Malpighia punicifolia - Dwarf Barbados-Cherry, Dwarf Acerola, Dwarf Pink Mound.
This dwarf form of Acerola makes a wonderful low-growing shrub or beautiful bonsai tree with edible fruit. Profuse bloomer, it is also a nice ornamental.
Due to its shallow and smaller root system, Acerolas can be interplanted with other crops more closely than many trees. Acerolas grows in marl, limestone, clay and other heavy soils as long as it drains well. Has the highest vitamin C content of any fruit. 1 Cherry is equal to 12 oranges. Used in jellies, jams, freezes without losing its vitamin C content. The plant is drought tolerant and easy to grow.
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Article about Barbados CherrySee
Growing Barbados Cherry in container