Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaf shapes play an important role in tree identification, providing key ...

We've all heard the classic saying "leaves of three, let it be," which means don't touch the poison ivy. But just how accurate is that timeless phrase? While this specific mnemonic device exists to ...

Q: How reliable are plant identification apps? I’ve tested several plant identification apps and have found them surprisingly, but not completely, accurate. You simply snap a photo of the plant in ...

The tropical butterfly Heliconius erato distinguishes between shapes, and uses them as a cue for choosing the plants on which to feed and lay eggs, shows new research by scientists from the University ...