Neighbour-joining phylogenetic tree, based on ITSĀ sequences of selected orchids with geographic origins (green: Europe; red: Asia) as inferred from Suppl. material 7.

 
  Part of: Aghayeva P, Cozzolino S, Cafasso D, Ali-zade V, Fineschi S, Aghayeva D (2021) DNA barcoding of native Caucasus herbal plants: potentials and limitations in complex groups and implications for phylogeographic patterns. Biodiversity Data Journal 9: e61333. https://doi.org/10.3897/BDJ.9.e61333