The acacia tree is a type of tree or shrub belonging to the family Fabaceae. Known for their distinctive yellow or white flowers, acacias are found in tropical and subtropical regions around the world. They are often characterized by their feathery leaves and thorny branches, which help protect them from herbivores. Acacia trees play a vital role in their ecosystems by providing food and shelter for various wildlife. Additionally, they are used in landscaping and for their wood, which is valued for its durability. Some species, like the mimosa tree, are also known for their medicinal properties.