WFO Plant List | World Flora Online

As classified in WFO snapshot

June 2025

latest classification for this taxon

genus

Lactuca L.

This genus name was first published in Sp. Pl.: 795. 1753

At the time of this classification snapshot, this genus name was accepted by WFO (placed as the accepted name of a taxon). Its description and other taxonomic data can be found on World Flora Online, id: wfo-4000020393.

Literature

Sp. Pl. 2: 795. 1753 [1 May 1753]

Statistics

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Species names in Lactuca (${formatNumber(totalForStatsWithKey('species'))})

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Synonyms of Lactuca

Name	Author	Protologue	Nomenclator	WFO link
Lactuca sect. Pterachenium	Kitam.	Acta Phytotax. Geobot. 6(3): 237 (1937)		wfo-1000043938
Cicerbita sect. Mulgedium	(Cass.) Beauverd	in Bull. Soc. Bot. Genève 2: 116. 1910	—	wfo-1000044101
Cicerbita sect. Platyachena	Kirp.	in Komarov, Fl. URSS 29: 726. 1964		wfo-1000045089
Cicerbita sect. Lactucopsis	(Sch.Bip.) Beauverd	in Bull. Soc. Bot. Genève 2: 116. 1910	—	wfo-1000057219
Lactuca sect. Alpinae	Boiss.	Fl. Orient. 3: 804. 1875	—	wfo-1000057228
Lactuca sect. Heterorhynchae	Bisch.	Beitr. Fl. Deutschl.: 178. 1851	—	wfo-1000057231
Lactuca sect. Homoeorhynchae	Bisch.	Beitr. Fl. Deutschl.: 178, 199. 1851	—	wfo-1000057232
Lactuca sect. Lactucopsis	(Sch.Bip.) Rouy	Fl. France 9: 193. 1905	—	wfo-1000057233
Lactuca sect. Micranthae	Boiss.	Fl. Orient. 3: 804. 1875	—	wfo-1000057234
Lactuca sect. Mulgedioideae	Boiss.	Fl. Orient. 3: 804. 1875	—	wfo-1000057235
Lactuca sect. Mulgedium	(Cass.) C.B.Clarke	Compos. Ind.: 260. 1876	—	wfo-1000057236
Lactuca sect. Phaenixopus	(Cass.) Benth. & Hook.f.	Gen. Pl. 2: 525. 1873	—	wfo-1000057238
Lactuca sect. Pterachaenium	Kitam.	in Acta Phytotax. Geobot. 6: 237. 1937	—	wfo-1000057240
Lactuca sect. Quinqueflorae	Boiss.	Fl. Orient. 3: 805. 1875	—	wfo-1000057241
Lactuca sect. Tuberosae	Boiss.	Fl. Orient. 3: 804. 1875	—	wfo-1000057243
Mulgedium sect. Eumulgedium	DC.	Prodr. 7: 248. 1838	—	wfo-1000057251
Mulgedium sect. Lactucopsis	(Sch.Bip.) Boiss.	Fl. Orient. 3: 799. 1875	—	wfo-1000057252
Steptorhamphus sect. Tuberosae	(Boiss.) Kirp.	in Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk SSSR 23: 318. 1963	—	wfo-1000057258
Cicerbita subg. Platyachena	Kirp.	in Komarov, Fl. URSS 29: 726. 1964	—	wfo-1000057260
Lactucopsis sect. Mulgediopsis	Sch.Bip.	in Mem. Reale Ist. Veneto Sci. 15: 8. 1870	—	wfo-1000078827
Lactucopsis sect. Prenanthopsis	Sch.Bip.	in Mem. Reale Ist. Veneto Sci. 15: 6. 1870	—	wfo-1000078828
Lactuca sect. Scariola	DC.	Prodr. 7: 133. 1838	—	wfo-1200027483
