Populus nigra L.
Data source(s):
  • Wu Zhengyi & Peter H. Raven 1999. Flora of China: Vol.4. Cycadaceae through Fagaceae . Science Press (Beijing) & Missouri Botanical Garden (St. Louis) 449 pp., p.159
  • Anon. 1991. The Hillier manual of trees & shrubs. David & Charles 704 pp.