A tap root system penetrates deep into the soil. In contrast, a fibrous root system is located closer to the soil surface, and forms a dense network of roots that also helps prevent soil erosion (lawn grasses are a good example, as are wheat, rice, and corn).
Taproot is found in dicots, while a fibrous root is found in monocots. Fibrous root is found in most grasses, while taproot is not found in most grasses.