Lactuca subg. Cyanoseris	(W.D.J.Koch) Peterm.	Deutschl. Fl.: 340. 1846–1849	—	wfo-1200069181
Lactuca subg. Lactucopsis	(Sch.Bip.) Babc., Stebbins & J.A.Jenkins	in Cytologia, Fujii Jubil. Vol.: 191. 1937	—	wfo-1200069182
Lactuca subg. Mulgedium	(Cass.) Babc., Stebbins & J.A.Jenkins	in Cytologia Fujii Jubil. Vol: 190. 1937	—	wfo-1200069183
Lactuca subg. Phaenixopus	(Benth. & Hook.f.) Babc., Stebbins & J.A.Jenkins	Cytologia, Fujii Jubil. Vol.: 191. 1937, design. inval	—	wfo-1200069185
Lactuca subg. Pterachaenium	(Kitam.) Kirp.	in Komarov, Fl. URSS 29: 291. 1964	—	wfo-1200069186
Lactuca subg. Scariola	Peterm.	Deutschl. Fl.: 339. 1846–1849	—	wfo-1200069187
Cicerbita ser. Macrophyllae	Gagnidze	in Soobshch. Akad. Nauk Gruzinsk. S.S.R. 66(1): 150. 1972		wfo-2800000949
Cicerbita ser. Racemosae	Gagnidze	in Soobshch. Akad. Nauk Gruzinsk. S.S.R. 66(1): 151. 1972		wfo-2800000950
Lactuca sect. Cyanoseris	W.D.J.Koch	Syn. Fl. Germ. Helv., ed. 2: 496. 1844		wfo-3400005148
Mycelis sect. Multicostaria	(Kirp.) Sennikov	in Bot. Zhurn. 82(2): 111. 1997		wfo-3400010103
Mulgedium sect. Lagedium	(Soják) Sennikov	in Bot. Zhurn. 82(5): 116. 1997		wfo-3400010112
Cicerbita sect. Multicostaria	Kirp.	in Komarov, Fl. URSS 29: 726. 1964		wfo-3400011770
Lactuca subg. Pterachenium	(Kitam.) Kirp.	Fl. URSS 29: 291. 1964		wfo-3500000316
Bunioseris	Jord.	Jord. & Fourr. Ic. Fl. Eur. 3: 44. 1903		wfo-4000005754
Cyanoseris	Schur	in Verh. Mitth. Siebenbürg. Vereins Naturwiss. Hermannstadt 4: 43. 1853		wfo-4000010163
Eunoxis	Raf.	New Fl. iv. 84 (1836)		wfo-4000014193
Galathenium	Nutt.	in Trans. Amer. Philos. Soc., ser. 2, 7: 442. 1841		wfo-4000015198
Lactucella	Nazarova	in Biol. Zhurn. Armenii 43: 181. 1990		wfo-4000020394
Lactucopsis	Sch.Bip.	in Mem. Reale Ist. Veneto Sci. 15: 5. 1870		wfo-4000020395
Lagedium	Soják	in Novit. Bot. Delect. Seminum Horti Bot. Univ. Carol. Prag. 1961: 34. 1961		wfo-4000020425
Mulgedium	Cass.	in Cuvier, Dict. Sci. Nat. 33: 296. 1824		wfo-4000024963
Phaenixopus	Cass.	in Cuvier, Dict. Sci. Nat. 39: 391. 1826		wfo-4000029042
Phaenopus	DC.	Prodr. 7: 176. 1838		wfo-4000029046
Pterocypsela	C.Shih	in Acta Phytotax. Sin. 26: 385. 1988		wfo-4000031961
Scariola	F.W.Schmidt	in Samml. Phys.-Ökon. Aufsätze 1: 270. 1795		wfo-4000034259
Wiestia	Sch.Bip.	in Jahrb. Pract. Pharm. Verwandte Fächer 4: 154. 1841		wfo-4000040695
Garacium	Gren. & Godr.	Fl. France 2: 327, in syn. (1850)		wfo-4000046573
Agathyrus	Raf.	New Fl. [Rafinesque] 4: 84 (1836).		wfo-4100000132

Species in Lactuca ( ${pageIsLoading?'loading':'showing'} species ${currentlyShowingRangeFirst} to ${currentlyShowingRangeLast} of ${ totalPartsCount })

Name	Author	Protologue	Nomenclator	WFO link
			—	${taxonConcept.hasName.id}
			— —	${synonym.id}

