These have a fine fragrance and are an ancient group that is nowadays generally divided into two groups: Summer Damasks, which flower once in summer; and the Autumn Damasks, which flower a second time in autumn.
Source: (2002). Rosaceae. 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.
