| Rike | Planteriket (Plantae) |
| Uekte gruppe | | Karplanter (Tracheophytes) |
| Overrekke | | | Frøplanter (Spermatophyte) |
| Rekke | | | | Dekkfrøete blomsterplanter (Magnoliophyta) |
| Underklasse | | | | | Tofrøblader (Magnoliidae) |
| Familie | | | | | | Amarantfamilien (Amaranthaceae) |
| Slekt | | | | | | | Amarantslekta (Amaranthus) |
| Art | | | | | | | | Blyamarant (Amaranthus blitum) |
| Art | | | | | | | | Broddamarant (Amaranthus deflexus) |
| Art | | | | | | | | Duskamarant (Amaranthus retroflexus) |
| Art | | | | | | | | Gresk amarant (Amaranthus graecizans) |
| Art | | | | | | | | Havneamarant (Amaranthus quitensis) |
| Art | | | | | | | | Hvitamarant (Amaranthus albus) |
| Art | | | | | | | | Meldeamarant (Amaranthus blitoides) |
| Art | | | | | | | | Reveamarant (Amaranthus caudatus) |
| Art | | | | | | | | Smalamarant (Amaranthus viridis) |
| Art | | | | | | | | Soyaamarant (Amaranthus palmeri) |
| Art | | | | | | | | Toppamarant (Amaranthus hybridus) |
| Underart | | | | | | | | | Blodamarant (Amaranthus hybridus subsp. cruentus) |
| Underart | | | | | | | | | Nåleamarant (Amaranthus hybridus subsp. hybridus) |
| Underart | | | | | | | | | Praktamarant (Amaranthus hybridus subsp. hypochondriacus) |
| Underart | | | | | | | | | Grønnamarant (Amaranthus hybridus subsp. powellii) |
| Art | | | | | | | | Tornamarant (Amaranthus spinosus) |