Unplaced Names

These names are not yet placed in the taxonomy, but may be associated with Lactuca:

Name	Author	Protologue	Nomenclator	WFO link
Lactuca acanthifolia	Benth. & Hook.f.	Gen. Pl. [Bentham & Hooker f.] 2(1): 525. 1873 [7-9 Apr 1873]		wfo-0000127617
Lactuca acaulis	(Roxb.) Babe.	–	—	wfo-0000055968
Lactuca acuminata	(Willd.) Spreng.	Syst. Veg. 3: 659 (1826)		wfo-0000010135
Lactuca agrestis	Bubani	Fl. Pyren. ii. 113 (1899)		wfo-0000020222
Lactuca alabamensis	Bertol.	in Novi Comment. Acad. Sci. Inst. Bononiensis 7: 200. 1844		wfo-0000123628
Lactuca albiflora	Maxim.	Bull. Acad. Imp. Sci. Saint-Pétersbourg xix. (1874) 531.		wfo-0000085918
Lactuca amagawaensis	Makino	Bot. Mag. (Tokyo) 6: 56 (1892)		wfo-0000043260
Lactuca ambigua	Hort. ex G.Don	Hort. Brit. [Sweet], ed. 3. 410. 1839		wfo-0000064286
Lactuca amurensis	Herder	Fl. Radd. 3(4): 29.		wfo-0000129769
Lactuca angulata	Raf.	New Fl. iv. 83 (Quid ?).		wfo-0000136245
Lactuca angustifolia	Lam. ex Steud.	Nomencl. Bot. : 460 (1821)		wfo-0000021229
Lactuca armena	Boiss.	Fl. Orient. 3: 808 (1875)		wfo-0000056719
Lactuca atlantica	Pomel	Nouv. Mat. Fl. Atl. : 265 (1875)		wfo-0000025294
Lactuca augustana	Rchb. ex Nyman	Consp. Fl. Eur. 2: 435 (1879)		wfo-0000038485
Lactuca auriculata	Aitch.	J. Linn. Soc., Bot. 19: 173 (1882)		wfo-0000002967
Lactuca autumnalis	Bernh.	Syst. Verz. : 140 (1800)		wfo-0000078062
Lactuca axillaris	Raf.	New Fl. iv. 83 (Quid ?).		wfo-0000118418
Lactuca balmesi	Sennen	Bol. Soc. Ibér. Ci. Nat. 28(5-8): 116 (1930)		wfo-0000125722
Lactuca bandyopadhyana	Kottaim.	Int. J. Curr. Res. Biosci. Pl. Biol. 6(10): 37. 2019		wfo-1000032949
Lactuca bauhini	Loret	Loret & Barrandon, Fl. Montpellier, ed. 2 620. 1886		wfo-0000111751
Lactuca biennis f. aurea	(Jenn.) Fernald	Rhodora 42: 302 (1940)		wfo-0001320408
Lactuca bracteata	Wall.	Numer. List : n.° 3243 (1831)		wfo-0000041604
Lactuca brevirostra	Dulac	Fl. Hautes-Pyrénées : 494 (1867)		wfo-0000000582
Lactuca callosa	(Klatt) C.C.Chang	Contrib. Biol. Lab. Sc. Soc. China, Bot. Ser. 9: 127. 1934		wfo-0000034576
Lactuca canadensis	(L.) Farw.	Asa Gray Bull. 3: 22 (1895)		wfo-0000071052
Lactuca canadensis	A.Gray	Man. Bot. N. U. St. 803.		wfo-0000085533
Lactuca canadensis f. albocaerulea	(Farw.) Farw.	Pap. Michigan Acad. Sci. 2: 45 (1923)		wfo-0001321593
Lactuca canadensis f. angustata	Wiegand	Rhodora 22: 11 (1920)		wfo-0001321589
Lactuca canadensis f. angustipes	Farw.	Pap. Michigan Acad. Sci. 3: 108. 1924		wfo-0001403046
Lactuca canadensis f. angustipes	Wiegand	Rhodora 22: 10. 1920		wfo-0001403045
