Links to research, articles and websites about the Smith Falls hybrid aspens listed below:
“Genetic, morphological, and spectral characterization of relictual Niobrara River hybrid aspens (Populus × smithii)” by Nicholas John Deacon, Jake Joseph Grossman, Anna Katharina Schweiger, Isabella Armour and Jeannine Cavender‐Bares
“Drought and freezing vulnerability of the isolated hybrid aspen Populus x smithii relative to its parental species, P. tremuloides and P. grandidentata” by Nicholas J. Deacon, Jake J. Grossman and Jeannine Cavender-Bares
“Population Condition of Populus × smithii, a Pleistocene Relict Aspen of the Niobrara River Valley, Nebraska, USA” by James M. Robertson, Alex R. Cahlander-Mooers, Cliff H. Summers and Mark D. Dixon
“Shoot and root development and dry matter partitioning in Populusgrandidentata, P. tremuloides, and P. × smithii” by Gregory L. Reighard and James W. Hanover
“Effects of Management Treatments on Regeneration of a Geographically Disjunct, Relictual Hybrid Aspen (Populus xsmithii) Population in the Central Great Plains, USA” by James M. Robertson, Alex R. Cahlander-Mooers and Mark D. Dixon
“Paper birch decline in the Niobrara River Valley, Nebraska: Weather, microclimate, and birch stand conditions” by Ester D. Stroh and Joel P. Miller
Nature Serve Explorer
The Hybrid Mistique by Jake J. Grossman
Hybrid Smith Aspens: An Ice Age Relic by Aviva Saadatfar
Smith Falls State Park Forest Enhancement Project For Aspen by Mike Groenewold
Niobrara National Scenic River: Niobrara’s Unusual Aspens