Populus padensis J.Gordon, Dermer & R.Edmonds species synonym

Populus nigra var. flexilis Mérat variety synonym

Populus nigra subsp. italica (Münchh.) Asch. & Graebn. subspecies synonym

Populus ×canadensis var. petrowskiana R.I.Schröd. ex Regel variety synonym

Populus nigra f. italica (Münchh.) A.Andersen form synonym

Populus dilatata var. neapolitana Ten. variety synonym

Populus nigra subsp. italica (Münchh.) Du Roi subspecies synonym

Populus nigra subsp. betulifolia (Pursh) Torr. subspecies synonym

Populus nigra var. charkowiensis (R.I.Schröd.) Hyl. variety synonym

Populus nigra var. betulifolia (Pursh) Wesm., 1868 variety synonym

Populus dilatata Aiton species synonym

Populus italica (Münchh.) Moench species synonym

Populus lombardica Link species synonym

Populus hudsonica F.Michx. species synonym

Populus hudsoniana Desf. species synonym

Populus helvetica Poederlé species synonym

Populus vistulensis Dode species synonym

Populus viridis Lodd. ex Loudon species synonym

Populus versicolor Salisb. species synonym

Populus flexilis K.Koch species synonym

Populus flexibilis Rozier species synonym

Populus fastigiata Foug. species proparte synonym

Aigiros nigra (L.) Nieuwl. species synonym

Populus elaverensis Dode species synonym

Populus thevestina Dode species synonym

Populus sosnowskyi Grossh. species synonym

Populus croatica Waldst. & Kit. ex Besser species synonym

Populus charkowiensis R.I.Schröd. species synonym

Populus caudina Ten. species synonym

Populus rubra Poir. species synonym

Populus pyramidata Moench species heterotypic synonym

Populus pyramidalis Salisb. species synonym

Populus pubescens var. pendula (Tucovic) Jovan. & Tucovic variety synonym

Populus pubescens var. caudina (Ten.) Jovan. & Tucovic variety synonym

Populus betulifolia Pursh species synonym

Populus bethmontiana Dode species synonym

Populus polonica Loudon species synonym

Populus pannonica Kit. ex Besser species synonym

Populus nolestii Dippel species synonym

Populus nigra var. vistulensis (Dode) Jovan. & Tucovic variety synonym

Populus nigra f. torulosa N.Janjic form synonym

Populus nigra var. sosnowskyi (Grossh.) Makaschv. variety accepted

Populus nigra f. pseudocaudina N.Janjic form synonym

Populus nigra var. pendula (Mill.) Jovan. & Tucovic variety synonym

Populus nigra f. parvifolia N.Janjic form synonym

Populus nigra var. narentana N.Janjic variety synonym

Populus nigra var. hudsonica C.K.Schneid. variety synonym

Populus nigra var. helvetica (Poederlé) Poir. variety synonym

Populus nigra f. grandifolia N.Janjic form synonym

Populus nigra subsp. betulifolia (Pursh) W.Wettst. ex Buttler & Hand subspecies synonym

Populus afghanica var. cuneata Z.Wang & Chang Y.Yang variety synonym

Populus neapolitana (Ten.) Ten. species synonym

Populus nigra subsp. betulifolia (Pursh) Dippel subspecies synonym

Populus ×canadensis var. petrowskiana R.I.Schröd. variety homotypic synonym

Populus fastigiata Poir. species proparte synonym

Populus nigra var. grandifolia N.Janjic variety synonym

Populus nigra var. betulifolia (Pursh) Torr. variety accepted

Populus nigra var. thevestina (Dode) Bean variety accepted

Populus nigra var. sinensis Carrière variety doubtful

Populus nigra var. pyramidalis (Rozier) Spach variety synonym

Populus alba var. croatica (Waldst. & Kit. ex Besser) Wesm. variety synonym

Populus nigra var. nigra variety accepted

Populus nigra subsp. nigra subspecies accepted

Populus afghanica (Aitch. & Hemsl.) C.K.Schneid. species synonym

Populus afghanica var. afghanica variety synonym

Populus nigra var. italica (Moench) Koehne variety accepted

Populus pyramidalis Rozier species synonym

Populus nigra subsp. neapolitana (Ten.) Asch. & Graebn. subspecies synonym

Populus nigra var. dilatata (Aiton) Merrem variety synonym

Populus nigra f. italica (Münchh.) C.W.Christ. form synonym

Populus tajikistanica Kom. species synonym

Populus gracilis Grossh. species synonym

Populus fastigiata Poir. species proparte synonym

Populus nigra subsp. betulifolia (Pursh) Wettst. subspecies synonym

Populus fastigiata var. plantierensis Simon-Louis variety synonym

Populus nigra subsp. caudina (Ten.) Bugala subspecies synonym

Populus vistulensis Loudon species synonym

Populus nigra subsp. thevestina (Dode) Maire subspecies synonym

Populus nigra var. caudina (Ten.) Nyman variety accepted

Populus nigra var. elegans L.H.Bailey variety synonym

Populus viminea Dum.Cours. species synonym

Populus nigra var. neapolitana (Ten.) Nyman variety synonym

Populus nigra subsp. neapolitana (Ten.) Maire subspecies synonym

Populus nigra var. afghanica Aitch. & Hemsl. variety accepted

Populus viridis Lodd. species homotypic synonym

Populus croatica Waldst. & Kit. species homotypic synonym

Populus ×petrowskiana Schröd. species homotypic synonym

Populus nigra var. virginiana Dambourney ex Foug. variety accepted

Populus usbekistanica subsp. tajikistanica (Kom.) Bugala subspecies synonym

Populus nigra subsp. flexibilis (Roz.) Kamelin subspecies synonym

Populus nigra var. italica Münchh. variety synonym

Populus afghanica var. tajikistanica (Kom.) Z.Wang & ChangY.Yang variety synonym

Populus nigra var. italica Du Roi variety synonym

Populus nigra var. virginiana Dambourney variety homotypic synonym

Populus pannonica Kit. species homotypic synonym

Populus nigra subsp. pyramidalis (Rozier) Celak. subspecies synonym

Populus ×petrowskiana Schröd. ex Dippel species synonym