American plum

例句：

1. 1. The American plum tree is a popular ornamental tree in the United States.
   美国李子树是美国流行的观赏树种。
2. 2.The American plum tree produces beautiful red fruits that are enjoyed by many people.
   美国李子树结出美丽的红色果实，受到许多人的喜爱。
3. 3. The American plum tree is native to North America and has been cultivated for centuries.
   美国李子树原产于北美洲，数百年来一直被栽培。