| Asteraceae | |
Sonchus acaulis
| Dum. Cours. | Bot. Cult. (ed. 2) 4: 12 | 1811 |
| Asteraceae | |
Sonchus acidus
| Schousb. ex Willd. | Sp. Pl. 3(3): 1511 | 1803 |
| Asteraceae | |
Sonchus acuminatus
| Willd. | Sp. Pl. 3(3): 1521 | 1803 |
| Asteraceae | |
Sonchus afromontanus
| R.E. Fr. | Acta Horti Berg. 8: 103 | 1924 |
| Asteraceae | |
Sonchus agrestis
| Sw. | Prodr. 110 | 1788 |
| Asteraceae | |
Sonchus albanus
| Steven | Mém. Soc. Imp. Naturalistes Moscou 4: 59 | 1913 |
| Asteraceae | |
Sonchus alpinus
| L. | Sp. Pl. 2: 794 | 1753 |
| Asteraceae | |
Sonchus angustissimus
| Hook. f. | J. Linn. Soc., Bot. 7: 203 | 1864 |
| Asteraceae | |
Sonchus aquatilis
| Pourr. | Mém. Acad. Sci. Toulouse 3: 330 | 1788 |
| Asteraceae | |
Sonchus araraticus
| Nazarova & Barsegyan | Bot. Zhurn. (Moscow & Leningrad) 68(7): 950 | 1983 |
| Asteraceae | |
Sonchus arboreus
| (Willd.) DC. | Prodr. 7(1): 189 | 1838 |
| Asteraceae | |
Sonchus arenicola
| Vorosch. | Bull. Princ. Bot. Gard. Acad. Sci. URSS no. 60: 43 | 1965 |
| Asteraceae | |
Sonchus arvensis
| L. | Sp. Pl. 2: 793 | 1753 |
| Asteraceae | ! |
Sonchus asper
| (L.) Hill | Herb. Brit. 1: 47 | 1769 |
| Asteraceae | * |
Sonchus asper
| (L.) Vill. | Fl. Delph. 3: 158 | 1789 |
| Asteraceae | |
Sonchus azureus
| Ledeb. | Fl. Altaic. 4: 138–140 | 1883 |
| Asteraceae | |
Sonchus bequaertii
| De Wild. | Pl. Bequaert. 5: 461 | 1932 |
| Asteraceae | |
Sonchus berteroanus
| (Decne.) S.C. Kim & Mejias | Ann. Bot. Fenn. 49(3): 175 | 2012 |
| Asteraceae | |
Sonchus biennis
| Moench | Methodus 545 | 1794 |
| Asteraceae | * |
Sonchus bipontini
| A. Chev. | Explor. Bot. Afrique Occ. Franç. 379 | 1920 |
| Asteraceae | |
Sonchus bipontini
| Asch. | Beitr. Fl. Aethiop. 160 | 1867 |
| Asteraceae | ! |
Sonchus brachyotus
| DC. | Prodr. 7(1): 186 | 1838 |
| Asteraceae | |
Sonchus brasiliensis
| Meyen & Walp. | Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(Suppl. 1): 293 | 1843 |
| Asteraceae | |
Sonchus brassicifolius
| S.C. Kim & Mejias | Ann. Bot. Fenn. 49(3): 175 | 2012 |
| Asteraceae | |
Sonchus brunneri
| (Webb) Oliv. & Hiern | Fl. Trop. Afr. 3: 459 | 1877 |
| Asteraceae | |
Sonchus bulbosus
| (L.) N. Kilian & Greuter | Willdenowia 33(2): 237 | |
| Asteraceae | |
Sonchus bupleurifolius
| Boiss. & Kotschy | Fl. Orient. [Boiss.] 3: 797–798 | 1875 |
| Asteraceae | |
Sonchus cacaliifolius
| M. Bieb. | Fl. Taur.-Caucas. 2: 241 | 1808 |
| Asteraceae | |
Sonchus camporum
| (R.E. Fr.) L. Boulos ex C. Jeffrey | Kew Bull. 18(3): 478 | 1966 |
| Asteraceae | |
Sonchus canadensis
| L. | Sp. Pl. 2: 793 | 1753 |
| Asteraceae | |
Sonchus capensis
| Schltdl. | Index Seminum (Halle) 7 | 1850 |
| Asteraceae | |
Sonchus capillaris
| Svent. | Addit. Fl. Canariensem 1: 85 | 1960 |
| Asteraceae | |
Sonchus capitatus
| Spreng. | Syst. Veg. [Sprengel] 3: 650 | 1826 |
| Asteraceae | |
Sonchus carolinianus
