Samples of Euphorbia peplus L. (Euphorbiaceae) specimens were taken from the ground at Universidad Nacional de Colombia, Bogota (Bello 262). Microtome slices and freehand slices were made following histological techniques, to study and determine the plant anatomy; fresh samples were observed to study and determine the plant morphology. Morphological features were established, as the plant specific architecture, the ciatium, the radical system, the leaves diverse shapes and the characteristics of the fruit and seed. Anatomical features as the limited secondary growth on stemand root were also determined.