Pl@ntNet is an image sharing and retrieval application for the identification of plants. It is developed by scientists from four French research organisations (Cirad, INRA, Inria and IRD), and the Tela Botanica network, with the financial support of Agropolis fondation. Among other features, this free app helps identifying plant species from photographs, through a visual recognition software. Plant species that are well enough illustrated in the botanical reference database can be easily recognized. The number of species and the number of images used by the application evolve with contributions of end users to the project. It doesn't allow the identification of ornamental plants. It works even better than the pictures submitted are focused on one organ. Pictures of tree leaves on uniform background provide the most relevant results. If you correctly identify a species, you can participate to the project by submitting your observation with the "contribution" button. These contributions subject to a moderation process will be validated collaboratively. To find this application on the web, go to the following link: http://identify. plantnet-project. org/en/base/treeThose who want to contribute more interactively to this participatory science project can go to: http://www.tela-botanica. org/appli: pictoflorahttp://www.tela-botanica. org/appli: identiplantehttp://www.tela-botanica. org/page: liste_projets? id_projet=80&act=resumeFollow us: https://twitter.com/PlantNetProjecthttps://www.facebook.com/pages/Plantnet/488732104545546.