Which weed is known for its distinct heart-shaped leaves and bright yellow flowers?

The weed known for its distinct heart-shaped leaves and bright yellow flowers is Oxalis. This plant features clover-like foliage that is often glossy and green, which is easily recognizable due to its unique leaf shape. The bright yellow flowers typically bloom in clusters and are quite noticeable, contributing to the plant's identification. Oxalis can often be found in lawns and gardens, where it may become a common weed if not properly managed. Its presence is indicative of specific soil and environmental conditions, making it an important plant to recognize in pest management practices.