Morphological variability and differentiation of selected Achillea species (sections Achillea sensu lato and Anthemoideae) from Serbia

Jelena Stojkovic, Zorica Mitić, Bojan Zlatković

Abstract


In the present study, morphological variability and differentiation of 13 Achillea species, including 11 from the Achillea section Achillea sensu lato (A. chrysocoma, A. clypeolata, A. coarctata, A. collina, A. crithmifolia, A. distans, A. grandifolia, A. millefolium, A. nobilis, A. pseudopectinata and A. vandasii) and two species from the Achillea section Anthemoideae (A. ageratifolia and A. lingulata) from Serbia were analyzed. Morphometric analysis included a total of 9 quantitative characteristics from the vegetative and reproductive plant parts. Multivariate statistical analyses reflected almost clear differentiation between species from two studied sections whereby ligulate floret length and stem leaf segment length had the greatest influence for their distinction. Thus, the section Achillea sensu lato was characterized by significantly shorter ligulate florets and longer segments of stem leaf compared to the section Anthemoideae. Furthermore, A. grandifolia featured the longest segments of stem leaf and showed considerable separation from all other species within the section Achillea sensu lato. It could be concluded that the selected set of morphological characteristics in the present study mainly positioned the studied species in accordance with the current infrageneric classification of Achillea.


Keywords


Achillea, morphometry, multivariate statistical analysis, Balkan Peninsula

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References


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