolved |
8 |
| Lactuca viminea C. B. Clarke |
Unresolved |
9 |
| Lactuca viminea subsp. chondrilliflora (Boreau) Malag. |
Unresolved |
9 |
| Lactuca virosa L. |
Unresolved |
9 |
| Lactuca virosa Lucé |
Unresolved |
9 |
| Lactuca macrantha C. B. Clarke |
Synonym of Chaetoseris macrantha (C. B. Clarke) C. Shih |
8 |
| Lactuca chelidoniifolia Makino |
Synonym of Crepidiastrum chelidoniifolium (Makino) Pak & Kawano |
5 |
| Lactuca denticulata (Houtt.) Maxim. |
Synonym of Crepidiastrum denticulatum (Houtt.) Pak & Kawano |
5 |
| Lactuca denticulata (Houtt.) Maxim. |
Synonym of Crepidiastrum denticulatum (Houtt.) Pak & Kawano |
5 |
| Lactuca keiskeana (Maxim.) Makino |
Synonym of Crepidiastrum keiskeanum (Maxim.) Nakai |
5 |
| Lactuca lanceolata (Houtt.) Makino |
Synonym of Crepidiastrum lanceolatum (Houtt.) Nakai |
5 |
| Lactuca dentata (Thunb.) Makino |
Synonym of Ixeridium dentatum (Thunb.) Tzvelev |
9 |
| Lactuca dentata (Thunb.) Makino |
Synonym of Ixeridium dentatum (Thunb.) Tzvelev |
9 |
| Lactuca thunbergii (A. Gray) Maxim. |
Synonym of Ixeridium dentatum (Thunb.) Tzvelev |
9 |
| Lactuca gracilis DC. |
Synonym of Ixeridium gracile (DC.) Pak & Kawano |
16 |
| Lactuca sagittarioides C. B. Clarke |
Synonym of Ixeridium sagittarioides (C. B. Clarke) Pak & Kawano |
5 |
| Lactuca chinensis (Thunb.) Nakai |
Synonym of Ixeris chinensis (Thunb.) Nakai |
9 |
| Lactuca hallaisanensis H. Lév. |
Synonym of Ixeris chinensis subsp. versicolor (Fisch.) Kitam. |
5 |
| Lactuca matsumurae Makino |
Synonym of Ixeris polycephala Cass. |
8 |
| Lactuca polycephala (Cass.) Benth. |
Synonym of Ixeris polycephala Cass. |
8 |
| Prenanthes abietina (Boiss. & Balansa) Kirp. |
Synonym of Lactuca abietina (Boiss. & Balansa) Bornm. |
8 |
| Lactuca amorgina Heldr. & Orph. ex Halácsy |
Synonym of Lactuca acanthifolia (Willd.) Boiss. |
9 |
| Lactuca eburnea Rech. |
Synonym of Lactuca acanthifolia (Willd.) Boiss. |
9 |
| Lactuca viminea subsp. alpestris (Gand.) Feráková |
Synonym of Lactuca alpestris (Gand.) Rech. |
9 |
| Cicerbita alpina (L.) Wallr. |
Synonym of Lactuca alpina (L.) A. Gray |
9 |
| Mulgedium alpinum (L.) Less. |
Synonym of Lactuca alpina (L.) A. Gray |
9 |
| Lactuca spicata Hitchc. |
Synonym of Lactuca biennis (Moench) Fernald |
17 |
| Mulgedium bourgaei Boiss. ex Boiss. |
Synonym of Lactuca bourgaei (Boiss.) Irish & N. Taylor |
8 |
| Mulgedium bracteatum (Hook. & Thomson) C. Shih |
Synonym of Lactuca bracteata Hook. & Thomson ex C. B. Clarke |
8 |
| Lactuca canadensis var. canadensis |
Synonym of Lactuca canadensis L. |
17 |
| Lactuca canadensis var. integrifolia (Bigelow) Torr. & A. Gray |
Synonym of Lactuca canadensis L. |
