The following species in the flowering plant genus Amaranthus, the amaranths, are accepted by Plants of the World Online. A number of these species are neglected and underutilized crops.
Amaranthus acanthobracteatus Amaranthus acanthochiton Amaranthus acutilobus Amaranthus × adulterinus Amaranthus albus Amaranthus anderssonii Amaranthus arenicola Amaranthus asplundii Amaranthus atropurpureus Amaranthus aureus Amaranthus australis Amaranthus bahiensis Amaranthus bengalense Amaranthus blitoides Amaranthus blitum Amaranthus brandegeei Amaranthus brownii Amaranthus × budensis Amaranthus × cacciatoi Amaranthus californicus Amaranthus cannabinus Amaranthus capensis Amaranthus cardenasianus Amaranthus × caturus Amaranthus caudatus Amaranthus celosioides Amaranthus centralis Amaranthus clementii Amaranthus cochleitepalus Amaranthus commutatus Amaranthus congestus Amaranthus crassipes Amaranthus crispus Amaranthus cruentus Amaranthus cuspidifolius Amaranthus deflexus Amaranthus dinteri Amaranthus fimbriatus Amaranthus floridanus Amaranthus furcatus Amaranthus graecizans Amaranthus grandiflorus Amaranthus greggii Amaranthus hunzikeri Amaranthus hybridus Amaranthus hypochondriacus Amaranthus induratus Amaranthus interruptus Amaranthus × jansen-wachterianus Amaranthus kloosianus Amaranthus lepturus Amaranthus lombardoi Amaranthus looseri Amaranthus macrocarpus Amaranthus minimus Amaranthus mitchellii Amaranthus muricatus Amaranthus neei Amaranthus obcordatus Amaranthus palmeri Amaranthus paraganensis Amaranthus pedersenianus Amaranthus persimilis Amaranthus peruvianus Amaranthus polygonoides Amaranthus powellii Amaranthus praetermissus Amaranthus pumilus Amaranthus × pyxidatus Amaranthus rajasekharii Amaranthus × ralletii Amaranthus retroflexus Amaranthus rhombeus Amaranthus rosengurttii Amaranthus saradhiana Amaranthus scariosus Amaranthus schinzianus Amaranthus scleranthoides Amaranthus scleropoides Amaranthus sonoriensis Amaranthus × soproniensis Amaranthus sparganicephalus Amaranthus spinosus Amaranthus squamulatus Amaranthus standleyanus Amaranthus × tamariscinus Amaranthus tamaulipensis Amaranthus × texensis Amaranthus thunbergii Amaranthus torreyi Amaranthus tortuosus Amaranthus tricolor Amaranthus tuberculatus Amaranthus tucsonensis Amaranthus tunetanus Amaranthus undulatus Amaranthus urceolatus Amaranthus viridis Amaranthus viscidulus Amaranthus vulgatissimus Amaranthus watsonii Amaranthus wrightii
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