Ernie Janes / Black poplar (Populus nigra) leaf skeleton macro closeup

Pascal Tordeux / Line of Black poplar trees (Populus nigra) at sunset, Surfontaine, Picardy, France.

Jean E. Roche / Bark of an old Black poplar (Populus nigra) Oppedette Canyon, Provence, France, April 2016.

Ernie Janes / Lombardy poplar trees (Populus nigra italica) reflected in river, England, UK, February.

David Woodfall / Black poplar tree (Populus nigra) by a housing development on a flood plain, Glasdir, Ruthin, Vale of Clwyd, Denbighshire, Wales. November 2012.

Wild Wonders of Europe / Maitland / Thunderstorm over the Galicica mountain range with a Lombardy poplar (Populus nigra) silhouetted, Galicica National Park, Macedonia, Macedonia, June 2009

Wild Wonders of Europe / Smit / Old growth forest of Black poplars (Populus nigra) at sunrise, Gornje Podunavlje Special Nature Reserve, Serbia, June 2009

Wild Wonders of Europe / Smit / Old growth forest of Black poplar trees (Populus nigra) Gornje Podunavlje Special Nature Reserve, Serbia, June 2009

Martin Gabriel / Black poplar tree (Populus nigra), backlit at sunset, Bavaria, Germany, May 2008

Juan Manuel Borrero / Seeds of Black poplar tree (Populus nigra) Spain

Will Watson / Pollarded Black poplar tree {Populus nigra betulifolia} with catkins, Worcs, England

Tony Evans / Black poplar tree silhouette {Populus nigra var betulifolia} UK