Spreading to prostrate perennial with stems to 15 cm long. Leaves obovate to oblanceolate, mostly 3-7 cm long, flattened with a horny margin, rounded at the tip but often with a small point, grey-green, usually with dark purple blotches. Flowers 8-11mm long, pale yellow-green. Anthers not protruding from the flowers.
This species is often confused in horticulture with A. trigynus (Burchell) von Pullnitz as the leaves are similar, although those of A. maculatus are generally more than 4 cm long and those of A. trigynus less than 4 cm long; floral differences are given in the key.
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.