银合欢原产墨西哥西南部及中美洲的危地马拉、洪都拉斯、萨尔瓦多,分布在北纬15-17°。约在两千年前玛雅族在中美洲曾广泛利用银合欢。大约在公元1600年,银合欢陆续从墨西哥传入菲律宾,从那时起银合欢在东南亚及太平洋地区,包括印尼、菲律宾、美国夏威夷、毛里求斯、澳大利亚北部等地广为种植,现遍 Acacia native to southwestern Mexico and Central America, Guatemala, Honduras, El Salvador, located at latitude 15-17 °. The Mayan people made extensive use of silver in Central America about two thousand years ago. Around 1600 AD, Acacia came in from Mexico to the Philippines, and since then Acacia has been planted extensively in Southeast Asia and the Pacific, including Indonesia, the Philippines, the United States, Hawaii, Mauritius and northern Australia, all over the world