“Imagine if you will ... invasive alien plants are growing, spreading and thriving in your neighborhood.” It could be the tagline for a horror movie. Unfortunately, it is an issue we deal with every ...

Farmers in the U.S. have grown cannabis since the 1600s — but policymakers are still figuring out how to regulate two famous types of Cannabis sativa. A historian calls the plant "incredibly cryptic." ...

The invasive water hyacinth has taken over a communal pond in a small village in northern India. All other plants have been pushed out. Invasive species are reshaping ecosystems and local people’s ...

Hemp is a term for certain varieties of the Cannabis sativa species. In contrast to “marijuana,” — which is a common word for cannabis that is relatively abundant in THC — hemp has relatively little ...