*[http://www.plantnames.unimelb.edu.au/Sorting/Populus.html Multilingual Plant Name Database]
*[http://www.hort.purdue.edu/newcrop/nexus/Populus_nigra_nex.html NewCrop Purdue]
*[http://www.theplantlist.org/tpltpl1.1/search?q=Populus%20nigra Plant Listrecord/kew-5000337]
*[http://pfaf.org/user/Plant.aspx?LatinName=Populus%20nigra Plants for a future]
*[http://www.sierradebaza.org/principal_10-10/notic1_10-10.htm Sierra de Baza (Espagne)]