Q.Which powdered seeds are used instead of coffee ?

Powdered seeds of Cola nitida (kola nut) are used as a caffeine-rich substitute for coffee.

Cola nitida, commonly called the kola or cola nut tree (family Sterculiaceae/Malvaceae), is native to the tropical rainforests of West Africa. Its seeds (kola nuts) contain caffeine along with the related alkaloid kolanin, giving them a stimulant, mildly bitter character similar to coffee. The nuts are chewed fresh as a masticatory stimulant in many West African cultures, and when dried and powdered they are brewed or otherwise consumed as a beverage in place of coffee. Kola nut extract was also historically used to flavour and provide caffeine to early cola soft drinks. Among the other options, Ilex paraguariensis (yerba mate) supplies its stimulant from powdere …