lilac `pyrenean whitlow grass` flowers - petrocallis pyrenaica

alpine alps april arboretum aubretia beauty bloom blossom botanic botanical botany brassicaceae bunch cluster draba europe european family flora flowers four gallen garden grass green group lagascae leaf light lilac mountain natural nature park petal petrocallis plant purple pyrenaica pyrenean pyrenees rock saint spring steinschmueckel swiss switzerland violet whitlow