Trillium is a genus of flowering plants known for their distinctive three-petaled flowers and whorled leaves. These perennial plants are commonly found in woodlands across North America and parts of Asia. They thrive in shaded areas and are often seen blooming in spring, adding beauty to forest floors. There are about 40 species of trillium, each varying in color, size, and habitat preferences. Some popular species include Trillium grandiflorum, known as the large-flowered trillium, and Trillium erectum, or the red trillium. These plants are also important for local ecosystems, providing food for various pollinators.