| Cannabaceae | |
Humulus americanus
| Nutt. | Proc. Acad. Nat. Sci. Philadelphia 4(1): 23 | 1847 |
| Cannabaceae | |
Humulus cordifolius
| Miq. | Ann. Mus. Bot. Lugduno-Batavi 2: 133 | |
| Cannabaceae | |
Humulus japonicus
| Siebold & Zucc. | Fl. Jap. 2: 89 | 1846 |
| Cannabaceae | |
Humulus lupulus
| L. | Sp. Pl. 2: 1028 | 1753 |
| Cannabaceae | |
Humulus neomexicanus
| (A. Nelson & Cockerell) Rydb. | Fl. Rocky Mts. 1061 | 1917 |
| Cannabaceae | |
Humulus scandens
| (Lour.) Merr. | Trans. Amer. Philos. Soc., n.s. 24(2): 138 | 1935 |
| Cannabaceae | |
Humulus yunnanensis
| H.H. Hu | Bull. Fan Mem. Inst. Biol. 7: 211 | 1936 |