Devils Fig Pea Eggplant

This could be Solanum torvum, Devil’s fig also called pea eggplant and Turkey berry, a large tropical perennial weed used for rootstock in commercial eggplant production. The leaves, flowers and fruit are consistent with your photo, and your suggestion of a tropical origin of the plant help to point in that direction. If it is Solanum torvum it is from the American tropics but widely distributed throughout the tropical world. One thing to realize is that while we are fairly certain that this is a plant in the genus Solanum, a member of the nightshade family as are tomatoes, eggplants and other vegetables, many other Solanums have highly poisonous fruit. So DO NOT EAT THE FRUIT. We suggest that you take specimens of the flowers, fruits and leaves to local experts for additional assessment.