Description from Flora of China
Urtica dioica var. vulgaris Weddell; U. tibetica W. T. Wang.
Plants densely covered with stinging and setulose hairs. Stipules 5-8 mm; petiole 1/2 as long as leaf blade; leaf blade often ovate, sometimes lanceolate, 5-11 × 2.5-4 cm, base cordate, margin serrate. Female inflorescences paniculate, longer than petioles, often drooping. Fl. Jul-Aug, fr. Aug-Sep.
Urtica tibetica is treated here as merely a shade form of U. dioica subsp. dioica.
Partly shady and moist places in forests, thickets, stream banks; 3200-4800 m. Qinghai, W Xinjiang, C and W Xizang [C Asia (C Himalayas); N Africa, Europe, North America].