17 |
| Lactuca canadensis var. latifolia Kuntze |
Synonym of Lactuca canadensis L. |
17 |
| Lactuca canadensis var. obovata Wiegand |
Synonym of Lactuca canadensis L. |
17 |
| Lactuca integrifolia Bigelow |
Synonym of Lactuca canadensis L. |
17 |
| Steptorhamphus crambifolius Bunge |
Synonym of Lactuca crambifolia (Bunge) Boiss. |
8 |
| Steptorhamphus czerepanovii Kirp. |
Synonym of Lactuca crambifolia (Bunge) Boiss. |
8 |
| Cephalorrhynchus cypricus Rech. |
Synonym of Lactuca cyprica (Rech.) N. Kilian & Greuter |
9 |
| Lactuca longifolia (Wall.) DC. |
Synonym of Lactuca dolichophylla Kitam. |
8 |
| Pterocypsela formosana (Maxim.) C. Shih |
Synonym of Lactuca formosana Maxim. |
9 |
| Lactuca graciliflora DC. |
Synonym of Lactuca graciliflora Forbes & Hemsl. |
8 |
| Lactuca graminifolia var. graminifolia |
Synonym of Lactuca graminifolia Michx. |
17 |
| Cicerbita haimanniana (Asch.) Beauverd |
Synonym of Lactuca haimanniana E. A. Durand & Barratte |
8 |
| Lactuca hirsuta var. sanguinea (Bigelow) Fernald |
Synonym of Lactuca hirsuta Muhl. ex Nutt. |
17 |
| Cephalorrhynchus glandulosus Boiss. |
Synonym of Lactuca hispida DC. |
9 |
| Cephalorrhynchus tuberosus (Steven) Schchian |
Synonym of Lactuca hispida DC. |
9 |
| Cicerbita hispida Beauverd |
Synonym of Lactuca hispida DC. |
9 |
| Lactuca indica var. laciniata Hara |
Synonym of Lactuca indica L. |
9 |
| Lactuca indica var. ldracoglossa (Makino) Kitam. |
Synonym of Lactuca indica L. |
9 |
| Lactuca squarrosa (Thunb.) Maxim. |
Synonym of Lactuca indica L. |
9 |
| Prenanthes laciniata Houtt. |
Synonym of Lactuca indica L. |
9 |
| Pterocypsela indica (L.) C. Shih |
Synonym of Lactuca indica L. |
9 |
| Lactuca capensis Thunb. |
Synonym of Lactuca inermis Forssk. |
8 |
| Lactuca capensis Thunb. |
Synonym of Lactuca inermis Forssk. |
8 |
| Lactuca leptocephala Stebbins |
Synonym of Lactuca inermis Forssk. |
8 |
| Lactuca graeca Boiss. |
Synonym of Lactuca intricata Boiss. |
9 |
| Cicerbita lessertiana (Wall.) Mamgain & R. R. Rao |
Synonym of Lactuca lessertiana (Wall.) Wall. ex C. B. Clarke |
8 |
| Melanoseris lessertiana (DC.) Decne. |
Synonym of Lactuca lessertiana (Wall.) Wall. ex C. B. Clarke |
8 |
| Lactuca campestris Greene |
Synonym of Lactuca ludoviciana (Nutt.) Riddell |
17 |
| Cicerbita macrophylla (Willd.) Wallr. |
Synonym of Lactuca macrophylla (Willd.) A. Gray |
9 |
| Prenanthes cacaliifolia (M. Bieb.) Beauverd |
Synonym of Lactuca macrophylla (Willd.) A. Gray |
9 |
| Cicerbita prenanthoides (M. Bieb.) Beauverd |
Synonym of Lactuca marschallii Stebbins |
8 |
| Cephalorrhynchus kirpicznikovii Grossh. |
Synonym of Lactuca microcephala DC. |
