Commemorating J.D. Choisy (1799–1859), a Swiss botanist and philosopher.

Shrubs. Leaves opposite, palmately divided with 3-15 leaflets. Flowers in terminal or axillary clusters, occasionally solitary. Petals 5, white. Stamens 10 in 2 whorls. Ovary of 5 carpels united at the base. Fruit a 3-5-valved capsule.

Grown for the fragrant flowers and neat ornamental foliage.

Cuttings.

Palmately divided leaves.

6 species from SW USA and Mexico.

C.M. Muller (1940).

Source: Spencer, R. (2002). Rutaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.