Lactuca canadensis f. exauriculata	Wiegand	Rhodora 22: 11 (1920)		wfo-0001321590
Lactuca canadensis f. pallida	Farw.	Pap. Michigan Acad. Sci. 3: 109 (1924)		wfo-0001321591
Lactuca canadensis f. steelei	(Britton) Fernald	Rhodora 40: 481 (1938)		wfo-0001321586
Lactuca canadensis f. stenopoda	Wiegand	Rhodora 22: 11 (1920)		wfo-0001321587
Lactuca canadensis f. villicaulis	Fernald	Rhodora 41: 574 (1939)		wfo-0001321592
Lactuca canadensis var. angustifolia	Kuntze	Revis. Gen. Pl. 1: 349 (1891)		wfo-0001372768
Lactuca canadensis var. elongata	Farw.	Pap. Michigan Acad. Sci. 2: 46 (1923)		wfo-0001372769
Lactuca canadensis var. laciniata	Farw.	Pap. Michigan Acad. Sci. 2: 45 (1923)		wfo-0001372771
Lactuca canadensis var. montana	Britton	Ill. Fl. N. U.S. 3: 274 (1898)		wfo-0001372772
Lactuca candolleana	Holmboe	Stud. Veg. Cyprus : 194 (1914)		wfo-0000080213
Lactuca canescens	Regel & Schmalh.	Trudy Imp. S.-Peterburgsk. Bot. Sada vi. (1879) 324.		wfo-0000124253
Lactuca capillaris	(Nakai) Makino & Nemoto	Fl. Japan., ed. 2 (Makino & Nemoto) 1241. 1931		wfo-0000067773
Lactuca caroliniana	Walter	Fl. Carol. : 193 (1788)		wfo-0000062133
Lactuca cernua	Jacquem. ex Decne.	Voy. Inde 4(Bot.): 100 (Apr 1835- Dec 1844)		wfo-0000036123
Lactuca chaffanjonii	(Beauverd) Danguy	in Bull. Mus. Natl. Hist. Nat. 20: 39. 1914		wfo-0000005454
Lactuca chinensis	(Thunb.) Makino	Bot. Mag. (Tokyo) 17: 89 (1903)		wfo-0000074485
Lactuca chinensis	Tanaka	Bult. Sci. Fak. Terk. Kjusu Imp. Univ. i. 205, 209 (1925)		wfo-0000042612
Lactuca chondrilliflora subsp. chondrilliflora	–	–	—	wfo-0000049579
Lactuca chondrilloides	Steud.	Nomencl. Bot. 2: 3 (1840)		wfo-0000022713
Lactuca contracta	Velen ex Nyman	Consp. Fl. Eur. Suppl. 2(1): 189. 1889 ; Bornm. in Bot. Centralbl. xxxvi. (1888)89	—	wfo-0000118898
Lactuca cornigera	Pau & Font Quer	in Font Quer, Iter Marocc. 1929: No. 476. 1930		wfo-0000093721
Lactuca cracoviensis	bueck ex Nyman	Consp. Fl. Eur. 2: 435 (1879)		wfo-0000052733
Lactuca crambifolia	B.Fedtsch.	Rastit. Turkest. 765 (1915).		wfo-0000125489
Lactuca crassicaulis	(Trautv.)	–	—	wfo-1000056224
Lactuca crassicaulis	Sennikov	Checkl. Vasc. Pl. Tian-Shan 400 2021		wfo-1000057208
Lactuca debilis	Benth. & Hook.f.	Gen. Pl. 2(1): 526 (1873)		wfo-0000034445
Lactuca decipiens var. decipiens	–	–	—	wfo-0000055036
Lactuca denticulatoplatyphylla	Makino	J. Jap. Bot. i. 11 (1917).		wfo-0000106934
Lactuca depressa	(Hook.f. & Thomson) Babc. & Cameron	Univ. Calif. Publ. Agric. Sci. 6: 289 (1934)		wfo-0000134187
Lactuca elongata var. albiflora	Torr. & A.Gray	Fl. N. Amer. (Torr. & A. Gray) 2: 497 (1843)		wfo-0001372774
