Eurycoma longifolia Jack (aka, longjack or Tongkat Ali or Pasak Bumi) is a flowering plant in the family Simaroubaceae, native to Indonesia and Malaysia.
Tongkat ali ( pasak bumi) is a small evergreen tree growing to 15 m (49 ft) tall, 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, 1-2 cm long and 0.5-1 cm broad.
Uses
Eurycoma longifolia (pasak bumi or tongkat ali) has become popular for its alleged testosterone-enhancing properties. It has therefore been included in some herbal supplements for bodybuilders. Historically, South East Asia has utilised the herb for its suggested antimalarial, antipyretic, antiulcer, cytotoxic and aphrodisiac properties.