For lists and descriptions of cultivars see the relevant horticultural groupings. The numerous cultivars, hybrids and wide range of plants available make the construction of a thorough key of little value.

Source: Spencer, R. (2002). Rosaceae. In: Spencer, R.. 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.