Lactuca elongata var. graminifolia	Chapm.	Fl. South. U.S. : 252 (1860)		wfo-0001372775
Lactuca esculenta	Salisb.	Prodr. Stirp. Chap. Allerton : 180 (1796)		wfo-0000122958
Lactuca fistulosa	Raf.	Fl. Ludov. : 58 (1817)		wfo-0000029534
Lactuca floridana f. leucantha	Fernald	Rhodora 42: 498 (1940)		wfo-0001320409
Lactuca forsteniana	Boerl.	Handl. Fl. Ned. Ind. 2(1): 245, nomen. (1891)		wfo-0000044887
Lactuca glabra	Chang	in Contrib. Biol. Lab. Sc. Soc. China, Bot. Ser., ix. 128 (1934).	—	wfo-0000060994
Lactuca glareosa	Schott & Kotschy	Fl. Orient. 3: 812 (1875)		wfo-0000093440
Lactuca graciliflora	Forbes & Hemsl.	Journal of the Linnean Society, Botany 23: 482 1888	—	wfo-0000134940
Lactuca graminea	Spreng.	Syst. Veg. 3: 659 (1826)		wfo-0000074278
Lactuca graminifolia var. graminifolia	–	–	—	wfo-0000091399
Lactuca haimanniana	E.A.Durand & Barratte	–	—	wfo-1000050903
Lactuca hastata	L.	–	—	wfo-0000065452
Lactuca hastata var. khasiana	C.B.Clarke	Compos. Ind. : 268 (1876)		wfo-0001380090
Lactuca hastata var. paniculata	C.B.Clarke	Compos. Ind. (1876)		wfo-0001380089
Lactuca hirsuta f. calvifolia	Fernald	Rhodora 22: 156 (1920)		wfo-0001320410
Lactuca hirsuta f. indivisa	Fernald	Rhodora 43: 657 (1941)		wfo-0001321588
Lactuca hirsuta var. genuina	Fernald	Rhodora 40: 481 (1938)		wfo-0001372779
Lactuca hochstetteri	Sch.Bip. ex Engl.	Abh. Preuss. Akad. Wiss. 1891 (1892) 454.		wfo-0000093447
Lactuca humilis	Sch.Bip. ex A.Rich.	Tent. Fl. Abyss. 1: 463 (1848)		wfo-0000077429
Lactuca imbricata var. imbricata	–	–		wfo-0000096525
Lactuca impura	Maire	Bull. Soc. Hist. Nat. Afrique N. xxxi. 108 (1941).		wfo-0000137409
Lactuca integrifolia	B.L.Rob. & Fernald	Manual (Gray), ed. 7. 866. 1908		wfo-0000128683
Lactuca intybacea	Jacq. ex Murray	Icon. Pl. Rar. 1(4): pl. 162. 1784.	—	wfo-0000008040
Lactuca japonica	Regel	Index Seminum (LE, Petropolitanus) (1866) 91.		wfo-0000129518
Lactuca kanitziana	Martelli	Nuov. Giorn. Bot. xv. 302. 1883		wfo-0000120451
Lactuca kanitziana	Martelli ex Boerl.	Fl. Ned. Ind. ii. I. (1891) 245, nomen.		wfo-0000016919
Lactuca khasiana	Franch.	J. Bot. (Morot) ix. (1895) 292, in obs.		wfo-0000024287
Lactuca kimurana	Kitam.	cf. Bot. Mag., Tokyo 48; 6. 1934 , in syn., (japonice)		wfo-0000003554
Lactuca kossinskyi	Krasch.	Izv. Glavn. Bot. Sada S.S.S.R. 26: 115, in syn. (1927)		wfo-0000096044
Lactuca kotschyana	Reut.	Cat. Graines Jard. Bot. Genève 1867: 4 (1868)		wfo-0000078835
Lactuca kotschyi	Sch.Bip.	Linnaea 15: 725 (1842)		wfo-0000014052
Lactuca laevigata	Boiss.	Fl. Orient. [Boissier] Suppl. 322. 1888 [Oct 1888]		wfo-0000119387