| Walter | Fl. Carol. 192 | 1788 |
| Asteraceae | |
Sonchus cassianus
| Jaub. & Spach | Ill. Pl. Orient. 3(28): 112, t. 280 | 1848 |
| Asteraceae | |
Sonchus caucasicus
| Beihl. | Pl. Nov. Herb. Spreng. Cent. 12 | 1807 |
| Asteraceae | |
Sonchus cavaleriei
| H. Lév. | Repert. Spec. Nov. Regni Veg. 8(185–187): 451 | 1910 |
| Asteraceae | |
Sonchus chevalieri
| (O. Hoffm. & Muschl.) Dandy | Fl. Pl. Anglo-Egyptian Sudan 3: 51 | 1956 |
| Asteraceae | |
Sonchus chinensis
| Fisch. | Hort. Gorenk. 33 | 1812 |
| Asteraceae | |
Sonchus ciliatus
| Lam. | Fl. Franç. 2: 87 | 1778 [1779] |
| Asteraceae | |
Sonchus congestus
| Willd. | Mag. Neuesten Entdeck. Gesammten Naturk. Ges. Naturf. Freunde Berlin 1: 136 | 1807 |
| Asteraceae | |
Sonchus cornutus
| Hochst. ex Oliv. & Hiern | Fl. Trop. Afr. 3: 459 | 1877 |
| Asteraceae | |
Sonchus crassifolius
| Pourr. ex Willd. | Sp. Pl. 3(3): 1509 | 1803 |
| Asteraceae | |
Sonchus cubanguensis
| S. Moore | J. Bot. 65, Suppl. 2: 67 | 1927 |
| Asteraceae | |
Sonchus cyaneus
| D. Don | Prodr. Fl. Nepal. 164 | 1825 |
| Asteraceae | |
Sonchus daltonii
| Webb | Niger Fl. 144, pl. 15 | 1849 |
| Asteraceae | |
Sonchus dentatus
| Ledeb. | Icon. Pl. [Ledebour] 1: 21 | 1829 |
| Asteraceae | * |
Sonchus dianthoseris
| Chiov. | Annuario Reale Ist. Bot. Roma 8(2): 200 | 1904 |
| Asteraceae | |
Sonchus dregeanus
| DC. | Prodr. 7: 184 | 1838 |
| Asteraceae | |
Sonchus ecklonianus
| DC. | Prodr. 7(1): 184 | 1838 |
| Asteraceae | |
Sonchus elliotianus
| Hiern | Cat. Afr. Pl. 1: 623 | 1898 |
| Asteraceae | |
Sonchus erythropappus
| Meyen & Walp. | Nova Acta Acad. Caes. Leop.-Carol. German. Nat. Cur. 19(suppl. 1): 293 | 1843 |
| Asteraceae | |
Sonchus exauriculatus
| (Oliv. & Hiern) O. Hoffm. | Pflanzenw. Ost-Afrikas C: 421 | 1895 |
| Asteraceae | |
Sonchus fauriei
| H. Lév. & Vaniot | Repert. Spec. Nov. Regni Veg. 7(137–139): 102 | 1909 |
| Asteraceae | |
Sonchus fischeri
| O. Hoffm. | Pflanzenw. Ost-Afrikas C: 421 | 1895 |
| Asteraceae | |
Sonchus flexuosus
| Ledeb. | Ind. Pl. Hort. Dorpat. Suppl. 5 | 1811 |
| Asteraceae | |
Sonchus floridanus
| L. | Sp. Pl. 2: 794–795 | 1753 |
| Asteraceae | |
Sonchus freynianus
| Huter, Porta, & Rigo ex Huter | Oesterr. Bot. Z. 57: 114 | 1907 |
| Asteraceae | |
Sonchus friesii
| Boulos | Bot. Not. 120: 456 | 1967 |
| Asteraceae | |
Sonchus fruticosus
| L. f. | Suppl. Pl. 346 | 1781 [1782] |
| Asteraceae | |
Sonchus giganteus
| Shuttlew. ex Rouy | Fl. France 9: 203 | 1905 |
| Asteraceae | |
Sonchus gigas
| Boulos | Bot. Not. 112: 365 | 1959 |
| Asteraceae | |
Sonchus glaucescens
| Jord. | Observ. Pl. Nouv. 5: 75, pl. 5 | 1847 |
| Asteraceae | |
Sonchus goraeensis
| Lam. | Encycl. 3: 397 | 1791 |
| Asteraceae | |
Sonchus gracilis
| Phil. | Anales Univ. Chile 87: 325 | 1894 |
| Asteraceae | |
Sonchus grandifolius
| T.Kirk | Trans. & Proc. New Zealand Inst. 5: 26 | 1894 |
| Asteraceae | |
