Editing Populus (section)

=== Phylogeny ===
Some of the most easily identifiable fossils of this genus belongs to ''[[Poplus wilmattae]]'', which come from the [[Danian|Late Paleocene]] of North America about 58 million years ago.<ref>{{cite book |last1=Dickmann |first1=Donald |url=http://www.fao.org/3/a-i2670e.pdf |archive-url=https://web.archive.org/web/20160808130345/http://www.fao.org/3/a-i2670e.pdf |archive-date=2016-08-08 |url-status=live |title=Poplars and Willows in the World |last2=Kuzovkina |first2=Yulia |date=2008 |publisher=The Food and Agriculture Organization of the United Nations |isbn=978-92-5-107185-4 |page=27 |access-date=24 March 2020}}</ref> However, fossils from the Cretaceous of this genus have been found in Tibet and Heilongjiang, China.<ref>{{Cite journal |last1=Liu |first1=Xia |last2=Wang |first2=Zhaoshan |last3=Wang |first3=Wei |last4=Huang |first4=Qinqin |last5=Zeng |first5=Yanfei |last6=Jin |first6=Yu |last7=Li |first7=Honglei |last8=Du |first8=Shuhui |last9=Zhang |first9=Jianguo |date=2022 |title=Origin and evolutionary history of Populus (Salicaceae): Further insights based on time divergence and biogeographic analysis |journal=Frontiers in Plant Science |volume=13 |doi=10.3389/fpls.2022.1031087 |issn=1664-462X |pmc=9815717 |pmid=36618663 |doi-access=free }}</ref>