Fibrous root systems consist of many thin roots that spread out from the base of a plant. These roots grow close to the soil surface and help anchor the plant securely. They are efficient at absorbing water and nutrients from the top layers of soil, making them ideal for plants in well-drained environments. Common in grasses and some flowering plants, fibrous roots can help prevent soil erosion by holding the soil together. This type of root system allows plants to quickly take advantage of rainfall and can thrive in various soil types, contributing to the overall health of ecosystems.