Poplar Lumber Board (S4S), Solid, Hardwood - 6 in x 3.5 in x 0.75 in (Actual Size) - Finished on Four Sides - USA Source - Great for Small Home Projects and Renovation - - Amazon.com
WoodSense: Spotlight on Yellow Poplar
Yellow poplar | The Wood Database (Hardwood)
Poplar Dimensioned Hobby Boards 3/4" x 5.5" x 3' - Woodworkers Source
What To Know About Poplar Wood | The Family Handyman
Poplar 1/2" Thin Lumber - Woodworkers Source
What is Popular Wood? | Definition of Popular Wood