Psidium amplexicaule, which is commonly known as mountain guava, is a species in the family Myrtaceae that is native to the Caribbean (Hispaniola, Jamaica, Puerto Rico, and the Leeward Islands) and northeastern Brazil. It is rarely found in a moist limestone forest at 100–600 feet elevation on the north coast of Puerto Rico. This plant can also be found on islands such as St. Thomas and St. John in the United States Virgin Islands and in Tortola and Virgin Gorda of the British Virgin Islands.

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