The apparent medicinal qualities of this West African tree have led to hundreds of scientific studies, which have found that it possess a relative abundance of biologically important compounds. It can reach up to 22 m (72 ft) in height. Its flowers are pinkish cream, turning to orange, and the four-winged fruit is very persistent and pungent. It is a cherished spice in Nigerian dishes (especially Banga soup).
One kilogram ≈ 4000 seeds