U.K. plant conservation charity reveals list of plants at risk of extinction.
It can now be found at more than a dozen spots throughout the state.
Sandy plants are protected fortresses.
If you see a cactus in the wild, leave it be.
Munitions pollute a vast area of land in the U.S., larger than the state of Maine.
It is the most ancient flower found to date, raising questions about angiosperm evolution.
The plant could provide a more sustainable and health-friendly mosquito repellant.