While strolling through the forest in Washington state, you may have spotted trees wrapped with thick green vines — or meadows carpeted with leaves. This lush perennial plant isn’t native to the ...

As many as 50 million people in the United States have an allergic reaction to poison ivy, poison sumac or poison oak each year, leaving them with an irritating rash that can stick around for weeks.

A common yard plant could be on its way out of Washington parks and gardens. On July 9, the Washington State Department of Agriculture announced it was adding the English (also known as common) and ...

Since the end of the second world war, factors such as more intensive farming and urbanisation have reduced the abundance of wildflowers in Britain. In fact, the past 90 years have seen the loss of ...