Geographic location and seasonality affect the chemical composition of essential oils of Lippia alba accessions

José Carlos Freitas de Sá Filho, Daniela Aparecida de Castro Nizio, Alisson Marcel Souza de Oliveira, Mércia Freitas Alves, Roberta Camargos de Oliveira, José Magno Queiróz Luz, Paulo César de Lima Nogueira, Maria de Fátima Arrigoni-Blank, Arie Fitzgerald Blank