This excellent group of rock garden plants is known as the section Ligulatae, or more commonly as the silver or encrusted saxifrages, in recognition of the deposits of lime that line the leaves. They all have rosettes, large or small depending on the variety, and have relatively large panicles of flowers, usually white. They come from rocky places in the mountains, some on limestone and some on acid rocks.

Saxifraga 'Rachel' is a new variety of silver saxifrage, rather like 'Lantoscana Superba'. It has rosettes of slender leaves, heavily lime-encrusted, which can make a dense clump, and has long, arching, rusty red-brown stems, with lots of pure white flowers.