Morphological Study of the Pollen Grains of Some Species belong to Genera Urtica L. and Parietaria L. (Urticaceae) in Iraq. Iraqi Journal of Science [Internet]. 2022 Jun. 24 [cited 2024 May 17];57(2A):877-1. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7450