Psidium guajava Identity & Plant Part
The botanical entity is Psidium guajava L., common guava, a small evergreen tree of the Myrtaceae grown across the tropics. The part used is the leaf, which is leathery, aromatic and strongly veined. Fruit, bark, seed and root are not included. Guava fruit powder and guava leaf extract come from different organs and have little in common beyond the species. The leaf is rich in tannins, flavonol glycosides and phenolic acids, named here as families only, together with a small amount of volatile oil.












