Rebutia fiebrigii, the orange crown cactus or flame crown, is a species of flowering plant in the cactus family that is native to exposed rocky plateaux in the Bolivean Andes, at altitudes of NaNm (-2,147,483,648feet) above sea level. It consists of a solitary ball some 15cm (06inches) in diameter, covered in tubercles and silky hairs, with brilliant orange daisy-like flowers. In time these balls multiply to form mounds.[1]
A highly ornamental plant, this is a popular subject for cultivation in a well-drained, dry, sheltered location with plenty of sunlight, which does not freeze in winter. The cultivars 'Donaldiana'[2] and the smaller 'Muscula' ('Little Mouse')[3] [4] have gained the Royal Horticultural Society's Award of Garden Merit.