Schemes including Corylus americana

• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.135795) Corylus americana
• New England Wild Flower Society's Flora Novae Angliae Corylus americana
• IUCN Red List of Threatened Species. Version 2014.3 (194257) Corylus americana
• GBIF (2876060) Corylus americana