When this plant on screen in a movie or TV show, you know it's set in the American Southwest. The fact is, it's an invasive ...

More than 30 years ago, a group of scientists planted 4,200 seeds of the rare Pitcher’s thistle in the sandy dunes of the ...

“Asters, Groundsels, and especially Thistles, afford most familiar examples of a hairy or downy pappus; those of thistles, &c. in autumn sailing about in every breeze.” — Asa Gray, “How Plants Grow,” ...

Which milk thistle tea is best? Although it may look like a common weed to the untrained eye, the milk thistle plant has been used in traditional medicine for thousands of years. Studies have shown ...