Which term refers to a plant that lives for multiple years and reproduces by seeds?

The term that refers to a plant that lives for multiple years and reproduces by seeds is "simple perennial." Perennials are characterized by their ability to persist for several growing seasons, typically coming back year after year. They can produce seeds, which allow for their propagation, as well as vegetative reproduction.

In contrast, annuals complete their life cycle in one growing season, while biennials typically require two years to complete their life cycle, flowering and producing seeds in the second year. The other terms "simplistic annual," "compound biennial," and "complex annual" do not adequately describe the characteristics of a multi-year plant that reproduces via seeds, reinforcing that "simple perennial" is the most accurate term.