melastome

Melastome is a genus of flowering plants belonging to the family Melastomataceae. The name is derived from the Greek words “melas” (black) and “stoma” (mouth), referring to the dark-colored bases of the petals in many species. The genus is primarily distributed in the tropical and subtropical regions of Southeast Asia, the Philippines, and parts of the western Pacific, with some species extending into mainland Southeast Asia and northern parts of Australia.

Species within Melastome are typically woody shrubs or small trees, bearing opposite leaves that are often marbled or variegated. The flowers are usually trumpet‑shaped and display a distinctive arrangement of stamens that can be a key identifying feature. Many species are known for their bright, enticing purple or blue flowers, and some are cultivated as ornamental plants in gardens for their striking foliage and flowering displays.

Ecologically, Melastome species occupy a range of habitats from lowland rainforests to mountainous cloud forests. They are often associated with moist, well‑drained soils and can be found in both primary and secondary forest environments. Several species serve as larval host plants for certain butterflies and moths, and they may have mutualistic relationships with pollinating insects such as bees and flies.

Human uses of Melastome are mainly ornamental; a few species are also employed in traditional medicine for their purported anti‑inflammatory and antimicrobial properties. Conservation status varies among species, with habitat loss in some areas posing potential threats to their survival. The genus is of botanical interest due to its diverse morphologies and the ecological roles it plays in tropical ecosystems.