What type of weed completes its life cycle in 3 or more seasons?

A weed that completes its life cycle in three or more seasons is classified as a perennial. Perennials are plants that live for multiple years and typically go through cycles of growth, flowering, and dormancy over several seasons. They can establish deep root systems, allowing them to survive unfavorable conditions between growing periods and emerge year after year.

Understanding the characteristics of perennial weeds is essential for pest management and control strategies, as these weeds can become established and challenging to eradicate. In contrast, annual weeds complete their life cycle in one season, while biennial weeds typically have a two-year life cycle. The choice of "seasonal" does not correspond to any standard classification of weed life cycles in horticulture. Therefore, the classification of perennial is the correct answer for a weed that spans three or more seasons.