Guava, Latin name: Psidium guajava Linn. Myrtle family, guava tree, up to 13 meters high; bark is smooth, gray, flaky and peeling; twigs are ribbed and hairy. The leaves are leathery, oblong to elliptical, the apex is acute or blunt, the base is nearly round, the upper part is slightly rough, the lower part is hairy, often sunken, and the veins are obvious; the calyx tube is bell-shaped, hairy, and the calyx cap is nearly round. Shape, irregularly split; white; ovary inferior, connate with calyx, style and stamens as long. The berries are spherical, oval or pear-shaped, with persistent sepals at the top. The flesh is white or yellow, the placenta is enlarged, fleshy, and light red; there are many seeds.