López, Eusebio, and Juan Antonio Devesa. “Taxonomic Notes on Genus Centaurea (Asteraceae) in the Iberian Peninsula. Peninsula. C. Paniculata, C. Hanryi and C. Diffusa”. Anales del Jardín Botánico de Madrid 67, no. 2 (December 30, 2010): 113–126. Accessed April 15, 2024. https://rjb.revistas.csic.es/index.php/rjb/article/view/347.