Examining the taxonomy and genetic diversity of closely related species.

These arctic-alpine plants are threatened for a number of reasons, such as anthropogenic climate change, overgrazing and pollution.

With the use of phylogenetic analysis, the taxonomic complexity of the UK saxifrages was highlighted and the need to keep these species separate in cultivation, as to avoid hybridisation, reiterated. The levels of genetic diversity in species in this group may be important for the survival of these species and their ability to cope with changing conditions.