Definition
Black wattle (*Acacia mearnsii*) is a fast-growing tree native to Australia. It's known for its dark bark and fragrant yellow flowers. This tree is often used in reforestation and soil stabilization projects. The bark is a source of tannin, used in leather production. It's an adaptable species, though it can become invasive in some regions. Think of it as the eco-warrior of trees, with a bit of a wild side. π³