The University of California Department of Agriculture and Natural Resources (UCANR), has an online plant identification tool ...

Above: This photo tells an entire story. Taken at Roan Mountain State Park in Tennessee in January, it shows most of the deciduous trees are bare. However, you can easily see the light tan colors of ...

The spiky, iconic Canadian maple leaf. A large, lush Florida palm leaf. Thin aspen leaves rustling in the crisp Colorado air. You can probably recall many different leaf shapes from many different ...

A new leaf imaging system lets scientists watch plant stomata control water loss and carbon uptake in real time.

Identifying poison ivy involves recognizing its appearance in different seasons, as its color and form change throughout the year. If you grew up in a rural area, you’ve probably heard the old adage, ...