Cherleria is a genus of flowering plants in the family Caryophyllaceae (the pink family), within the order Caryophyllales. The genus comprises low-growing, cushion- or mat-forming herbs typical of cold, high-altitude, and high-latitude environments. Species are found across the Arctic and in mountainous regions of the northern hemisphere, with the greatest diversity concentrated in the Balkans.
The genus was historically treated as a small segregate or subsumed within closely related genera such as Minuartia. In 2017, a taxonomic revision significantly expanded Cherleria to encompass species previously placed in other genera, reflecting molecular phylogenetic evidence of ecological differentiation and multiple independent colonisations of alpine habitats.
Representative members include Cherleria sedoides, a creeping alpine cushion plant native to mountain ranges of Europe, and Cherleria arctica, a circumpolar species of arctic and subarctic zones. The genus belongs to a group of Caryophyllaceae noted for their ability to colonise open, rocky, and disturbed ground in extreme climates.
Distribution
Cherleria occurs across the Arctic and mountainous areas of the northern hemisphere. The center of generic diversity lies in the Balkans, with individual species extending to circumpolar arctic zones and European alpine systems.
Ecology
Species of Cherleria are adapted to open, rocky, and often nutrient-poor substrates at high altitudes and high latitudes. The genus shows ecological differentiation across its range, with multiple lineages having independently colonised alpine habitats.
Taxonomy Notes
Cherleria was substantially revised in 2017 when it was expanded to include species formerly placed in other genera, including Minuartia. Molecular evidence supports the genus as reflecting ecological differentiation and multiple colonisation events of alpine habitats. It is placed in the family Caryophyllaceae, order Caryophyllales.
