Giant ragweed (Ambrosia trifida) is a tall, herbaceous plant native to North America. It can grow up to 15 feet in height and typically has large, lobed leaves. This plant thrives in disturbed areas, such as roadsides and agricultural fields, and is known for its rapid growth and ability to spread quickly. The plant produces large quantities of pollen, which can trigger allergies in sensitive individuals. Giant ragweed is also considered a significant weed in crops, as it competes for nutrients and water, potentially reducing agricultural yields. Effective management strategies are essential to control its spread in farming areas.