Taxon - Odkazy a literatura
The Plant List 1.1 [tro-29200047]
The Plant List [http://www.theplantlist.org] [jako Euphrasia arctica Lange ex Rostrup]
Datum citace: 31. leden 2014
Kew Science - Plants of the World online 2024-05 [30120204-2]
Kew Science - Plants of the World online [https://powo.science.kew.org], Facilitated by the Royal Botanic Gardens, Kew [jako Euphrasia arctica Lange ex Rostrup]
Datum citace: 1. únor 2025