What type of root system is typically found in dicots?

Dicots, or dicotyledons, are plants that typically display a taproot system, which consists of a primary root that grows downward and is thicker than the lateral roots branching off from it. This main root can reach deep into the soil, allowing the plant access to water and nutrients found deeper in the ground. The taproot system is characteristic of many dicot plants, such as carrots, dandelions, and oak trees, providing them with stability and a strong foundation.

In contrast, fibrous root systems, more commonly associated with monocots like grasses, consist of numerous small roots of similar size that spread out near the surface of the soil. Adventitious roots arise from unusual locations on the plant, often from stems or leaves rather than the primary root structure. Modified roots refer to roots that have adapted for specific functions, such as storage or support, but they do not define the standard root system type typically found in dicots. Hence, a taproot system is the defining characteristic of dicots among the options presented.