Supplementary material 1 from: Domina G, Di Gristina E, Barone G (2022) A new species within the Centaurea busambarensis complex (Asteraceae, Cardueae) from Sicily. Biodiversity Data Journal 10: e91505. https://doi.org/10.3897/BDJ.10.e91505

Morphological characters used for the statistical analysis (mean in mm)