Biology, life sciences Cyclamen graecum DNA barcoding Gini–Simpson Helichrysum italicum MODIS Mediterranean Mediterranean climate Mediterranean plants Research & information: general Shannon entropy allelochemicals aridity index biological activity climate change clinical studies drought effective number of species elongation enhanced vegetation index forest berries genotype selection geophyte hualo inter-annual variability internal use leaf hydraulic conductance machine learning multifaceted evaluation neglected and underutilized plants