9 |
| Cicerbita muralis (L.) Wallr. |
Synonym of Lactuca muralis (L.) Gaertn. |
9 |
| Mycelis muralis (L.) Dumort. |
Synonym of Lactuca muralis (L.) Gaertn. |
9 |
| Mycelis muralis (L.) Dumort. |
Synonym of Lactuca muralis (L.) Gaertn. |
9 |
| Lactuca orientalis subsp. orientalis |
Synonym of Lactuca orientalis (Boiss.) Boiss. |
18 |
| Scariola orientalis (Boiss.) Soják |
Synonym of Lactuca orientalis (Boiss.) Boiss. |
18 |
| Lactuca perennis |
Synonym of Lactuca perennis L. |
9 |
| Lactuca perennis subsp. perennis |
Synonym of Lactuca perennis L. |
9 |
| Steptorhamphus persicus (Boiss.) O. Fedtsch. & B. Fedtsch. |
Synonym of Lactuca persica Boiss. |
8 |
| Cephalorrhynchus picridiformis (Boiss.) Tuisl |
Synonym of Lactuca picridiformis Boiss. |
8 |
| Cicerbita plumieri (L.) Kirschl. |
Synonym of Lactuca plumieri (L.) Gren. & Godr. |
8 |
| Cicerbita plumieri (L.) Kirschl. |
Synonym of Lactuca plumieri (L.) Gren. & Godr. |
8 |
| Lactuca chaixii Vill. |
Synonym of Lactuca quercina L. |
9 |
| Lactuca quercina |
Synonym of Lactuca quercina L. |
9 |
| Lactuca quercina subsp. quercina |
Synonym of Lactuca quercina L. |
9 |
| Lactuca quercina subsp. wilhelmsiana |
Synonym of Lactuca quercina subsp. wilhelmsiana (DC.) Feráková |
9 |
| Lactuca quercina subsp. wilhelmsiana (DC.) Ferakova |
Synonym of Lactuca quercina subsp. wilhelmsiana (DC.) Feráková |
9 |
| Lactuca quercina subsp. wilhelmsiana (F. ＆. M.) Ferakova |
Synonym of Lactuca quercina subsp. wilhelmsiana (DC.) Feráková |
9 |
| Lactuca wilhelmsiana Fisch. & Mey. ex DC. |
Synonym of Lactuca quercina subsp. wilhelmsiana (DC.) Feráková |
9 |
| Cicerbita racemosa (Willd.) Beauverd |
Synonym of Lactuca racemosa Willd. |
8 |
| Lactuca elata Hemsl. ex Hemsl. |
Synonym of Lactuca raddeana Maxim. |
9 |
| Lactuca raddeana |
Synonym of Lactuca raddeana Maxim. |
9 |
| Lactuca raddeana var. elata (Hemsl.) Kitam. |
Synonym of Lactuca raddeana Maxim. |
9 |
| Pterocypsela elata (Hemsl.) C. Shih |
Synonym of Lactuca raddeana Maxim. |
9 |
| Pterocypsela raddeana (Maxim.) C. Shih |
Synonym of Lactuca raddeana Maxim. |
9 |
| Lactuca dregeana DC. |
Synonym of Lactuca sativa L. |
9 |
| Lactuca laciniata Roth |
Synonym of Lactuca sativa L. |
9 |
| Lactuca sativa subsp. longifolia (Lam.) Alef. |
Synonym of Lactuca sativa L. |
9 |
| Lactuca sativa subsp. sativa |
Synonym of Lactuca sativa L. |
9 |
| Lactuca sativa var. sativa |
Synonym of Lactuca sativa L. |
9 |
| Lactuca altaica Fisch. & C. A. Mey. |
Synonym of Lactuca serriola L. |
9 |
| Lactuca altaica Fisch. & C. A. Mey. |
Synonym of Lactuca serriola L. |
9 |
| Lactuca scariola L. |
Synonym of Lactuca serriola L. |
