The root and the stem of the botanical specie Mikania laevigata Schultz Bip. ex Baker, commonly known as guaco-do-mato, were morphologically and anatomically studied. It was concluded that there are very small anatomical structures differences between both the vegetal drugs and was proposed the observation of the consistence apex and base fragments of the leaves to assure the differential diagnosis.
Mikania laevigata Schultz Bip. ex Baker; differential diagnosis Mikania’s species; guaco-do-mato