Sonchus gummifer
| Link | Phys. Beschr. Canar. Ins. 145 | 1825 |
| Asteraceae | |
Sonchus hastatus
| Less. | Linnaea 6(1): 99 | 1831 |
| Asteraceae | |
Sonchus hierrensis
| (Pit.) Boulos | Nytt Mag. Bot. 14(1): 10 | 1967 |
| Asteraceae | |
Sonchus hispidus
| Gilib. | Fl. Lit. Inch. 1: 241 | 1781 |
| Asteraceae | |
Sonchus humilis
| Orlova | Novosti Sist. Vyssh. Rast. 344 | 1964 |
| Asteraceae | |
Sonchus hypochaeroides
| Schltdl. | Index Seminum (Halle) 7 | 1850 |
| Asteraceae | ** |
Sonchus infestus
| Poepp. ex DC. | Prodr. 7(1): 185 | 1838 |
| Asteraceae | |
Sonchus integrifolius
| Harv. | Fl. Cap. 3: 528 | 1865 |
| Asteraceae | |
Sonchus intermedius
| Jan ex DC. | Prodr. 7(1): 182 | 1838 |
| Asteraceae | |
Sonchus jacottetianus
| Thell. | Vierteljahrsschr. Naturf. Ges. Zürich 71: 156 | 1926 |
| Asteraceae | |
Sonchus jacquinii
| DC. | Cat. Pl. Horti Monsp. 147 | 1813 |
| Asteraceae | |
Sonchus jainii
| Chandrab. | J. Bombay Nat. Hist. Soc. 81: 149-151, f. 1-17. | 1984 |
| Asteraceae | |
Sonchus javanicus
| (Burm. f.) Spreng. | Syst. Veg. [Sprengel] 3: 648 | 1826 |
| Asteraceae | |
Sonchus kabarensis
| De Wild. | Pl. Bequaert. 5: 463 | 1932 |
| Asteraceae | |
Sonchus kirkii
| Hamlin | New Zealand J. Bot. 14(3): 279 | 1967 |
| Asteraceae | |
Sonchus laceratus
| (Phil.) S.C. Kim & Mejias | Ann. Bot. Fenn. 49(3): 176 | 2012 |
| Asteraceae | |
Sonchus lacerus
| Willd. | Sp. Pl. 3(3): 1513 | 1803 |
| Asteraceae | |
Sonchus lachnocephalus
| Rech. f. | Biol. Skr. 8(2): 202 | 1955 |
| Asteraceae | |
Sonchus lactucoides
| Bunge | Enum. Pl. China Bor. 40 | 1833 |
| Asteraceae | * |
Sonchus lactucoides
| Sch. Bip. ex A. Rich. | Tent. Fl. Abyss. 1: 467 | 1848 |
| Asteraceae | |
Sonchus laevigatus
| Willd. | Enum. Pl. (Suppl.) 54 | 1814 |
| Asteraceae | |
Sonchus lakouensis
| S.Y. Hu | Quart. J. Taiwan Mus. 21: 164 | 1968 |
| Asteraceae | |
Sonchus lanifer
| Dinter | Repert. Spec. Nov. Regni Veg. 30: 91 | 1932 |
| Asteraceae | |
Sonchus lasiorhizus
| O. Hoffm. | Bot. Jahrb. Syst. 30: 444 | 1901 |
| Asteraceae | |
Sonchus ledermannii
| R.E. Fr. | Acta Horti Berg. 8: 118 | 1925 |
| Asteraceae | |
Sonchus leptocephalus
| Cass. | Dict. Sci. Nat. (ed. 2) 43: 281 | 1826 |
| Asteraceae | * |
Sonchus leucophaeus
| Willd. | Sp. Pl. 3(3): 1520 | 1803 |
| Asteraceae | |
Sonchus lingianus
| C. Shih | Acta Phytotax. Sin. 29(6): 553–554, pl. 1 | 1991 |
| Asteraceae | |
Sonchus littoralis
| (Kirk) Cockayne | Rep. Bot. Surv. Kapiti Isl. 21 | 1907 |
| Asteraceae | |
Sonchus lobatiflorus
| S.C. Kim & Mejias | Ann. Bot. Fenn. 49(3): 175 | 2012 |
| Asteraceae | |
Sonchus longifolius
| Colla | Herb. Pedem. iii: 530 | 1834 |
| Asteraceae | |
Sonchus ludovicianus
| Nutt. | Gen. N. Amer. Pl. 2: 125 | 1818 |
| Asteraceae | |
Sonchus luxurians
| (R.E. Fr.) C. Jeffrey | Kew Bull. 18: 480 | 1966 |
| Asteraceae | |
Sonchus lyratus
| Willd. | Enum. Pl. 53 | 1814 |