Taxon - Links and literature
Kew Science - Plants of the World online 2024-05 [33158-1]
Kew Science - Plants of the World online [https://powo.science.kew.org], Facilitated by the Royal Botanic Gardens, Kew [as Helleborus Tourn. ex L.]
Data retrieved on: 1 February 2025
The Interim Register of Marine and Nonmarine Genera [1035308]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Helleborus Linnaeus, 1753]
Data retrieved on: 8 December 2019
