Argan tree (Argania spinosa L. (Skeels)) is an endemic species in southwest of Algeria (Tindouf) and Marocco. It is rare and highly appreciated for its various qualities as fodder, oil, wood and its ability to resist drought, but threatened. Seeds used in our studies are collected in Chlef plantation where this specie was introduced. Seed and almond morphological studies (length, diameter, weight and diameter/length ratio) revealed dimensional changes and three seed shapes were identified (fusiform, ellipsoidal and oval). Weight and seed shape are more dependent on diameter. The parameters of regeneration through the germination of Argan seeds (55.10%) and the height of seedlings after 8 weeks (15.35cm) gave satisfactory results. The physicochemical parameters of the oil analyzed, revealed that this oil is "extra virgin", rich in antioxidants, pure and linoleic oleic type. Argan tree introduced in Chlef is well adapted to local conditions, which are favorable to its conservation and extension of its range, where it would constitute an ecotype of the Argan tree.