Lactuca laevigata	C.B.Clarke	Compos. Ind. 269. 1876		wfo-0000007059
Lactuca laevigata	DC.	Prodr. 7(1): 140 (1838)		wfo-0000118130
Lactuca laevigata var. exciso-dentata	J.Kost.	Blumea 23(1): 174 (1976)		wfo-0000107432
Lactuca laevigata var. lamii	(Mattfield) J.Kost.	Blumea 23(1): 174 (1976)		wfo-0001386761
Lactuca laevigata var. pusilla	(Mattfield) J.Kost.	Blumea 23(1): 172 (1976)		wfo-0001386762
Lactuca longespicata	De Wild.	Ann. Mus. Congo Belge, Bot. , sér. 5, 1(2): 87 (1904)		wfo-0000003652
Lactuca longidentata	Moris	Pl. Sard. Elench. 2.		wfo-0000128949
Lactuca ludoviciana f. campestris	(Greene) Fernald	Rhodora 40: 481 (1938)		wfo-0001320411
Lactuca lutea	Dulac	Fl. Hautes-Pyrénées : 495 (1867)		wfo-0000019877
Lactuca macrophylla subsp. macrophylla	–	–	—	wfo-0000051384
Lactuca maculata	Hornem.	Hort. Bot. Hafn. : 755 (1815)		wfo-0000014367
Lactuca maritima	Raf.	New Fl. iv. 83.		wfo-0000124324
Lactuca massaviensis	Sch.Bip. ex A.Rich.	Tent. Fl. Abyss. 1: 460 (1848)		wfo-0000070148
Lactuca microcephala	(Nakai) Makino & Nemoto	Fl. Japan., ed. 2 (Makino & Nemoto) 1244. 1931		wfo-0000138797
Lactuca monocephala	Chang	in Contrib. Biol. Lab. Sc. Soc. China, Bot.Ser. ix. 132(1934).	—	wfo-0000072770
Lactuca mulsanti	Sennen & Elias	Bol. Soc. Ibér. Ci. Nat. 28(5-8): 115 (1930)		wfo-0000003118
Lactuca muralis	(L.) E.Mey.	Chloris Han. : 431 (1836)		wfo-0000065564
Lactuca muralis	(L.) Fresen.	Taschenb. Bot. Exkurs., ed. 2 484. 1833		wfo-0000013840
Lactuca musashensis	Makino ex Hisauti	J. Jap. Bot. 1935,.xi. 43, in syn.		wfo-0000001934
Lactuca nikoensis	(Nakai) Makino & Nemoto	Fl. Japan., ed. 2 (Makino & Nemoto) 1245. 1931		wfo-0000119456
Lactuca nipponica	(Nakai) Nakai ex Makino & Nemoto	Fl. Japan. (Makino & Nemoto) 75. 1925 ; et Fl. Japan. ed. 2, 1245 (1931)		wfo-0000115585
Lactuca nipponica	Nakai	Bot. Mag. (Tokyo) 34: 154, in syn. (1920)		wfo-0000016908
Lactuca nubica	Sch.Bip.	Linnaea 15: 725 (1842)		wfo-0000007317
Lactuca obtusa	C.B.Clarke	Compos. Ind. : 261 (1876)		wfo-0000013969
Lactuca octophylla	Sch.Bip.	Linnaea 15: 725 (1842)		wfo-0000088796
Lactuca officinarum	Crantz	Inst. Rei Herb. 1: 227 (1766)		wfo-0000039649
Lactuca oleracea	M.Gómez	Anales Soc. Esp. Hist. Nat. 19: 268 (1890)		wfo-0000081205
Lactuca oligocephala	Bornm	Mitth. Thüring. Bot. Vereins 6: 55. 1894		wfo-0000029685
Lactuca ovatifolia	Raf.	New Fl. iv. 83.		wfo-0000084335
Lactuca pakistanica	T.Akhtar & Chaudhri	Pakistan Syst. 3: 25 (1987)		wfo-0000088659
Lactuca papuana	Mattf.	Bot. Jahrb. Syst. 62(5): 449 (1929)		wfo-0000025340
Lactuca parishii	Craib ex Hosseus	Beih. Bot. Centralbl. 28(2): 453, 457 (1911)		wfo-0000114545
