“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 ...

A team of researchers just examined 110 different marijuana genomes to figure out the origin of the plant. Their findings put the genesis of Cannabis sativa in northwest China. The research combined ...

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 ...