Taxon - Odkazy a literatura
IUCN Red List of Threatened Species 2024-1 [126334693]
IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [jako Encephalartos ferox subsp. emersus P.Rousseau, Vorster & A.E.van Wyk]
Datum citace: 29. leden 2024
Kew Science - Plants of the World online 2024-05 [77146832-1]
Kew Science - Plants of the World online [https://powo.science.kew.org], Facilitated by the Royal Botanic Gardens, Kew [jako Encephalartos ferox subsp. emersus P.Rousseau, Vorster & A.E.van Wyk]
Datum citace: 1. únor 2025