Succulent herb forming stalked rosettes of leaves and growing to 4-30 cm high. Leaves cuneate-obovate, 4-7 cm long, 1.5-2.5 cm wide, grey-violet to grey-white, shortly pointed. Flowers 1-2 cm on stalks 5-12 mm long, white to cream with red dots; spring to summer.
G. amethystinum (Rose) Walter, also sometimes available in nurseries, grows to 15 cm and has a distinct purplish bloom in rosettes 12-15 cm wide, whereas G. paraguayense is usually a taller plant to 30 cm and has leaves with a greyish bloom in rosettes 15-25 cm wide.
Source: (2002). Crassulaceae. In: . Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.