Commemorating William Kerr (d. 1814), gardener from the Royal Bot. Gds, Kew, UK, who collected plants in China, Java and the Philippines.

For a description of the genus see the species.

Grown for the attractive arching stems, formal leaves and clear yellow flowers.

1 genus containing 1 species from China, Japan and E Asia.

Softwood cuttings, layers and division.

Leaves long-pointed, lanceolate, strongly toothed; flowers golden yellow; fruit a group of achenes with persistent calyx.

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.