↑Meikle, R. D. (1984). Willows and Poplars of Great Britain and Ireland. BSBI Handbook No. 4. ISBN 0-901158-07-0.
12<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.