HOUSTON — Pollen is brutal right now. A runny nose, irritated-itchy throat, and watery eyes are just some impacts pollen can have. Ragweed can have those same impacts but also can worsen asthma ...

Ragweed is a weed that grows all over the United States. It’s especially common in the Eastern and Midwestern states, and Alaska is the only state where it doesn’t grow. It triggers ragweed allergy ...

Why is common ragweed a problem? Common ragweed is an extreme weed — thriving in extreme environments and making a home for itself in every state, except Alaska. Common ragweed has shown resistance to ...