Eurycoma longifolia is a small, evergreen tree with spirally arranged, pinnate leaves 20-40 cm (8-16 inches) long with 13-41 leaflets. The flowers are dioecious, with male and female flowers on different trees; they are produced in large panicles, each flower with 5-6 very small petals. The fruit is green ripening dark red.
The plant parts have been traditionally used for its antimalarial, aphrodisiac, anti-diabetic, antimicrobial and antipyretic activities.