Beth (Trillium Erectum), also known as red trillium wake robin, purple trillium, bethroot,or stinking Benjamin is a species of flowering plant in the family Melanthiaceae. It is native to the eastern United States and eastern Canada.Trillium Erectum is a perennial herbaceous plant that grows to about 40 cm in height. Like all trilliums, its parts are in groups of three, with a 3-petalled flower above a whorl of pointed triple leaves. The flower petals wither, leaving behind a fruit that ripens to a dark red berry-like capsule, 1 to 1.5 centimeters long.