D.S. Devey m.fl. (2008). «Friends or relatives? Phylogenetics and species delimitation in the controversial European orchid genus Ophrys». Annals of Botany. 101 (3): 385–402. ISSN1095-8290. doi:10.1093/aob/mcm299.
plantsoftheworldonline.org
«Ophrys». Plants of the World Online. Kew Science. Besøkt 7. september 2021.
worldcat.org
D.S. Devey m.fl. (2008). «Friends or relatives? Phylogenetics and species delimitation in the controversial European orchid genus Ophrys». Annals of Botany. 101 (3): 385–402. ISSN1095-8290. doi:10.1093/aob/mcm299.