black locust

black-locust的词性：
n.（名词）

1. A deciduous tree (Robinia pseudoacacia) in the pea family, native to the eastern and central United States and having alternate, pinnately compound leaves, spiny stipules, and hanging clusters of fragrant, creamy-white flowers.
黑洋槐：一种豆科落叶树木（洋槐 洋槐属） ，原于美国东部和中部，长有互生羽状复合叶，和带香味、奶油白色花簇