Asteraceae | ** |
Cosmos sulphureus fo. exaristatus
| Brandegee | Publ. Field Mus. Nat. Hist., Bot. Ser. 8: 411 | 1932 |
Asteraceae | |
Cosmos sulphureus var. exaristatus
| Sherff | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(6): 411 | 1932 |
Asteraceae | |
Cosmos sulphureus var. hirsuticaulis
| Sherff | Amer. J. Bot. 24(2): 90 | 1937 |
Asteraceae | |
Cosmos sulphureus var. leiohynchus
| Griseb. | Fl. Brit. W. I. 374 | 1864 [1861] |