Botanist, Larry Stritch (National; Wo, USDA Forest Service-; Staff, Range; 3S; Street, 201 14th; Assessments), SW Washington DC 20250/ Conifer (23. februar 2018). »IUCN Red List of Threatened Species: Rhus typhina«. IUCN Red List of Threatened Species. Pridobljeno 11. avgusta 2021.