Alternanthera philoxeroides (Alligator Weed) is a species of shrub in the family pigweed. It has a self-supporting growth form. It is associated with freshwater habitat. Alligator Weed is native to North America, Venezuela, Peru, Argentina, Brazil, Paraguay, Uruguay, Bolivia, Amazônia, Rio Grande do Norte, Rio Grande do Sul, Pampa, Mato Grosso do Sul, Cerrado, Paraná, São Paulo, Pantanal, Mato Grosso, Pará, Amapá, Sergipe, Santa Catarina, Caatinga, Bahia, Minas Gerais, Espirito Santo, Paraíba, Alagoas, Pernambuco, Amazônia, and Mata Atlântica. It has simple, broad leaves and white flowers. Flowers are visited by Melangyna novaezelandiae (Macquart 1855). Alligator Weed is a photoautotroph. Individuals can grow to 0.061 m.
EOL has data for 70 attributes, including: