Our research focuses on biosystematics, phylogeography and biogeography of (mainly, but not exclusively) Alpine plant groups. In contrast to biota of tropical and other ecosystems, alpine biotas are regarded as rather young as alpine ecosystems emerged not earlier than towards the end of the Tertiary or the dynamic Ice Ages. However, a large part of plant biodiversity is found in mountains today, which make the Alpines very interesting study systems. Questions addressed include the significance of refugia in plant diversification, studying polyploid and hybrid evolution in relation to habitat conditions, conservation biology and genetics of endangered plants, and DNA-Barcoding.