Silver wattle, also known as Acacia dealbata, is a plant species native to southeastern Australia. It is commonly referred to as the blue-wattle, blue-leafed wattle, and mimosa. The silver wattle is a small to medium-sized evergreen tree with gray-green leaves that are feathery and delicate. The tree is known for its brilliant yellow flowers that bloom in late winter and early spring. Other synonyms for silver wattle include silver mimosa, fluffy mimosa, and white wattle. This tree species has been widely introduced in many parts of the world, including Europe, South America, and Asia, for its ornamental value and as a source of nitrogen fixation in soil.