| Asteraceae | |
Aaronsohnia
| O. Warb. & A. Eig | Bull. Agric. Exp. Station Tel-Aviv 6: 39 | 1927 |
| Asteraceae | |
Abasoloa
| La Llave | Nov. Veg. Descr. 1: 11 | 1824 |
| Asteraceae | |
Abrotanella
| Cass. | Dict. Sci. Nat. (ed. 2) 36: 27 | 1825 |
| Asteraceae | |
Abrotanum
| Duhamel | Traité Arbr. Arbust. 1: 19 | 1755 |
| Asteraceae | |
Absinthium
| Mill. | Gard. Dict. Abr. (ed. 4) | 1754 |
| Asteraceae | |
Absynthium
| P. G. Gaertner & B. Meyer & Scherbius | Oekon.-Tech. Fl. Wetterau 3: 109, 196 | 1801 |
| Asteraceae | |
Acamptopappus
| (A. Gray) A. Gray | Proc. Amer. Acad. Arts 8: 634 | 1873 |
| Asteraceae | |
Acanos
| Adans. | Fam. Pl. 2: 116, 512 | 1763 |
| Asteraceae | |
Acanthambrosia
| Rydb. | N. Amer. Fl. 33(1): 22 | 1922 |
| Asteraceae | |
Acanthium
| Heist. ex Fabr. | Enum. 91 | 1759 |
| Asteraceae | |
Acanthocephalus
| Kar. & Kir. | Bull. Soc. Imp. Naturalistes Moscou 15: 127 | 1842 |
| Asteraceae | |
Acanthocladium
| F. Muell. | Fragm. 2: 155 | 1861 |
| Asteraceae | |
Acanthodesmos
| C.D. Adams & du Quesnay | Phytologia 21(6): 405 | 1971 |
| Asteraceae | |
Acantholepis
| Less. | Linnaea 6: 88 | 1831 |
| Asteraceae | * |
Acanthophyllum
| Hook. & Arn. | Companion Bot. Mag. 1: 37 | 1835 |
| Asteraceae | |
Acanthophyton
| Less. | Syn. Gen. Compos. 128 | 1832 |
| Asteraceae | |
Acanthosonchus
| Kirpicznikov | Fl. Turkmenii 7: 326 | 1960 |
| Asteraceae | !! |
Acanthospermum
| Schrank | Pl. Rar. Hort. Monac. 2(6): , pl. 53 | 1819 [1820] |
| Asteraceae | |
Acanthostyles
| R.M. King & H. Rob. | Phytologia 22: 111 | 1971 |
| Asteraceae | |
Acanthotheca
| DC. | Prodr. 6: 73 | 1837 [1838] |
| Asteraceae | |
Acanthoxanthium
| (DC.) Fourr. | Ann. Soc. Linn. Lyon, sér. 2 17: 110 | 1869 |
| Asteraceae | |
Acarna
| Boehm. | Def. Gen. Pl. (ed. 3) 195 | 1760 |
| Asteraceae | * |
Acarna
| Hill | Veg. Syst. 4: 13 | 1762 |
| Asteraceae | |
Acarphaea
| Harv. & A. Gray | Mem. Amer. Acad. Arts, n.s. 4(1): 98–99 | 1849 |
| Asteraceae | |
Achaenipodium
| Brandegee | Zoë 5(11): 239 | 1906 |
| Asteraceae | |
Achaetogeron
| A. Gray | Mem. Amer. Acad. Arts, n.s. 4(1): 72 | 1849 |
| Asteraceae | |
Achariterium
| M. J. Bluff & C. A. Fingerhuth | Compend. Fl. German. 2: 345 | 1825 |
| Asteraceae | |
Achillea
| L. | Sp. Pl. 2: 896 | 1753 |
| Asteraceae | |
Achnophora
| F. Muell. | Trans. & Proc. Roy. Soc. South Australia 6: 32 | 1883 |
| Asteraceae | |
Achnopogon
| Maguire, Steyerm. & Wurdack | Mem. New York Bot. Gard. 9: 437 | 1957 |
| Asteraceae | |
Achromolaena
| Cass. | Dict. Sci. Nat. (ed. 2) 56: 222 | 1828 |
| Asteraceae | |
Achrysum
| A. Gray | Hooker's J. Bot. Kew Gard. Misc. 4: 228 | 1852 |
