| 0 | PI 545684 | 495 | Tithonia rotundifolia (Mill.) S. F. Blake | Former, Soviet Union | NC7 | | | 1984 | COLLECTED | | | | | | Cultivated material | Large annual. | 1440620 | PI 545684 |
| 1 | PI 438602 | W-C 2449 | Tithonia sp. | Guatemala | NC7 | | Not Available | 1979 | COLLECTED | 02/27/1979 | Weed in fields of Salama, Baja Verapaz Dept. | 15.13333333, -90.26666667 | | | Wild material | Plants to 1.5m. Flowers yellow, 10cm diam. | 1333538 | PI 438602 |
| 2 | PI 438932 | HW 0179 | Tithonia diversifolia (Hemsl.) A. Gray | Mexico | | | Historic | 1979 | COLLECTED | 02/01/1979 | Villa Madero, Campeche | | | | | Perennial sub-shrub to 3m. Sunflower-like foliage and flowers to 20cm diam., orange yellow. | 1333868 | PI 438932 |
| 3 | PI 438933 | W-C 2312 | Tithonia sp. | Mexico | NC7 | | Not Available | 1979 | COLLECTED | 02/09/1979 | Weed in cornfields near Guayabal, Municipio Paso de Ovejas, Veracruz. | 19.26666667, -96.43333333 | | | Wild material | Branched herb to 3m tall. Flowers with single row ray petals, yellow. Weed in cornfields. | 1333869 | PI 438933 |
| 4 | PI 442363 | | Tithonia sp. | Mexico | NC7 | | Not Available | 1979 | COLLECTED | 10/22/1979 | Soledad Diez Gutierrez, San Luis Potosi | | | | | Flowers large, yellow. Local name Girasol silvestre (translates to "wild sunflower"). | 1337299 | PI 442363 |
| 5 | PI 442364 | | Tithonia sp. | Mexico | NC7 | | Not Available | 1979 | COLLECTED | 10/24/1979 | About 1 km south of Queretaro line near Rancho La Bruja, Gua najuato | | | | | Flowers large, yellow. | 1337300 | PI 442364 |
| 6 | PI 442365 | | Tithonia sp. | Mexico | NC7 | | Not Available | 1979 | COLLECTED | 10/24/1979 | San Bartolo turnoff, Km 18.5, Pan American Highway | | | | | Plants to 1 m tall. Flowers yellow, about 6.5cm diam. Local name Girasol silvestre (translates to "wild sunflower"). | 1337301 | PI 442365 |
| 7 | PI 442416 | | Tithonia sp. | Mexico | NC7 | | Not Available | 1979 | COLLECTED | 10/23/1979 | Laguna San Vincente, San Luis Postosi | | | | | Plants to 1 m tall. Flowers yellow, rays of different widths, 7 to 8cm diam., profuse. Local name Girasol silvestre. | 1337352 | PI 442416 |
| 8 | PI 121648 | | Tithonia diversifolia (Hemsl.) A. Gray | India | | | Historic | 1937 | COLLECTED | | | | | | | | 1831920 | PI 121648 |
| 9 | PI 115034 | Natasuria | Tithonia diversifolia (Hemsl.) A. Gray | Sri Lanka | | | Historic | 1936 | COLLECTED | 03/01/1936 | Kandy | | | | | | 1813794 | PI 115034 |
| 10 | PI 58588 | | Tithonia diversifolia (Hemsl.) A. Gray | Luzon, Philippines | | | Historic | 1924 | COLLECTED | | | | | | | | 1499848 | PI 58588 |
| 11 | PI 57093 | | Tithonia diversifolia (Hemsl.) A. Gray | Luzon, Philippines | | | Historic | 1923 | COLLECTED | | | | | | | | 1502746 | PI 57093 |
| 12 | PI 54458 | | Tithonia diversifolia (Hemsl.) A. Gray | Jawa, Indonesia | | | Historic | 1921 | COLLECTED | | | | | | | | 1501907 | PI 54458 |
| 13 | PI 54461 | | Tithonia diversifolia (Hemsl.) A. Gray | Sri Lanka | | | Historic | 1921 | COLLECTED | | | | | | | | 1501910 | PI 54461 |
| 14 | PI 50279 | No. 570 | Tithonia rotundifolia (Mill.) S. F. Blake | Democratic Republic of the Congo | | | Historic | 1920 | COLLECTED | 02/10/1920 | | | | | | | 1617679 | PI 50279 |
| 15 | PI 43782 | | Tithonia rotundifolia (Mill.) S. F. Blake | Al Qāhirah, Egypt | | | Historic | 1916 | COLLECTED | | | | | | | | 1608468 | PI 43782 |
| 16 | NA 84551 | 'Torch' | Tithonia rotundifolia (Mill.) S. F. Blake | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Tithonia rotundifolia 'Torch'. This accession may be reacquired regularly, sometimes from different sources, for the purpose of display in the National Herb Garden. | 2153680 | NA 84551 |
| 17 | OPGC 15 | OPGC 15 | Tithonia sp. | | | | Historic | 2003 | | | | | | | Cultivar | | 1690061 | OPGC 15 |
| 18 | Ames 23843 | NU 40315 | Tithonia calva Sch. Bip. | Sinaloa, Mexico | NC7 | | Not Available | 1997 | COLLECTED | PRE 12/1959 | Palmito. | | | | Wild material | | 1546135 | Ames 23843 |
| 19 | Ames 23844 | NU 49368 | Tithonia calva Sch. Bip. | Mexico | NC7 | | Not Available | 1997 | COLLECTED | PRE 07/1969 | | | | | Wild material | | 1546136 | Ames 23844 |
| 20 | Ames 7838 | Mii 467 | Tithonia diversifolia (Hemsl.) A. Gray | Sri Lanka | NC7 | | Not Available | 1987 | COLLECTED | 04/21/1986 | | | | | | | 1041424 | Ames 7838 |
| 21 | MIA 26594 | | Tithonia diversifolia (Hemsl.) A. Gray | | | | Historic | 1980 | DONATED | 08/1980 | | | | | | | 1093306 | MIA 26594 |