If there's a pretty white-flowering tree in front of your house in spring, chances are it's Bradford pear (Pyrus calleryana), also known as Callery pear. The white blooms are a welcome sign of spring ...

Add Yahoo as a preferred source to see more of our stories on Google. It's officially spring in Ohio, meaning you've probably seen white-flowering Callery pear trees blooming all over the region. The ...

What began as a scientific effort to protect America’s pear orchards has now become one of the country’s most enduring ecological cautionary tales. More than a century after the U.S.

Indiana has rich biodiversity with thousands of species in unique habitats, but the ornamental plant trade, globalization and development have introduced new threats to these ecosystems. IndyStar is ...