The book Etnobotânica de plantas medicinais no Vale do Guadiana (Ethnobotany of medicinal plants in Guadiana Valley), by Cláudia Alves de Melo and coordination by Sandra Cascalheiro, was published in 2008, in Mértola, by ADPM - Associação de Defesa do Património de Mértola (Association for Mértola Heritage Defense). It has 64 medicinal species, the most used by the population of this area. For each one there is a fact sheet including an illustration, the various common names by which the plant is known in the region, his Family and a botanical description of the specie, with ecology information, parts used and types of known application. The book, with 100 pages, color illustrations and a glossary of botanical, can be purchased from ADPM. ISBN: 978-989-95503-6-0