Clausena lansium Skeels

Trees to 12 m tall. Leaves 5-11-foliolate; petiolules 4-8 mm; leaflet blades ovate to ovate-elliptic, 6-14 × 3-6 cm, midvein often pubescent, base rounded to broadly cuneate, margin repand to crenulate. Inflorescences terminal, paniculate. Flowers globose in bud. Calyx lobes broadly ovate, ca. 1 mm. Petals oblong, ca. 5 mm. Stamens 10; filaments linear, basal portion slightly expanded. Disk short. Ovary hirsute. Fruit pale yellow, globose, ellipsoid, or broadly ovoid, 1.5-3 × 1-2 cm, 1-4-seeded. Fl. Apr-May, fr. Jul-Aug (fl. and fr. ca. 1 month earlier in Hainan). 2n = 18.

It is native to S. China. A subtropical fruit. It can withstand light frosts. They can grow in dry situations. It can grow on a range of well drained soils. It can grow in acid and alkaline soils. Iron chlorosis occurs on alkaline soils. In the Cairns Botanical Gardens. It suits hardiness zones 10-12. In Sichuan and Yunnan.

The fruit is eaten fresh or used in jellies. The skin and seeds are not eaten. The fruit can be preserved, dried, made into jams, pies or drinks. The leaves are used in curries. The juice is used for making a fermented champagne like drink.

Plants can be grown from seed. Trees can easily be grown from softwood cuttings, air layering or grafting. As fruit occur near the tips of the branches pruning must only be done carefully.