Amaranthus - Species Dictionary - Global : iSpot Nature - Your place to share nature. iSpot is a website aimed at helping anyone identify anything in nature. Once you've registered, you can add an observation to the website and suggest an identification yourself or see if anyone else can identify it for you.

Catalogue of Life
Plantae, Tracheophyta, Magnoliopsida, Caryophyllales, Amaranthaceae, Amaranthus
Amaranthus viscidulus, Amaranthus albus, Amaranthus viridis, Amaranthus spinosus, Amaranthus retroflexus, Amaranthus polygonoides, Amaranthus hypochondriacus, Amaranthus hybridus, Amaranthus deflexus, Amaranthus cruentus, Amaranthus caudatus, Amaranthus tricolor, Amaranthus blitum, Amaranthus graecizans, Amaranthus thunbergii, Amaranthus lineatus, Amaranthus pumilus, Amaranthus wrightii, Amaranthus powellii, Amaranthus chihuahuensis, Amaranthus palmeri, Amaranthus greggii, Amaranthus blitoides, Amaranthus watsonii, Amaranthus brownii, Amaranthus crispus, Amaranthus tamaulipensis, Amaranthus texensis, Amaranthus tucsonensis, Amaranthus arenicola, Amaranthus obcordatus, Amaranthus crassipes, Amaranthus acanthochiton, Amaranthus californicus, Amaranthus scleropoides, Amaranthus acutilobus, Amaranthus tuberculatus, Amaranthus muricatus, Amaranthus fimbriatus, Amaranthus torreyi, Amaranthus cannabinus, Amaranthus australis, Amaranthus dubius, Amaranthus floridanus, Amaranthus taishanensis, Amaranthus tenuifolius, Amaranthus roxburghianus