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Malpighia emarginata DC. - syn. Malpighia glabra hort., pro parte; Malpighia punicifolia auct. - Malpighiaceae
acerola, Barbados cherry, West Indian cherry, Acerola, Barbadoskirsche
Evergreen shrub or tree, to 8m high, native from Mexico to Ecuador, exact native range in neotropics obscure, widely cultivated for fruit; leaves opposite, almost sessile, entire; flowers solitare or in umbels up to 4, petals white, pink, or red; fruit a drupe, red or scarlet, depressed-ovoid, 1-3 cm in diameter, acid.
https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=404858
„M.mexicana A. Juse is grown in Mexico for its fruits… M.glabra L. (syn M. punicifolia L.). which has small insipid fruits, and grows from southern USA to South America, may be known by the name semeruco in Venezuela. Both latin names are sometimes incorrectly used as synonyms for M.emarginata, but Memarginata and M.glabra have very different gynoecia…“
[Genetic resources of tropical and sub- tropical fruits and nuts (excluding Musa), IBPGR, Rome 1986, 52-54] http://pdf.usaid.gov/pdf_docs/PNAAW619.pdf
The fruit is small and red-colored at mature stage, quite similar to a cherry, and its pulp is very juicy with a fruity and sweet flavor. It is nutritionally important due to its high vitamin C content. Ascorbic acid is found e.g. 1921mg/100g, determined in the acerola crude concentrated extract. Polyphenols were also very high with 3300mgGAE/100g.
[De Rosso, Veridiana V., and Adriana Z. Mercadante. „The high ascorbic acid content is the main cause of the low stability of anthocyanin extracts from acerola.“ Food Chemistry 103.3 (2007): 935-943] https://www.researchgate.net/profile/Veridiana_De_Rosso2/publication/222532380_The_high_ascorbic_acid_content_is_the_main_cause_of_the_low_stability_of_anthocyanin_extracts_from_acerola/links/00b49535d73bcb01eb000000.pdf