Arenaria montana (Mountain sandwort)
(unranked): Core eudicots
Species: A. montana
Binomial name: Arenaria montana
Common name: Mountain sandwort, Mountain daisy
Arenaria montana is a species of evergreen, perennial, flowering plant native to mountainous regions of south-western Europe, from the Pyrenees to Portugal.
It is a low evergreen perennial forming a loose mat up to 30cm in width. It has small, lanceolate or ovate, green to greyish-green opposite leaves 1 to 3cm in length.
The stems are erect (>20 cm in height) and during late spring early summer 2 to 10 five-petalled flowers (approx 2.5 cm in diameter) are borne on cymes.
This plant has gained the Royal Horticultural Society's Award of Garden Merit.
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/