We visit an orchard where researchers are breeding Chestnut trees they hope will one day fight off a fungus that's been killing the iconic American tree for more than a century.

The "iconic and magical" cottonwood trees are the keystone species of the plant world and they're disappearing from Utah riverbanks. Scientists are trying to protect thembut budget freezes by ...

Every year the eastern cottonwood trees in Michigan release their fluffy seeds. The end of June likely marks the end of this process. Here's what to know.

The whitebark pine is a hardy tree that grows in an area stretching from British Columbia, Canada south to parts of California and east to Montana. It's a keystone species in its subalpine and ...

According to Kathleen Cain, author of “The Cottonwood Tree: An American Champion,” a single Eastern cottonwood can produce as many as 30 million seeds in one season.