Schemes including Populus tremuloides

• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.142643) Populus tremuloides
• Calflora (6799) Populus tremuloides
• New England Wild Flower Society's Flora Novae Angliae Populus tremuloides
• CONABIO Populus tremuloides
• GBIF (3040215) Populus tremuloides