瓦氏紫薇

Vachellia farnesiana，以前被称为相思树，通常被称为针刺布什，之所以如此命名是因为沿其树枝分布着无数刺。 While the point of origin is Mexico and Central America the species has a pantropical distribution incorporating Northern Australia and Southern Asia.It remains unclear whether the extra-American distribution is primarily natural or anthropogenic.虽然起源地是墨西哥和中美洲，但该物种具有北澳大利亚和南亚的泛热带分布，目前尚不清楚美洲以外的分布主要是自然的还是人为的。 It is deciduous over part of its range,but evergreen in most locales.The species grows to a height of up to 8 metres and has a life span of about 25–50 years.它在部分范围内是落叶的，但在大多数地方是常绿的。该物种生长到高达XNUMX米的高度，寿命约为XNUMX至XNUMX年。