Pleroma urvilleanum, synonym Tibouchina urvilleana,[1] is a species of flowering plant in the family Melastomataceae, native to Brazil.

Common names include: The specific epithet urvilleanum commemorates the 19th-century French explorer and botanist Jules Dumont d'Urville.

Clusters of brilliant purple flowers up to 10 cm (4 in) in diameter, with black stamens, are borne throughout summer and autumn.

[5] Under the synonym Tibouchina urvilleana, Pleroma urvilleanum has gained the Royal Horticultural Society's Award of Garden Merit.

[2][6] With a minimum temperature of 3 °C (37 °F), it requires some winter protection, and in temperate areas is often grown in a conservatory.