Threats to the species include invasive plant species such as glory bush (Tibouchina herbacea) and Vaseygrass (Paspalum urvillei), and feral pigs, which inflict severe damage upon the ecosystem.
Tibouchina heteromalla, known by the common names silverleafed princess flower in English and quaresmeira in Brazilian Portuguese, is a species of evergreen flowering plant in the genus Tibouchina of the family Melastomataceae.
Nematodes can affect Tibouchina and over watering can contribute to mushroom root-rot.