Noxious weeds cost Australia billions of dollars each year in agricultural and environmental degradation. These weeds of national significance are among the worst.

Study conducted at Fundação Alfredo da Matta (FUAM) - Manaus (AM), Brazil. Financial support: None. Teaching and Research Sector - Fundação Alfredo da Matta (FUAM) - Manaus (AM), Brazil.Fundação ...

I Departamento de Biologia, Universidade Estadual de Maringá, 87025-500 Maringá - PR, Brasil II Departamento de Química, Universidade Estadual de Maringá, 87025-500 Maringá - PR, Brasil Fruits of M.