| Asteraceae | |
Achyrachaena
| Schauer | Index Seminum (Bratislava) 1837: [3] | 1837 |
| Asteraceae | |
Achyrobaccharis
| Sch. Bip. ex Walp. | Repert. 2: 952 | 1843 |
| Asteraceae | |
Achyrocline
| (Less.) DC. | Prodr. 6: 219 | 1837 [1838] |
| Asteraceae | ! |
Achyrocoma
| (Cass.) Cass. | Dict. Sci. Nat. (ed. 2) 57: 341 | 1828 |
| Asteraceae | * |
Achyrocoma
| Post & Kuntze | Lex. Gen. Phan. 4 | 1903 |
| Asteraceae | |
Achyrocome
| Schrank | Denkschr. Königl. Akad. Wiss. München 8: 147, 170 | 1824 |
| Asteraceae | |
Achyropappus
| Kunth | Nov. Gen. Sp. (folio ed.) 4: 202–203 | 1820 [1818] |
| Asteraceae | * |
Achyrophorus
| Adans. | Fam. Pl. 2: 112, 512 | 1763 [1763] |
| Asteraceae | |
Achyroseris
| Sch. Bip. | Nov. Actorum Acad. Leop. Carol. Nat. Cur. 21: 165 | 1845 |
| Asteraceae | |
Achyrothalamus
| O. Hoffm. | Bot. Jahrb. Syst. 15: 541 | 1893 |
| Asteraceae | |
Acilepidopsis
| H. Rob. | Phytologia 67(4): 291 | 1989 |
| Asteraceae | |
Acilepis
| D. Don | Prodr. Fl. Nepal. 169 | 1825 |
| Asteraceae | |
Aciphyllaea
| (DC.) A. Gray | Mem. Amer. Acad. Arts, n.s. 4: 91 | 1849 |
| Asteraceae | |
Acleia
| DC. | Prodr. 6: 340 | 1837 [1838] |
| Asteraceae | ! |
Acmella
| Rich. ex Pers. | Syn. Pl. 2: 472 | 1807 |
| Asteraceae | ** |
Acocotli
| F. Hern. ex Altam. & Ramírez | Datos Mater. Méd. Mex. 2: 153–154 | 1898 |
| Asteraceae | |
Acoma
| Benth. | Bot. Voy. Sulphur 29 | 1844 |
| Asteraceae | |
Acomis
| F. Muell. in Benth. | Fl. Austral. 3: 591 | 1867 |
| Asteraceae | ! |
Acosta
| Adans. | Fam. Pl. 2: 117, 512 | 1763 |
| Asteraceae | |
Acostitrapa
| Rauschert | Feddes Repert. 83: 655 | 1973 |
| Asteraceae | |
Acourtia
| D. Don | Trans. Linn. Soc. London 16(2): 203–204 | 1830 |
| Asteraceae | |
Acrisione
| B. Nord. | Bot. Jahrb. Syst. 107: 582 | 1985 |
| Asteraceae | |
Acritopappus
| R.M. King & H. Rob. | Phytologia 24: 401 | 1972 |
| Asteraceae | |
Acrocentron
| Cass. | Dict. Sci. Nat. (ed. 2) 44: 37 | 1826 |
| Asteraceae | |
Acroclinium
| A. Gray | Hooker's J. Bot. Kew Gard. Misc. 4: 270 | 1852 |
| Asteraceae | |
Acrolophus
| Cass. | Dict. Sci. Nat. (ed. 2) 50: 247, 253 | 1827 |
| Asteraceae | |
Acroptilion
| Endl. | Ench. 247 | 1841 |
| Asteraceae | |
Acroptilon
| Cass. | Dict. Sci. Nat. (ed. 2) 50: 464–467 | 1827 |
| Asteraceae | |
Actartife
| Raf. | Autik. Bot. 20 | 1840 |
| Asteraceae | |
Actimeris
| Raf. | Amer. Monthly Mag. & Crit. Rev. 4: 195 | 1819 |
| Asteraceae | |
Actinea
| Juss. | Ann. Mus. Natl. Hist. Nat. 2: 425 | 1803 |
| Asteraceae | *** |
Actinella
| Pers. | Syn. Pl. 2: 469 | 1807 |
| Asteraceae | * |
Actinella
| Juss. ex Nutt. | Gen. N. Amer. Pl. 2: 173–174 | 1818 |
