Winter annual weeds are defined as which sequence?

• A. Emerge in spring, overwinter as seedlings, then die in summer.
• B. Emerge in fall, overwinter as seedlings, then die in early summer.
• C. Emerge in winter, overwinter as adults, then die in spring.
• D. Emerge in fall and persist as perennials.

Answer: (B)

Winter annual weeds follow a life cycle that starts in fall, allowing them to survive the winter as young plants, then finish by early summer. They germinate in fall, overwinter as seedlings, resume growth in spring, produce seeds, and die in early summer. That pattern fits fall emergence with a winter-dormant stage and a quick spring-to-summer finish, which is why this choice is correct. The other options describe different timing or plant types—spring-emerging annuals wouldn’t overwinter as seedlings, winter-emerging adults aren’t typical for winter annuals, and perennials persist beyond a single growing season.