Sarothamnus scoparius). A well branched, erect shrub 2m or more high. Leaflets simple and trifoliate, short-lived. Flowers rich golden yellow, 1.6-2cm long, singly or in pairs from all the upper nodes in late spring. Western, southern and central Europe, on heaths, dunes, mountain slopes, open woods and disturbed ground. Much too large for the rock garden, but mentioned because of the sea cliff and coastal dune variant C.s. subsp. maritimus, syn. prostratus, a mat-forming plant to 15 cm or more high by l-2m across.