Peter Raven transformed the field of botany. His research in plant evolution, classification and biogeography deepened our understanding of how ...

There's a conundrum that has perplexed biologists since Charles Darwin himself. Why do some exotic species take off as invasive pests while others don't?

(This May 23 story has been repeated with no changes to the text) By Marta Serafinko May 23 (Reuters) - Some of the plants that make familiar landscapes recognizable may not survive by century's end ...

Plants may sometimes seem to be a mundane part of everyday life, but they are actually vital to all life on Earth. They provide food and shelter for animals, and they help purify the air we breathe.