Taxon - Odkazy a literatura
IUCN Red List of Threatened Species 2024-1 [42147]
IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [jako Dioon purpusii Rose]
Datum citace: 29. leden 2024
Kew Science - Plants of the World online 2024-05 [80655-2]
Kew Science - Plants of the World online [https://powo.science.kew.org], Facilitated by the Royal Botanic Gardens, Kew [jako Dioon purpusii Rose]
Datum citace: 1. únor 2025
C. Ulloa et al. (2017): An integrated assessment of the vascular plant species of the Americas, Science. 358. 1614-1617 [jako Dioon purpusii Rose]Datum citace: 19. září 2019