Distribution and current status of mountain hawkweeds (Hieracium) populations in Mt. Králický Sněžník

Abstract Central European mountains are important diversity centers of the genus Hieracium . Here, we provide an account of the genus in supramontane to subalpine zones of summit parts of Mt. Králický Sněžník, based on a detailed field inventory in 2021 and 2022. Ten species were recorded ( H. chrysostyloides, H. moravicum, H. nigritum, H. nivimontis, H. obscuratum, H. schustleri, H. stygium, H. uechtritzianum, H. murorum, H. lachenalii ), of which two ( H. moravicum a H. obscuratum ) were found here for the first time. New data about their ecology and habitat requirements are given and causes of their threat are discussed. The study also contains a summary of historical data relating to the locality.