About Populus nigra L.
Populus nigra L., commonly known as black poplar, is a species of medium- to large-sized deciduous tree. Mature trees typically reach 20–30 meters in height, though rare individuals may grow up to 40 meters tall. Their leaves are diamond-shaped to triangular, measuring 5–8 cm long and 6–8 cm broad, and are green on both surfaces. The trunks of most individuals grow up to 1.5 m in diameter, but very old unusual individual trees in France have developed trunks with a diameter at breast height (DBH) of over 3 meters. This species is dioecious, meaning male and female flowers grow on separate plants. Its flowers form catkins, and pollination occurs via wind. Black poplar grows in low-lying areas of moist ground. Like most other pioneer species, it has rapid growth and can quickly colonize open areas. Black poplar has a broad natural distribution. It is widespread across Europe, and also occurs in northern Africa, as well as central and west Asia. Its distribution range extends from the Mediterranean in the south to approximately 64° latitude in the north, and from the British Isles in the west to Kazakhstan and China in the east. This range also includes the Caucasus and large parts of the Middle East.
