Mauve (H2) flowers, VIII–X; grey-green foliage in summer, turning dull bronze in winter; low spreading habit; height 10–15cm; spread 21–25cm.
Wild-collected; found by Miss Anne Moseley about 1929 on The Lizard, Cornwall, England (cf. Beijerinck 1940); introduced by W. E.Th. Ingwerson (Birch Farm Nursery, Gravetye, East Grinstead, Surrey).
Named after Miss Moseley; she was a nurse but the epithet "Sister" was the appellation used by her own sister.