| Asteraceae | |
Actinobole
| Endl. | Gen. Pl. Suppl. 3: 70 | 1843 |
| Asteraceae | |
Actinolepis
| DC. | Prodr. 5: 655 | 1836 |
| Asteraceae | ! |
Actinomeris
| Nutt. | Gen. N. Amer. Pl. 2: 181 | 1818 |
| Asteraceae | |
Actinopappus
| Hook. f. ex A. Gray | Hooker's J. Bot. Kew Gard. Misc. 4: 226 | 1852 |
| Asteraceae | |
Actinoseris
| (Endl.) Cabrera | Bol. Soc. Argent. Bot. 13: 46 | 1970 |
| Asteraceae | |
Actinospermum
| Elliott | Sketch Bot. S. Carolina 2: 448 | 1824 [1823] |
| Asteraceae | |
Actipsis
| Raf. | Fl. Tellur. 2: 43 | 1836 [1837] |
| Asteraceae | |
Actispermum
| Raf. | New Fl. 1: 61 | 1836 |
| Asteraceae | |
Actites
| Lander | Telopea 1(2): 130 | 1976 |
| Asteraceae | |
Addisonia
| Rusby | Bull. Torrey Bot. Club 20(11): 432 | 1893 |
| Asteraceae | |
Adeia
| G.L. Nesom | Phytoneuron 2021-38: 5 | 2021 |
| Asteraceae | |
Adelmannia
| Rchb. | Consp. 110 | 1828 |
| Asteraceae | !! |
Adelostigma
| Steetz | Naturw. Reise Mossambique 6(Bot., 2): 428 | 1864 |
| Asteraceae | |
Adenachaena
| DC. | Prodr. 6: 49, 680 | 1837 [1838] |
| Asteraceae | |
Adenanthellum
| B. Nord. | Bot. Not. 132: 160 | 1979 |
| Asteraceae | |
Adenanthemum
| B. Nord. | Bot. Not. 129: 157 | 1976 |
| Asteraceae | ! |
Adenocaulon
| Hook. | Bot. Misc. 1(1): 19–20, pl. 15 | 1829 |
| Asteraceae | |
Adenocritonia
| R.M. King & H. Rob. | Phytologia 33(4): 281 | 1976 |
| Asteraceae | |
Adenocyclus
| Less. | Linnaea 4: 337 | 1829 |
| Asteraceae | |
Adenoglossa
| B. Nord. | Bot. Not. 129: 137 | 1976 |
| Asteraceae | |
Adenogonum
| Welwitsch ex W. P. Hiern | J. Bot. 36: 290 | 1898 |
| Asteraceae | |
Adenolepis
| Less. | Linnaea 6: 510 | 1831 |
| Asteraceae | |
Adenoon
| Dalzell | Hooker's J. Bot. Kew Gard. Misc. 2: 344 | 1850 |
| Asteraceae | |
Adenopappus
| Benth. | Pl. Hartw. 41 | 1840 |
| Asteraceae | !! |
Adenophyllum
| Pers. | Syn. Pl. 2: 458 | 1807 |
| Asteraceae | |
Adenoselen
| Spach | Hist. Nat. Vég. 10: 23 | 1841 |
| Asteraceae | |
Adenosolen
| DC. | Prodr. 6: 136 | 1837 [1838] |
| Asteraceae | |
Adenospermum
| Hook. & Arn. | J. Bot. (Hooker) 3: 318 | 1841 |
| Asteraceae | |
Adenostema
| N.H.F. Desp. | Dict. Sci. Nat. (ed. 2) 1: 256 | 1816 |
| Asteraceae | ! |
Adenostemma
| J.R. Forst. & G. Forst. | Char. Gen. Pl. 45, pl. 45 | 1775 |
| Asteraceae | |
Adenostyles
| Cass. | Dict. Sci. Nat. (ed. 2) 1(Suppl.): 59. | 1816 |
| Asteraceae | |
Adenothamnus
| D.D. Keck | Madroño 3(1): 6 | 1935 |
| Asteraceae | |
Adenotrichia
| Lindl. | Bot. Reg. | 1828 |
| Asteraceae | |
Adiaphila
| G.L. Nesom | Phytoneuron 2021-38: 8 | 2021 |
| Asteraceae | |
Adopogon
| Neck. ex Kuntze | Revis. Gen. Pl. 1: 304 | 1891 |