alpine saxifrage, encrusted saxifrage or silver saxifrage (saxifraga paniculata) with dense rosette of leathery, flat

saxifraga paniculata alpine saxifrage close closeup cluster decorative detailed encrusted environment fine flat flowerbed foliage garden gardening green growing leathery lifelong limeencrusted livelong macro nature ornamental outdoors plant rockery rosette silver spring stiff texture toothed vegetation white mountain dense leaves leaf margins