紫花苜蓿

例句：

1. 1. The meadow is a popular spot for picnicking and bird watching.
   这个草地是野餐和观鸟的热门地点。
2. 2. She planted the seeds in the soil to grow her favorite plants.
   她把种子种在土壤里，以便种植她最喜欢的植物。
3. 3. The purple flowers of this plant are a symbol of abundance and prosperity.
   这种植物的紫色花朵象征着丰富和繁荣。