Editing Populus (section)

===Selected species===
[[File:PopulusNigra3.jpg|thumb|upright|''[[Populus nigra]]'' in autumn]]
[[File:Heinolan tsaarinpoppeli.jpg|thumb|upright|''[[Populus × petrowskiana]]'' ("Czar's Poplar") in [[Heinola]], Finland]]
*'''[[Populus sect. Populus|''Populus'' section ''Populus'']] – [[aspen]]s and white poplar''' (circumpolar subarctic and cool temperate, and mountains farther south, white poplar warm temperate)
**''[[Populus adenopoda]]'' – Chinese aspen (eastern Asia)
**''[[Populus alba]]'' – white poplar (southern Europe to central Asia)
***[[Populus × canescens|''Populus'' × ''canescens'']] (''P. alba × P. tremula'') – grey poplar
**''[[Populus davidiana]]'' – Korean aspen (eastern Asia)
**''[[Populus grandidentata]]'' – bigtooth aspen (eastern North America)
**''[[Populus luziarum]]'' – [[Jalisco]], Mexico<ref name="primaveralepensis"><Vázquez-García, José & Muñiz-Castro, Miguel Angel & González, Rosa & Nieves-Hernández, Gregorio & Pulido, Maria & Hernández-Vera, Gerardo & Delgadillo, Osvaldo. (2019). "''Populus primaveralepensis'' sp. nov. (Salicaceae, Malpighiales), a new species of white poplar from the Bosque La Primavera Biosphere Reserve in Western Mexico". ''European Journal of Taxonomy''. 2019. 10.5852/ejt.2019.498.</ref>
**''[[Populus primaveralepensis]]'' – [[Jalisco]], Mexico<ref name="primaveralepensis" />
**''[[Populus sieboldii]]'' – Japanese aspen (eastern Asia)
**''[[Populus tremula]]'' – aspen, common aspen, Eurasian aspen, European aspen, quaking aspen (Europe, northern Asia)
**''[[Populus tremuloides]]'' – quaking aspen or trembling aspen (North America)
*'''[[Populus sect. Aigeiros|''Populus'' section ''Aigeiros'']] – black poplars, some of the cottonwoods''' (North America, Europe, western Asia; temperate)
**''[[Populus deltoides]]'' – eastern cottonwood (eastern North America)
**''[[Populus fremontii]]'' – Fremont cottonwood (western North America)
**''[[Populus nigra]]'' – black poplar (Europe), placed here by nuclear DNA; [[Chloroplast DNA|cpDNA]] places it in sect. ''Populus'' (including ''Populus afghanica'')
***[[Populus × canadensis|''Populus'' × ''canadensis'']] (''P. deltoides'' × ''P. nigra'') – hybrid black poplar
***[[Populus × inopina|''Populus'' × ''inopina'']] (''P. nigra'' × ''P. fremontii'') – hybrid black poplar
[[File:Populus lasiocarpa leaves 01 by Line1.JPG|thumb|upright|Leaves of ''[[Populus lasiocarpa]]'']]
*'''[[Populus sect. Tacamahaca|''Populus'' section ''Tacamahaca'']] – balsam poplars''' (North America, Asia; cool temperate)
**''[[Populus angustifolia]]'' – willow-leaved poplar or narrowleaf cottonwood (central North America)
**''[[Populus balsamifera]]'' – Balsam poplar (northern North America) (= ''P. candicans'', ''P. tacamahaca'')
**''[[Populus cathayana]]'' – (northeast Asia)
** ''[[Populus ciliata]]'' – (Asia)
**''[[Populus koreana]]'' <small>J.Rehnder</small> – Korean poplar (northeast Asia)
**''[[Populus laurifolia]]'' – laurel-leaf poplar (central Asia)
**''[[Populus maximowiczii]]'' <small>A.Henry</small> – Maximowicz' poplar, Korean poplar, Mongolian poplar, Japanese poplar (northeast Asia)
**''[[Populus simonii]]'' – Simon's poplar (northeast Asia)
**''[[Populus suaveolens]]'' <small>Fischer</small> – Korean poplar, Mongolian poplar, Japanese poplar (northeast Asia)
**''[[Populus szechuanica]]'' – Sichuan poplar (northeast Asia), placed here by nuclear DNA; [[Chloroplast DNA|cpDNA]] places it in sect. ''Aigeiros''
**''[[Populus trichocarpa]]'' – western balsam poplar or black cottonwood (western North America)
**''[[Populus tristis]]'' (northeast Asia), placed here by nuclear DNA; [[Chloroplast DNA|cpDNA]] places it in sect. ''Aigeiros''
**''[[Populus ussuriensis]]'' – Ussuri poplar (northeast Asia)
**''[[Populus yunnanensis]]'' – Yunnan poplar (east Asia)
*'''''Populus'' section ''Leucoides'' – necklace poplars or bigleaf poplars''' (eastern North America, eastern Asia; warm temperate)
**''[[Populus heterophylla]]'' – downy poplar (southeastern North America)
**''[[Populus lasiocarpa]]'' – Chinese necklace poplar (eastern Asia)
**''[[Populus wilsonii]]'' – Wilson's poplar (eastern Asia)
*'''''Populus'' section ''Turanga'' – subtropical poplars''' (southwest Asia, east Africa; subtropical to tropical)
**''[[Populus euphratica]]'' – Euphrates poplar (North Africa, southwest and central Asia)
**''[[Populus ilicifolia]]'' – Tana River poplar (East Africa)
*'''''Populus'' section ''Abaso'' – Mexican poplars''' (Mexico; subtropical to tropical)
**''[[Populus guzmanantlensis]]'' (Mexico) (may be conspecific with ''[[Populus simaroa]]'')
**''[[Populus mexicana]]'' – Mexico poplar (Mexico)
*'''Intersectional hybrids''' 
**''[[Populus × acuminata]]'' (''P. angustifolia × P. deltoides'') – lanceleaf cottonwood
**''Populus'' [[Pacific albus]]<ref>{{Cite web |url=http://www.collinsco.com/Library/Archives/ForestrySourceJuly2009.pdf |title=A Forest in the Desert: Hybrid Poplar Plantation Feeds New Mill |access-date=3 October 2019 |archive-date=29 November 2020 |archive-url=https://web.archive.org/web/20201129201055/http://www.collinsco.com/Library/Archives/ForestrySourceJuly2009.pdf |url-status=live }}</ref> (North America)