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Referring to a plant database, dictionary, or encyclopedia can help you narrow down the name and genus of the flower. Use an online resource to look up the flower based on its physical characteristics and location. You can also access a print dictionary or encyclopedia at your local library or bookstore to look up the flower. Access an online plant dictionary here: http://www.bhg.com/gardening/plant-dictionary/. If you have a smartphone or a computer, you can download apps that identify flowers, such as PlantSnapp, PlantNet, and FlowerChecker. You will need to provide photographs of the flower to identify it with the app. An app may be ideal if you want to identify flowers while you are out on a hike or on a walk on a trail, as you can snap a photo of it and download it onto the app on your smartphone for a quick identification. If you are stumped on the identity of the flower, and a dictionary or app does not help, try putting a photo of the flower up on an image sharing site like Flickr. The online community may then be able to help you identify the flower using research and expert knowledge. Online forums for flower identification can also be a good option if you need help identifying a flower. Take a photograph of the flower on your smartphone or computer and then place the photograph in the search bar on your browser. Search the image online to see if you can find any matches on the internet. This can then help you identify the flower.  You can reverse image search on your Desktop by going to: https://images.google.com  To reverse image search on your mobile phone, try: https://reverse.photos
Look the flower up in plant database or dictionary. Use an app to identify the flower. Post a photo of the flower on Flickr for more information. Try reverse image searching a photo of the flower.