Urtica dubia, Forskal

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 68

7. U. dubia Forskâl , Fl. Aegypt. cxxi (1775)

( U. caudata Vahl , non Burm. fil., U. membranacea Poiret ).

Annual 15-80 cm; monoecious. Leaves 2-6(-10) cm, ovate, subcordate at base, serrate; petiole almost as long as the lamina; stipules 2 at each node. Racemes unisexual; the lower female, shorter than petiole; the upper male, longer than petiole, erecto-patent, the flowers inserted unilaterally on an inflated axis. Mediterranean region, Portugal, Açores. Al Az BI Co Cr Ga Gr Ho It Ju Lu Sa Si Tu.