Which of the following is considered a common noxious plant?

Thistle is considered a common noxious plant primarily due to its aggressive growth habits and ability to outcompete native flora. Noxious plants are typically defined as those that can cause harm to agricultural productivity, disrupt natural ecosystems, or even pose risks to human and animal health. Thistles can spread rapidly through their seed production and have deep taproots that make them difficult to control once established.

In contrast, the other options listed—raspberry, lily, and rosemary—are generally not classified as noxious. Raspberries can be invasive in some areas, but they are also valued for their fruit. Lilies and rosemary are typically cultivated for ornamental purposes and culinary use, respectively, without the same negative ecological impact associated with noxious plants like thistles.