The fruit is edible, with the longan (D. longan) being grown commercially for fruit production.
The species are large evergreentrees growing to 25–40 m tall, with pinnateleaves. The flowers are individually inconspicuous, produced in large panicles. The fruit is an oval drupe 3–5 cm long containing a single seed surrounded by a translucent crisp, juicy layer of fruit pulp and a thin but hard orange or red skin.
^
Leenhouts, Pieter W. (1994). "Dimocarpus Lour.". In Adema, F.; Leenhouts, P. W.; van Welzen, P. C. (eds.). Sapindaceae. Series I, Spermatophyta : Flowering Plants. Vol. 11. Leiden, The Netherlands: Rijksherbarium / Hortus Botanicus, Leiden University. pp. 511–519. ISBN90-71236-21-8. Retrieved 5 Dec 2013. {{cite book}}: |work= ignored (help)
^"Dimocarpus Lour". Germplasm Resources Information Network. United States Department of Agriculture. 2006-03-29. Retrieved 2010-01-19.