Alternanthera sessilis (sessile joyweed) is a species of shrub in the family pigweed. It has a self-supporting growth form. It is associated with freshwater habitat. It is native to U.S. Virgin Islands, Puerto Rico, China, Myanmar, New Zealand, India, Asia, Indonesia, Australia, Philippines, Northern Mariana Islands, Micronesia, Nepal, Vietnam, Palau, Cambodia, Thailand, Malaysia, Bhutan, Guam, Singapore, Solomon Islands, Taiwan, Espirito Santo, Roraima, Pará, Amazônia, Amazônia, Mato Grosso do Sul, Bahia, Caatinga, Rio de Janeiro, Pantanal, Minas Gerais, Mato Grosso, Acre (Brazil), Paraná, Mata Atlântica, Santa Catarina, São Paulo, and Cerrado. It has simple, broad leaves. Flowers are visited by Ceylalictus aldabranus (Cockerell 1912). It is a photoautotroph. Individuals can grow to 2.2 m.
EOL has data for 25 attributes, including: