| system | Vitae - living organisms |
| Aphanobionta Novák, 1930 - viruses and viroids | |
| domain | Nucleacuea |
| divisio | Vira - viruses |
| phylum | ss RNA non-encapsulated viruses |
| subphylum | tripartite viruses |
| family | Bromoviridae - Bromovirus group |
| genus | Alfamovirus - Alfalfa mosaic virus group |