Which perennial weed is known for its three leaflets and compact white flowers?

The correct answer, identifying white clover as the perennial weed known for its three leaflets and compact white flowers, is grounded in its distinct morphological characteristics. White clover typically bears a trifoliate leaf structure, meaning each leaf consists of three leaflets, which is a defining trait of this species. The white flowers, which cluster in small, compact heads, rise above the foliage and are often noticeable during the flowering period, contributing to its identification.

In contrast, chickweed is characterized by its small, star-like white flowers and often appears in a sprawling form rather than compact clusters. Ground ivy features rounded, scalloped leaves and bell-shaped purple flowers, which differ significantly from the leaf structure and flower color of white clover. Prostrate spurge is recognized by its succulent leaves and yellow flowers, distinctly differentiating it from the white floral display of clover. Understanding these traits allows for accurate identification and management of these weeds in turfgrass settings.