ABSTRACT
Urtica L., the stinging nettle (Urticaceae), is an annual and perennial herb, distinguished with stinging hairs. The leaves are opposite, and the flowers are green with yellow stamens. The male and female flowers are on separate plants. The fruits are achene. These are the characteristics of the Urtica genus which belong to the family Urticaceae. The main varieties identified under the Urtica species are U. dioica L., U. urens L., U. pilulifera L., U. cannabina L., U. membranacea Poiret., U. haussknechtii Boiss., U. atrovirens Req., U. rupestris Guss., U. chamaedryoides Pursh., U. ferox Forst.