Lactuca petraea	Fisch. & C.A.Mey.	Prodr. 7(1): 134 (1838)		wfo-0000032911
Lactuca pilosa	Raf.	New Fl. iv. 83 (Quid ?).		wfo-0000132178
Lactuca plicata	Balb.	Cat. Pl. (Balbis) 45 (1813)		wfo-0000022855
Lactuca polycephala	(Cass. ex DC.) C.B.Clarke	Compos. Ind. 272. 1876		wfo-0000042971
Lactuca procera	Schrad. ex DC.	Prodr. 7(1): 137 (1838)		wfo-0000018936
Lactuca procumbens	Roxb.	Hort. Bengal. 60, nomen.		wfo-0000114740
Lactuca pseudoumbrella var. pseudoumbrella	–	–	—	wfo-0000050393
Lactuca pseudovirosa	Sch.Bip. ex Nyman	Consp. Fl. Eur. 2: 435 (1879)		wfo-0000093143
Lactuca pyrenaica	Bellardi ex Pasch.	in Colla, Herb. Pedem. 3: 542. 1834		wfo-0000016668
Lactuca querna	Pall.	Reise Südl. Statthaltersch. Russ. Reich. 1: 221. 1799 , (an L. quercina L.?)		wfo-0000011906
Lactuca raddeana var. aogashimaensis	(Kitam.) Katsuy.	Bull. Kanagawa Pref. Mus., Nat. Sci. 40: 32 (2011)		wfo-0001383962
Lactuca ramosissima	(All.) Gren. & Godr.	Fl. France 2: 318 (1850)		wfo-0000069396
Lactuca ramosissima	Benth. & Hook.f.	Gen. Pl. 2(1): 526 (1873)		wfo-0000020290
Lactuca repens	Benth. & Hook.f.	Gen. Pl. [Bentham & Hooker f.] 2(1): 526. 1873 [7-9 Apr 1873]		wfo-0000030956
Lactuca reviersiana	Litard. & Maire	Contrib. Etude Fl. Grand Atlas (Arch. Sc. Maroc), Fasc. 2: 4. 1930		wfo-0000040428
Lactuca rigida	DC.	Prodr. 7(1): 135 (1838)		wfo-0000027912
Lactuca rosea	(Popov & Vved.) Sennikov	Checkl. Vasc. Pl. Tian-Shan 401 2021		wfo-1000056908
Lactuca rostrata	(Blume) Kuntze	Revis. Gen. Pl. 1: 349 (1891)		wfo-0000019469
Lactuca rostrata	Benth. & Hook.f.	Gen. Pl. [Bentham & Hooker f.] 2(1): 525. 1873 [7-9 Apr 1873]		wfo-0000001964
Lactuca sagittata	Hook.f. & Thomson ex C.B.Clarke	Compos. Ind. 265. 1876		wfo-0000040729
Lactuca sagittata	Schur	Verh. Naturf. Vereins Brünn 36: 213. 1898		wfo-0000007178
Lactuca sarmentosa	Wight	Contr. Bot. India : 27 (1834)		wfo-0000001524
Lactuca sassandrensis	A.Chev.	Explor. Bot. Afrique Occ. Franc. 1: 378. 1920 , nomen		wfo-0000119585
Lactuca sativa subsp. serriola	(L.) Frietema	Cult. pl. & wild fl. 148. 1996		wfo-0001361829
Lactuca sativa subsp. serriola	(L.) Galasso, Banfi, Bartolucci & Ardenghi	Ital. Botanist 3: 35 (2017)	—	wfo-1200113014
Lactuca sativa var. yemensis	X.S.Shen & Run L.Lu	Bull. Bot. Res., Harbin 18(1): 32 (1998)		wfo-0001370264
Lactuca scandens	Chang	in Contrib. Biol. Lab. Sc. Soc. China, Bot. Ser., ix. 133 (1934).	—	wfo-0000043156
Lactuca scariosa var. nieuwlandii	Lunell	Amer. Midl. Naturalist 2: 171, 176 (1912)		wfo-0001379414
Lactuca sect. Lactuca	–	–	—	wfo-1000041367
