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Phone app can quickly identify trees

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Published:
  • Leafsnap app on an iPhone.

    Associated Press

    Leafsnap app on an iPhone.

If you've ever wondered what type of tree was nearby but didn't have a guide book, a new smartphone app allows users with no formal training to satisfy their curiosity and contribute to science at the same time.
Scientists have developed the first mobile app to identify plants by simply photographing a leaf. The free iPhone and iPad app, called Leafsnap, instantly searches a growing library of leaf images amassed by the Smithsonian Institution. In seconds, it returns a likely species name, high-resolution photographs and information on the tree's flowers, fruit, seeds and bark.
Users make the identification and share their findings with the app's growing database to map the population of trees one phone at a time.
Leafsnap debuted in May, covering all the trees in New York's Central Park and Washington's Rock Creek Park. It has been downloaded more than 150,000 times in the month.
Associated Press

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