| Asteraceae | |
Tridax accedens
| S.F. Blake | J. Washington Acad. Sci. 33(9): 270–271 | 1943 |
| Asteraceae | |
Tridax angustifolia
| Spruce ex Benth. & Hook. f. | Gen. Pl. 2: 392 | 1873 |
| Asteraceae | |
Tridax balbisioides
| (Kunth) A. Gray | Proc. Amer. Acad. Arts 15: 39 | 1880 |
| Asteraceae | |
Tridax bicolor
| A. Gray | Mem. Amer. Acad. Arts, n.s. 4: 104–105 | 1849 |
| Asteraceae | |
Tridax bilabiata
| A.M. Powell | S. W. Naturalist 8(3): 178 | 1963 |
| Asteraceae | |
Tridax boliviensis
| (Wedd.) R.E. Fr. | Ark. Bot. 5(13): 21 | 1906 |
| Asteraceae | |
Tridax brachylepis
| Hemsl. | Biol. Cent.-Amer., Bot. 2(9): 207 | 1881 |
| Asteraceae | |
Tridax cajamarcensis
| H. Rob. | Phytologia 82: 61 | 1997 |
| Asteraceae | |
Tridax candidissima
| A. Gray | Proc. Amer. Acad. Arts 15(1): 39 | 1880 [1879] |
| Asteraceae | |
Tridax coronopifolia
| (Kunth) Hemsl. | Biol. Cent.-Amer., Bot. 2(9): 207–208 | 1881 |
| Asteraceae | |
Tridax dubia
| Rose | Contr. U.S. Natl. Herb. 1: 337, pl. 33 | 1895 |
| Asteraceae | |
Tridax durangensis
| García Arév. | Acta Bot. Mex. 12: 9–11, f. 1 | 1990 |
| Asteraceae | |
Tridax ehrenbergii
| Sch. Bip. ex Klatt | Leopoldina 23(15–16): 145 | 1887 |
| Asteraceae | |
Tridax erecta
| A. Gray | Proc. Amer. Acad. Arts 21: 390 | 1886 |
| Asteraceae | |
Tridax gaillardioides
| Hook. & Arn. | Bot. Beechey Voy. 148–149 | 1841 [1833] |
| Asteraceae | |
Tridax galeottii
| Klatt | | |
| Asteraceae | |
Tridax hintonii
| (B.L. Turner & A.M. Powell) Keil, Luckow & Pinkava | Madroño 34: 357 | 1987 |
| Asteraceae | |
Tridax hintoniorum
| B.L. Turner | Phytologia 73(5): 350, f. 1 | 1992 |
| Asteraceae | |
Tridax imbricatus
| Sch. Bip. | | |
| Asteraceae | |
Tridax lanceolata
| Klatt | Leopoldina 23(15–16): 145 | 1887 |
| Asteraceae | |
Tridax luisana
| Brandegee | Univ. Calif. Publ. Bot. 3(8): 392 | 1909 |
| Asteraceae | |
Tridax macropoda
| Gand. | Bull. Soc. Bot. France 65: 47–48 | 1918 |
| Asteraceae | |
Tridax mandonii
| Sch. Bip. | Bull. Soc. Bot. France 12: 82 | 1865 |
| Asteraceae | |
Tridax mexicana
| A.M. Powell | S. W. Naturalist 8(3): 177 | 1963 |
| Asteraceae | |
Tridax moorei
| H. Rob. | Phytologia 44(7): 430 | 1979 |
| Asteraceae | |
Tridax oaxacana
| B.L. Turner | Phytologia 65(2): 139 | 1988 |
| Asteraceae | |
Tridax obovata
| Turcz. | Bull. Soc. Imp. Naturalistes Moscou 24: 187 | 1851 |
| Asteraceae | |
Tridax oligodonta
| S.F. Blake | Contr. U.S. Natl. Herb. 22(8): 648 | 1924 |
| Asteraceae | |
Tridax palmeri
| A. Gray | Proc. Amer. Acad. Arts 15(1): 38–39 | 1880 [1879] |
| Asteraceae | |
Tridax paneroi
| B.L. Turner | Phytologia 94(2): 169–170, f. 1 | 2012 |
| Asteraceae | |
Tridax paraguayensis
| Kuntze | Revis. Gen. Pl. 3(3): 182 | 1898 |
| Asteraceae | |
Tridax peruviensis
| A.M. Powell | S. W. Naturalist 8(3): 178–179 | 1963 |
| Asteraceae | |
Tridax petrophila
| B.L. Rob. & Greenm. | Proc. Amer. Acad. Arts 32(1): 5–6 | 1897 [1896] |
| Asteraceae | |
Tridax platyphylla
| B.L. Rob. | Proc. Amer. Acad. Arts 43(2): 41–42 | 1908 [1907] |
| Asteraceae | ! |
Tridax procumbens
| L. | Sp. Pl. 2: 900 | 1753 |
| Asteraceae | |
Tridax purpurea
| S.F. Blake | Brittonia 2(4): 351–352 | 1937 |
| Asteraceae | |
Tridax purpusii
| Brandegee | Univ. Calif. Publ. Bot. 4(19): 388 | 1913 |
| Asteraceae | |
Tridax rosea
| Sch. Bip. ex B.L. Rob. & Greenm. | Proc. Amer. Acad. Arts 32: 6 | 1897 [1896] |
| Asteraceae | |
Tridax scabrida
| Brandegee | Univ. Calif. Publ. Bot. 6(4): 73 | 1914 |
| Asteraceae | |
Tridax serboana
| B.L. Turner | Phytologia 90(2): 160–162, f. 1 | 2008 |
| Asteraceae | |
Tridax sodiroi
| Hieron. | Bot. Jahrb. Syst. 29: 51 | 1900 |
| Asteraceae | |
Tridax stuebelii
| Hieron. | Bot. Jahrb. Syst. 21: 351 | 1895 |
| Asteraceae | |
Tridax tamaulipana
| B.L. Turner | Phytologia Mem. 26a: 24–25, f. 34, map 16 | 2016 |
| Asteraceae | |
Tridax tambensis
| Hieron. | Bot. Jahrb. Syst. 21: 351 | 1895 |
| Asteraceae | |
Tridax tenuifolia
| Rose | Contr. U.S. Natl. Herb. 3(5): 319 | 1895 |
| Asteraceae | |
Tridax trianae
| Hieron. | Bot. Jahrb. Syst. 21(3): 350 | 1895 |
| Asteraceae | |
Tridax trifida
| (Kunth) A. Gray | Proc. Amer. Acad. Arts 15: 39 | 1880 |
| Asteraceae | |
Tridax trilobata
| (Cav.) Hemsl. | Biol. Cent.-Amer., Bot. 2(9): 208 | 1881 |
| Asteraceae | |
Tridax tuberosa
| B.L. Rob. & Greenm. | Proc. Amer. Acad. Arts 32: 4 | 1896 |
| Asteraceae | |
Tridax venezuelensis
| Aristeg. & Cuatrec. | Fl. Venezuela 10: 694 | 1964 |
| Asteraceae | |
Tridax verticillata
| Klatt | Leopoldina 25: 107 | 1889 |
| Asteraceae | |
Tridax yecorana
| B.L. Turner | Phytologia 79: 286 | 1996 |