Erigeron bonariensis (Asthmaweed) is a species of shrub in the family Asteraceae. They have a self-supporting growth form. They are native to Maranhao, Caatinga, Amapá, Roraima, SãO Paulo, Pernambuco, Rio De Janeiro, Espirito Santo, Rio Grande Do Norte, Ceará, Mata Atlântica, GoiáS, Pará, ParaíBa, Minas Gerais, Acre (Brazil), Sergipe, Cerrado, Tocantins, Pantanal, Amazônia, Mato Grosso Do Sul, Pampa, Piauí, Distrito Federal, Alagoas, RondôNia, Mato Grosso, Paraná, Rio Grande Do Sul, Bahia, and Santa Catarina. They have simple, broad leaves and achenes. Flowers are visited by Eretmocera syleuta, Ceratina ericia, and Heriades spiniscutis. Individuals can grow to 0.38 m.
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