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CCDB → Angiosperms → Cannabaceae → Humulus → Humulus lupulus var. lupuloides E. Small
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Humulus americanus Nutt. | Humulus lupulus var. lupuloides E. Small | 20 | IPCN online | Löve, A. & D. Löve. 1982. In: IOPB chromosome number reports LXXIV. Taxon 31: 120–126. | |||
| Humulus americanus Nutt. | Humulus lupulus var. lupuloides E. Small | 20 | Fedorov, 1974 | Liive A. 1954b | |||
| Humulus americanus Nutt. | Humulus lupulus var. lupuloides E. Small | 20 | Fedorov, 1974 | Sinot& 1929b 1930 | |||
| Humulus americanus Nutt. | Humulus lupulus var. lupuloides E. Small | 20 | Fedorov, 1974 | Winge 1929, 1932a, b | |||
| Humulus americanus Nutt. | Humulus lupulus var. lupuloides E. Small | 20 | Fedorov, 1974 | Kuhn (T. 1931) | |||
| Humulus americanus Nutt. | Humulus lupulus var. lupuloides E. Small | 20 | Fedorov, 1974 | Kihara, Hfrayoshi 1932 | |||
| Humulus americanus Nutt. | Humulus lupulus var. lupuloides E. Small | 20 | Fedorov, 1974 | Motegi 1962 |