What is the term for a flowering plant that completes its life cycle in two years?

A flowering plant that completes its life cycle in two years is referred to as a biennial. Biennials typically germinate and grow during the first year, developing a root system and foliage, and then undergo flowering and seed production in their second year before dying off. This life cycle is distinct from that of annuals, which complete their life cycle in just one growing season, and perennials, which live for three years or more, blooming each season after they reach maturity. The term "perpetuals" is not commonly used in the context of plant life cycles, particularly in relation to the descriptions of annuals, biennials, and perennials. Understanding the characteristics of these different plant types is key to effectively managing them in horticulture and agriculture.