Urtica dioica L. is an invasive plant, widespread in northern of Tunisia. This study is designed to explore the natural biological resources such as plants of agronomic and medicinal interest of Tunisia.

Aromatic & Medicinal Plants
Optimisation techniques of multiplication of Periploca angustifolia L.
The Periploca angustifolia is a native shrub widely distributed in the Mediterranean region. This species is threatened because of its medicinal properties, its pastoral interest