Acerola (Malpighia glabra), also known as Barbados Cherry or Wild Crapemyrtle, is a tropical fruit-bearing shrub or small tree in the family Malpighiaceae, native to the West Indies and northern South America. It grows to 3 m tall, with a dense, thorny crown. The leaves are evergreen, simple ovate-lanceolate, 5-10 cm long, with an entire margin. The flowers are produced in umbels of 2-5 together, each flower 1-1.5 cm diameter, with five pink or red petals.
The fruit is bright red, 1 cm diameter, containing 2-3 hard seeds. It is sweet and juicy, and very high in vitamin C and other nutrients. Although resembling a cherry, it is unrelated to the true cherry (Prunus).
In the 1950s, a manufacturer of baby food decided that apple juice was milder for infants than orange juice. The company claimed that a drop of acerola juice in an 8 oz. can of apple juice provided the amount of vitamin C of an equal amount of orange juice.
In Puerto Rico, the acerola is so prized that custom officials exercise considerable precaution to prevent exporting of acerola cuttings.