White clover (Trifolium repens L.) is a nitrogen-fixing plant that can significantly impact plant diversity in ecosystems. By enriching soil with nitrogen, clovers create a more fertile environment that can support a wider range of plant species. However, over-enrichment can favor fast-growing species, potentially reducing overall diversity. This project aims to investigate the specific impact of white clover on plant diversity in urban areas, particularly in Tenafly, New Jersey. By analyzing the DNA of different grass species in clover-rich and clover-poor areas, students hope to determine whether clovers positively influence plant biodiversity.