The United States and the United States alias: the United States and the United States, Sheng Jie wild peas, sensitive beauty, Gleditsia sinensis; Hemerocallis americana is a Liliaceae plant. Native to warm areas of Central and South America, south to Argentina and north to Florida and the West Indies. The Animal Husbandry Institute of Guangxi Zhuang Autonomous Region was introduced from Florida, USA on 1987. Years of trial planting show that it is suitable for planting in Guangxi and tropical and subtropical areas of China. This kind of grass is palatable, suitable for raising cattle, sheep and other animals, and can also be used as green manure. By 1994, the planting area in Guangxi had reached 140 square hm. Now it has escaped into the wild.