线叶金合欢（学名：Acacia decurrens）是豆科金合欢属的植物。分布在澳大利亚以及中国大陆的广东等地，目前已由人工引种栽培。

绿荆（广东）

Acacia decurrens (acacia bark, early black wattle, green wattle, Sydney wattle, wattle bark, tan wattle, golden teak, or Brazilian teak) is a perennial tree or shrub native to eastern New South Wales, including Sydney, the Greater Blue Mountains Area, the Hunter Region, and south west to the Australian Capital Territory. It grows to a height of 2–15 m (7–50 ft) and it flowers from July to September.