Black wattle is part of Australia’s iconic acacia family, but it’s largely regarded as a pest overseas. But this fast-growing plant is a boon to gardeners, improving soil and sheltering other plants.
The globe is greening as plants grow faster in response to rising carbon dioxide. But a new analysis shows they aren’t using more water to do it - a rare piece of good news for our changing planet.
Most of the earthworms in the US Northeast and upper Midwest are nonnative species. Scientists are finding increasing evidence that invasive worms and invasive plants may help each other.
American ginseng, a slow-growing native plant long used in traditional medicine, was abundant in colonial times. Now illegal harvesting and other stresses are pushing it close to extinction.
Some Australian birds are pushing out other species, and even damaging trees. The good news is we can help stop the spread of these birds, by putting native plants in our gardens.
Australia’s risks losing its valuable native plants that could help solve a global food problem. So do we need new laws to stop the seeds being taken overseas?