|at Universidade de Brasília, Brazil|
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Tibouchina heteromalla, known by the common name silverleafed princess flower in English is a species of evergreen flowering plant in the genus Tibouchina of the family Melastomataceae. It is native to Brazil.
Tibouchina heteromalla reaches an average height of 4–6 feet (1.2–1.8 m), with a maximum of about 8–10 feet (2.4–3.0 m) in its native habitat. The branching stem is woody and the large, silvery green leaves are simple, ovate, velvety in texture, and oppositely arranged. The inflorescence is a panicle of several purple flowers with five petals. The plant has 4–6 inches (10–15 cm) long leaves, with prominent veins that are puffed up in the middle and old leaves will often turn a beautiful orange color just prior to dropping off. 
The plant is cultivated as an ornamental for its showy foliage and purple flowers. It is sensitive to cold but can tolerate a light frost.
- Catalogue of Life
- Kartuz: Tibouchina grandifolia
- "Tibouchina heteromalla". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 10 December 2015.
- "Tibouchina heteromalla". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 23 January 2018.
- "Tibouchina heteromalla, Silver leafed Princess Flower, Shrub, [Tibouchina grandifolia, Hort]". Plant Information. Retrieved 2020-02-08.
- Porembski, S., et al. (1998). Diversity and ecology of saxicolous vegetation mats on inselbergs in the Brazilian Atlantic Rainforest. Diversity and Distributions 4(3) 107–19.
- Renner, S. S. (1989). A survey of reproductive biology in neotropical Melastomataceae and Memecylaceae. Annals of the Missouri Botanical Garden.
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