What plant containing single-seeded, blue-black drupes is part of the Manilkara zapota family?
Manilkara zapota Manilkara zapota, commonly known as the sapodilla ( ), is a long-lived, evergreen tree native to southern Mexico, Central America and the Caribbean. An example natural occurrence is in coastal Yucatán in the Petenes mangroves ecoregion, where it is a subdominant plant species. It was introduced to the Philippines during Spanish colonization. It is grown in large quantities in Pakistan, India, Thailand, Malaysia, Cambodia, Indonesia, Bangladesh and Mexico.
Macroptilium atropurpureum Macroptilium atropurpureum, commonly referred to as "purple bush-bean", or "siratro" is a perennial legume recognized by its climbing dense green vines and deep purple flowers. The plant is indigenous to the tropical and subtropical regions of North, Central and South America, as far north as Texas in the USA and as far south as Peru and Brazil, but it can be found in many tropical regions around the world. Rich in protein, "Macroptilium atropurpureum" is commonly used for cattle pastures intercropped with grass, used in hay, or as a ground cover to prevent soil erosion and to improve soil quality.