Pigweed (Amaranthus) is a biological genus in the family Amaranthaceae (Pigweed) and order Caryophyllales.
Amaranthus muricatus
Amaranthus acutilobus
Amaranthus chihuahuensis
Amaranthus tamaulipensis
Amaranthus viscidulus
Amaranthus X texensis
Amaranthus X tucsonensis
Amaranthus lineatus
Amaranthus scleropoides
Amaranthus brownii
Amaranthus californicus
Amaranthus retroflexus
Amaranthus crispus
Amaranthus floridanus
Amaranthus fimbriatus
Amaranthus acanthochiton
Amaranthus greggii
Amaranthus tricolor
Amaranthus deflexus
Amaranthus blitoides
Amaranthus graecizans
Amaranthus palmeri
Amaranthus spinosus
Amaranthus albus
Amaranthus powellii
Amaranthus hypochondriacus
Amaranthus blitum
Amaranthus caudatus
Amaranthus cruentus
Amaranthus tuberculatus
Amaranthus pumilus
Amaranthus viridis
Amaranthus hybridus
Amaranthus australis
Amaranthus dubius
Amaranthus crassipes
Amaranthus thunbergii
Amaranthus cannabinus
Amaranthus arenicola
Amaranthus torreyi
Amaranthus obcordatus
Amaranthus polygonoides
Amaranthus watsonii
Amaranthus wrightii
Aerva
Allenrolfea
Arthrocnemum
Beta
Iresine
Blutaparon
Corispermum
Camphorosma
Centrostachys
Achyranthes
Chamissoa
Aphanisma
Celosia
Gossypianthus
Cyathula
Cycloloma
Deeringia
Digera
Dysphania
Enchylaena
Exomis
Extriplex
Salicornia
Gomphrena
Chenopodium
Halimione
Halocnemum
Hermbstaedtia
Holmbergia
Tidestromia
Grayia
Alternanthera
Lithophila
Maireana
Guilleminea
Micromonolepis
Kochia
Nitrophila
Charpentiera
Patellifolia
Pfaffia
Philoxerus
Amaranthus
Polycnemum
Monolepis
Proatriplex
Psilotrichum
Nototrichium
Axyris
Atriplex
Halogeton
Suaeda
Bassia
Froelichia
Spinacia
Stutzia
Suckleya
Sarcocornia
Salsola
Krascheninnikovia