Point a phone at a plant and get three ranked answers — a modern identification key for weeds, in your pocket.

Agriculture
Mobile app
Classification
Weedr is a mobile application for weed recognition. Weedr builds on the latest technology in artificial intelligence and acts as a modern weed identification key that instantly tells you which weeds have been photographed.
Simply point the phone at the plants you want recognized. In an instant, you get three possible suggestions, arranged according to their probability.

More work
See the other cases, or read about the systems behind them.