9 |
| Lactuca scariola var. integrifolia (Bogenh.) G. Beck |
Synonym of Lactuca serriola L. |
9 |
| Lactuca serriola |
Synonym of Lactuca serriola L. |
9 |
| Lactuca serriola None |
Synonym of Lactuca serriola L. |
9 |
| Lactuca serriola subsp. serriola |
Synonym of Lactuca serriola L. |
9 |
| Lactuca serriola var. serriola |
Synonym of Lactuca serriola L. |
9 |
| Lactuca serriola f. integrifolia None |
Synonym of Lactuca serriola f. integrifolia (Gray) S. D. Prince & R. N. Carter |
9 |
| Mulgedium sibiricum (L.) Cass. ex Less. |
Synonym of Lactuca sibirica (L.) Benth. ex Maxim. |
9 |
| Lactuca perennis subsp. granatensis Charpin & F. Casas |
Synonym of Lactuca singularis Wilmott |
9 |
| Cephalorrhynchus takhtadzhianii (Sosn.) Kirp. |
Synonym of Lactuca takhtadzhianii Sosn. |
9 |
| Lactuca pulchella (Pursh) DC. |
Synonym of Lactuca tatarica (L.) C. A. Mey. |
9 |
| Lactuca tatarica subsp. pulchella (Pursh) Stebbins |
Synonym of Lactuca tatarica (L.) C. A. Mey. |
9 |
| Mulgedium pulchellum (Pursh) G. Don |
Synonym of Lactuca tatarica (L.) C. A. Mey. |
9 |
| Mulgedium tataricum (L.) DC. |
Synonym of Lactuca tatarica (L.) C. A. Mey. |
9 |
| Pterocypsela triangulata (Maxim.) C. Shih |
Synonym of Lactuca triangulata Maxim. |
9 |
| Steptorhamphus petraeus Grossh. |
Synonym of Lactuca tuberosa Jacq. |
8 |
| Steptorhamphus tuberosus (Jacq.) Grossh. |
Synonym of Lactuca tuberosa Jacq. |
8 |
| Lactuca viminea |
Synonym of Lactuca viminea (L.) J. Presl & C. Presl |
9 |
| Lactuca viminea (L.) J. E. C. Presl |
Synonym of Lactuca viminea (L.) J. Presl & C. Presl |
9 |
| Lactuca viminea subsp. viminea |
Synonym of Lactuca viminea (L.) J. Presl & C. Presl |
9 |
| Scariola viminea (L.) F. W. Schmidt |
Synonym of Lactuca viminea (L.) J. Presl & C. Presl |
9 |
| Lactuca chondrilliflora Boreau |
Synonym of Lactuca viminea subsp. chondrilliflora (Boreau) S. -Lag. |
9 |
| Lactuca ramosissima (All.) Boreau |
Synonym of Lactuca viminea subsp. ramosissima (All.) Arcang. |
9 |
| Lactuca virosa var. virosa |
Synonym of Lactuca virosa L. |
9 |
| Lactuca virosa var. virosa |
Synonym of Lactuca virosa L. |
9 |
| Lactuca livida Boiss. & Reut. |
Synonym of Lactuca virosa subsp. livida (Boiss. & Reut.) Ladero & A. Velasco |
9 |
| Lactuca intybacea Jacq. ex Murray |
Synonym of Launaea intybacea (Jacq.) Beauverd |
9 |
| Lactuca remotiflora DC. |
Synonym of Launaea intybacea (Jacq.) Beauverd |
9 |
| Lactuca runcinata DC. ex Wight |
Synonym of Launaea intybacea (Jacq.) Beauverd |
9 |
| Lactuca sororia Miq. |
Synonym of Paraprenanthes sororia (Miq.) C. Shih |
9 |
| Pterocypsela indica (L.) C. Shih |
Synonym of Lactuca indica L. |
9 |