Taxon - Links and literature
Kew Science - Plants of the World online 2024-05 [60436254-2]
Kew Science - Plants of the World online [https://powo.science.kew.org], Facilitated by the Royal Botanic Gardens, Kew [as Crataegus L.]
Data retrieved on: 1 February 2025
Paleobiology Database [157341]
Paleobiology Database [https://paleobiodb.org/] [as Crataegus Linnaeus, 1753]
Data retrieved on: 13 November 2019
The Interim Register of Marine and Nonmarine Genera [1072619]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Crataegus Linnaeus, 1753]
Data retrieved on: 8 December 2019
The Interim Register of Marine and Nonmarine Genera [1266698]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Oxyacantha Medikus, 1789]
Data retrieved on: 5 January 2020
The Interim Register of Marine and Nonmarine Genera [1279045]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Phaenopyrum M.J. Roemer, 1847]
Data retrieved on: 5 January 2020
C. Ulloa et al. (2017): An integrated assessment of the vascular plant species of the Americas, Science. 358. 1614-1617 [as Crataegus L.]Data retrieved on: 19 September 2019
Máca J. (2017): Neglected Eriophyoid Mites with Conspicuous Galls: Concealed Biodiversity, Živa 3/2017, 133 [as Crataegus]