Lactuca serriola var. integrata	Farw.	Amer. Midl. Naturalist 10: 46 (1926)		wfo-1200068496
Lactuca siamense	Kerr	–	—	wfo-0001259620
Lactuca sonchifolia	DC.	Prodr. [A. P. de Candolle] 7(1): 134. 1838 [late Apr 1838]		wfo-0000060030
Lactuca sonchifolia	Pančić	in Verh. Zool.-Bot. Ges. Wien. vi. (1856) 559.		wfo-0000134449
Lactuca sonchoides	Boiss. & Balansa ex Boiss.	Fl. Orient. 3: 816 (1875)		wfo-0000060123
Lactuca songmaoensis	S.S.Ying	New Taxa New Names 7: 557 (2024)		wfo-1000076562
Lactuca spicata var. aurea	Jenn.	Ann. Carnegie Mus. 13: 440, tab. 33 (1922)		wfo-0001372780
Lactuca squarrosa f. indivisa	(Makino) Honda	Nom. Pl. Japonic. 362, 509. 1939 [23 Jun 1939]		wfo-1200029807
Lactuca stanekii	Domin	Preslia xiii-xv. 251 (1935)		wfo-0000045994
Lactuca stanekii	Domin	Preslia xiii-xv. 251 (1935)		wfo-0000050333
Lactuca stelbinsiana	N.Kilian	–	—	wfo-0000119992
Lactuca sylvestris	Garsault	Fig. Pl. Med. 3: t. 316. 1764 , nom. inval., opus utique oppressum; Descr. Pl. Anim. 197. 1767; Thell. in Bull. Herb. Boiss. Ser. II. viii. 791		wfo-0000090239
Lactuca taraxacifolia	Schumach. & Thonn.	Beskr. Guin. Pl. 380. 1827		wfo-0000081798
Lactuca tatarinowii	Franch.	J. Bot. (Morot) ix. (1895) 293, in obs.		wfo-0000094109
Lactuca tenerrima	A.Chev.	Exploration Botanique de l'Afrique Occidentale Francaise ... 379 1920	—	wfo-0000010219
Lactuca thianschanica	(Regel & Schmalh.) Sennikov	Checkl. Vasc. Pl. Tian-Shan 401 2021		wfo-1000056914
Lactuca thunbergiana	Forbes & Hemsl.	J. Linn. Soc., Bot. 23: 484. 1886 [29 Dec 1886]		wfo-1000035919
Lactuca thunbergii var. atropurpurea	Nakai	Bot. Mag. (Tokyo) 42: 16 (1928)		wfo-0001381211
Lactuca triquetra	Benth. & Hook.f.	Gen. Pl. [Bentham & Hooker f.] 2(1): 525. 1873 [7-9 Apr 1873]		wfo-0000079719
Lactuca villosa	Britton, Sterns & Poggenb.	Prelim. Cat. (1888) 31. [25 Apr 1888]		wfo-0000045016
Lactuca viminea	C.B.Clarke	Compos. Ind. 262. 1876		wfo-0000115560
Lactuca viminea f. integrifolia	(Lamt.) V.Ferakova	Gen. Lactuca Eur. 46. 1977		wfo-0001322876
Lactuca viminea subsp. chondrilliflora	(Boreau) Malag.	Subesp. Variación Geogr. 16, without basionym date. 1973		wfo-0000110407
Lactuca viminea subsp. ramosissima	(All.) Arcang.	–	—	wfo-1200112234
Lactuca viminea var. contracta	(Vel.) V.Ferakova	Gen. Lactuca Eur. 43. 1977		wfo-0001386764
Lactuca virosa	Luce	Fl. Osil. 260.		wfo-0000019255
Lactuca virosa f. lactucarii	(Lamotte) P.D.Sell	Fl. Gr. Brit. Ireland 4: 532. 2006 isonym		wfo-0001325663
Lactuca virosa f. virosa	–	–	—	wfo-0000054691
Lactuca virosa subsp. cornigera	(Pau & Font Quer) Emb. & Maire	in Bull. Soc. Hist. Nat. Afrique N. 23: 198. 1932		wfo-0000077476