Abstract
Hieracium busambarense (Asteraceae), a new species from calcareous-dolomite cliffs of Rocca Busambra (western Sicily, Italy) is described and illustrated here.
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Acknowledgments
The authors wish to thank Dario Cusimano (University of Palermo, Dept. of Scienze Agrarie e Forestali) for the support to the research. Funding by Università degli Studi di Palermo (ex 60%) is also acknowledged.