Myrciaria dubia, commonly known as camu-camu, caçari, araçá-d'água, or camocamo, is a species of plant in the family Myrtaceae. It is a small bushy riverside tree from the Amazon rainforest in Peru and Brazil, which grows to a height of 3–5 m (9.8–16.4 ft) and bears a red/purple cherry-like fruit. It is a close relative of the false jaboticaba and the guavaberry or rumberry. As much as 2 to 3% of the fresh fruit by weight is vitamin C.

Myrciaria floribunda, commonly known as cambuizeiro, guavaberry or rumberry, is a species of plant in the family Myrtaceae. It can be found across South and Central America and the West Indies in dry or moist coastal woodlands, up to 300 metres above sea level. The guavaberry, which should not be confused with the guava, is a close relative of camu camu.